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Diffstat (limited to 'libraries/Firmata/examples')
11 files changed, 2420 insertions, 0 deletions
diff --git a/libraries/Firmata/examples/AllInputsFirmata/AllInputsFirmata.ino b/libraries/Firmata/examples/AllInputsFirmata/AllInputsFirmata.ino new file mode 100644 index 0000000..bff7366 --- /dev/null +++ b/libraries/Firmata/examples/AllInputsFirmata/AllInputsFirmata.ino @@ -0,0 +1,90 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* + * This firmware reads all inputs and sends them as fast as it can. It was + * inspired by the ease-of-use of the Arduino2Max program. + * + * This example code is in the public domain. + */ +#include <Firmata.h> + +byte pin; + +int analogValue; +int previousAnalogValues[TOTAL_ANALOG_PINS]; + +byte portStatus[TOTAL_PORTS]; // each bit: 1=pin is digital input, 0=other/ignore +byte previousPINs[TOTAL_PORTS]; + +/* timer variables */ +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis +/* make sure that the FTDI buffer doesn't go over 60 bytes, otherwise you + get long, random delays. So only read analogs every 20ms or so */ +int samplingInterval = 19; // how often to run the main loop (in ms) + +void sendPort(byte portNumber, byte portValue) +{ + portValue = portValue & portStatus[portNumber]; + if(previousPINs[portNumber] != portValue) { + Firmata.sendDigitalPort(portNumber, portValue); + previousPINs[portNumber] = portValue; + } +} + +void setup() +{ + byte i, port, status; + + Firmata.setFirmwareVersion(0, 1); + + for(pin = 0; pin < TOTAL_PINS; pin++) { + if IS_PIN_DIGITAL(pin) pinMode(PIN_TO_DIGITAL(pin), INPUT); + } + + for (port=0; port<TOTAL_PORTS; port++) { + status = 0; + for (i=0; i<8; i++) { + if (IS_PIN_DIGITAL(port * 8 + i)) status |= (1 << i); + } + portStatus[port] = status; + } + + Firmata.begin(57600); +} + +void loop() +{ + byte i; + + for (i=0; i<TOTAL_PORTS; i++) { + sendPort(i, readPort(i, 0xff)); + } + /* make sure that the FTDI buffer doesn't go over 60 bytes, otherwise you + get long, random delays. So only read analogs every 20ms or so */ + currentMillis = millis(); + if(currentMillis - previousMillis > samplingInterval) { + previousMillis += samplingInterval; + while(Firmata.available()) { + Firmata.processInput(); + } + for(pin = 0; pin < TOTAL_ANALOG_PINS; pin++) { + analogValue = analogRead(pin); + if(analogValue != previousAnalogValues[pin]) { + Firmata.sendAnalog(pin, analogValue); + previousAnalogValues[pin] = analogValue; + } + } + } +} + + diff --git a/libraries/Firmata/examples/AnalogFirmata/AnalogFirmata.ino b/libraries/Firmata/examples/AnalogFirmata/AnalogFirmata.ino new file mode 100644 index 0000000..ff1d664 --- /dev/null +++ b/libraries/Firmata/examples/AnalogFirmata/AnalogFirmata.ino @@ -0,0 +1,94 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* This firmware supports as many analog ports as possible, all analog inputs, + * four PWM outputs, and two with servo support. + * + * This example code is in the public domain. + */ +#include <Servo.h> +#include <Firmata.h> + +/*============================================================================== + * GLOBAL VARIABLES + *============================================================================*/ + +/* servos */ +Servo servo9, servo10; // one instance per pin +/* analog inputs */ +int analogInputsToReport = 0; // bitwise array to store pin reporting +int analogPin = 0; // counter for reading analog pins +/* timer variables */ +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis + + +/*============================================================================== + * FUNCTIONS + *============================================================================*/ + +void analogWriteCallback(byte pin, int value) +{ + switch(pin) { + case 9: servo9.write(value); break; + case 10: servo10.write(value); break; + case 3: + case 5: + case 6: + case 11: // PWM pins + analogWrite(pin, value); + break; + } +} +// ----------------------------------------------------------------------------- +// sets bits in a bit array (int) to toggle the reporting of the analogIns +void reportAnalogCallback(byte pin, int value) +{ + if(value == 0) { + analogInputsToReport = analogInputsToReport &~ (1 << pin); + } + else { // everything but 0 enables reporting of that pin + analogInputsToReport = analogInputsToReport | (1 << pin); + } + // TODO: save status to EEPROM here, if changed +} + +/*============================================================================== + * SETUP() + *============================================================================*/ +void setup() +{ + Firmata.setFirmwareVersion(0, 2); + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + Firmata.attach(REPORT_ANALOG, reportAnalogCallback); + + servo9.attach(9); + servo10.attach(10); + Firmata.begin(57600); +} + +/*============================================================================== + * LOOP() + *============================================================================*/ +void loop() +{ + while(Firmata.available()) + Firmata.processInput(); + currentMillis = millis(); + if(currentMillis - previousMillis > 20) { + previousMillis += 20; // run this every 20ms + for(analogPin=0;analogPin<TOTAL_ANALOG_PINS;analogPin++) { + if( analogInputsToReport & (1 << analogPin) ) + Firmata.sendAnalog(analogPin, analogRead(analogPin)); + } + } +} + diff --git a/libraries/Firmata/examples/EchoString/EchoString.ino b/libraries/Firmata/examples/EchoString/EchoString.ino new file mode 100644 index 0000000..5079697 --- /dev/null +++ b/libraries/Firmata/examples/EchoString/EchoString.ino @@ -0,0 +1,46 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* This sketch accepts strings and raw sysex messages and echos them back. + * + * This example code is in the public domain. + */ +#include <Firmata.h> + +byte analogPin; + +void stringCallback(char *myString) +{ + Firmata.sendString(myString); +} + + +void sysexCallback(byte command, byte argc, byte*argv) +{ + Firmata.sendSysex(command, argc, argv); +} + +void setup() +{ + Firmata.setFirmwareVersion(0, 1); + Firmata.attach(STRING_DATA, stringCallback); + Firmata.attach(START_SYSEX, sysexCallback); + Firmata.begin(57600); +} + +void loop() +{ + while(Firmata.available()) { + Firmata.processInput(); + } +} + + diff --git a/libraries/Firmata/examples/I2CFirmata/I2CFirmata.ino b/libraries/Firmata/examples/I2CFirmata/I2CFirmata.ino new file mode 100644 index 0000000..1da8963 --- /dev/null +++ b/libraries/Firmata/examples/I2CFirmata/I2CFirmata.ino @@ -0,0 +1,228 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* + Copyright (C) 2009 Jeff Hoefs. All rights reserved. + Copyright (C) 2009 Shigeru Kobayashi. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + See file LICENSE.txt for further informations on licensing terms. + */ + +#include <Wire.h> +#include <Firmata.h> + + +#define I2C_WRITE B00000000 +#define I2C_READ B00001000 +#define I2C_READ_CONTINUOUSLY B00010000 +#define I2C_STOP_READING B00011000 +#define I2C_READ_WRITE_MODE_MASK B00011000 + +#define MAX_QUERIES 8 + +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis +unsigned int samplingInterval = 32; // default sampling interval is 33ms +unsigned int i2cReadDelayTime = 0; // default delay time between i2c read request and Wire.requestFrom() +unsigned int powerPinsEnabled = 0; // use as boolean to prevent enablePowerPins from being called more than once + +#define MINIMUM_SAMPLING_INTERVAL 10 + +#define REGISTER_NOT_SPECIFIED -1 + +struct i2c_device_info { + byte addr; + byte reg; + byte bytes; +}; + +i2c_device_info query[MAX_QUERIES]; + +byte i2cRxData[32]; +boolean readingContinuously = false; +byte queryIndex = 0; + +void readAndReportData(byte address, int theRegister, byte numBytes) +{ + if (theRegister != REGISTER_NOT_SPECIFIED) { + Wire.beginTransmission(address); + Wire.write((byte)theRegister); + Wire.endTransmission(); + delayMicroseconds(i2cReadDelayTime); // delay is necessary for some devices such as WiiNunchuck + } + else { + theRegister = 0; // fill the register with a dummy value + } + + Wire.requestFrom(address, numBytes); + + // check to be sure correct number of bytes were returned by slave + if(numBytes == Wire.available()) { + i2cRxData[0] = address; + i2cRxData[1] = theRegister; + for (int i = 0; i < numBytes; i++) { + i2cRxData[2 + i] = Wire.read(); + } + // send slave address, register and received bytes + Firmata.sendSysex(I2C_REPLY, numBytes + 2, i2cRxData); + } + else { + if(numBytes > Wire.available()) { + Firmata.sendString("I2C Read Error: Too many bytes received"); + } else { + Firmata.sendString("I2C Read Error: Too few bytes received"); + } + } + +} + +void sysexCallback(byte command, byte argc, byte *argv) +{ + byte mode; + byte slaveAddress; + byte slaveRegister; + byte data; + int delayTime; + + if (command == I2C_REQUEST) { + mode = argv[1] & I2C_READ_WRITE_MODE_MASK; + slaveAddress = argv[0]; + + switch(mode) { + case I2C_WRITE: + Wire.beginTransmission(slaveAddress); + for (byte i = 2; i < argc; i += 2) { + data = argv[i] + (argv[i + 1] << 7); + Wire.write(data); + } + Wire.endTransmission(); + delayMicroseconds(70); // TODO is this needed? + break; + case I2C_READ: + if (argc == 6) { + // a slave register is specified + slaveRegister = argv[2] + (argv[3] << 7); + data = argv[4] + (argv[5] << 7); // bytes to read + readAndReportData(slaveAddress, (int)slaveRegister, data); + } + else { + // a slave register is NOT specified + data = argv[2] + (argv[3] << 7); // bytes to read + readAndReportData(slaveAddress, (int)REGISTER_NOT_SPECIFIED, data); + } + break; + case I2C_READ_CONTINUOUSLY: + if ((queryIndex + 1) >= MAX_QUERIES) { + // too many queries, just ignore + Firmata.sendString("too many queries"); + break; + } + query[queryIndex].addr = slaveAddress; + query[queryIndex].reg = argv[2] + (argv[3] << 7); + query[queryIndex].bytes = argv[4] + (argv[5] << 7); + readingContinuously = true; + queryIndex++; + break; + case I2C_STOP_READING: + readingContinuously = false; + queryIndex = 0; + break; + default: + break; + } + } + else if (command == SAMPLING_INTERVAL) { + samplingInterval = argv[0] + (argv[1] << 7); + + if (samplingInterval < MINIMUM_SAMPLING_INTERVAL) { + samplingInterval = MINIMUM_SAMPLING_INTERVAL; + } + + samplingInterval -= 1; + Firmata.sendString("sampling interval"); + } + + else if (command == I2C_CONFIG) { + delayTime = (argv[4] + (argv[5] << 7)); // MSB + delayTime = (delayTime << 8) + (argv[2] + (argv[3] << 7)); // add LSB + + if((argv[0] + (argv[1] << 7)) > 0) { + enablePowerPins(PORTC3, PORTC2); + } + + if(delayTime > 0) { + i2cReadDelayTime = delayTime; + } + + if(argc > 6) { + // If you extend I2C_Config, handle your data here + } + + } +} + +void systemResetCallback() +{ + readingContinuously = false; + queryIndex = 0; +} + +/* reference: BlinkM_funcs.h by Tod E. Kurt, ThingM, http://thingm.com/ */ +// Enables Pins A2 and A3 to be used as GND and Power +// so that I2C devices can be plugged directly +// into Arduino header (pins A2 - A5) +static void enablePowerPins(byte pwrpin, byte gndpin) +{ + if(powerPinsEnabled == 0) { + DDRC |= _BV(pwrpin) | _BV(gndpin); + PORTC &=~ _BV(gndpin); + PORTC |= _BV(pwrpin); + powerPinsEnabled = 1; + Firmata.sendString("Power pins enabled"); + delay(100); + } +} + +void setup() +{ + Firmata.setFirmwareVersion(2, 0); + + Firmata.attach(START_SYSEX, sysexCallback); + Firmata.attach(SYSTEM_RESET, systemResetCallback); + + for (int i = 0; i < TOTAL_PINS; ++i) { + pinMode(i, OUTPUT); + } + + Firmata.begin(57600); + Wire.begin(); +} + +void loop() +{ + while (Firmata.available()) { + Firmata.processInput(); + } + + currentMillis = millis(); + if (currentMillis - previousMillis > samplingInterval) { + previousMillis += samplingInterval; + + for (byte i = 0; i < queryIndex; i++) { + readAndReportData(query[i].addr, query[i].reg, query[i].bytes); + } + } +} diff --git a/libraries/Firmata/examples/OldStandardFirmata/LICENSE.txt b/libraries/Firmata/examples/OldStandardFirmata/LICENSE.txt new file mode 100644 index 0000000..77cec6d --- /dev/null +++ b/libraries/Firmata/examples/OldStandardFirmata/LICENSE.txt @@ -0,0 +1,458 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* + Copyright (C) 2006-2008 Hans-Christoph Steiner. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + See file LICENSE.txt for further informations on licensing terms. + */ + +/* + * This is an old version of StandardFirmata (v2.0). It is kept here because + * its the last version that works on an ATMEGA8 chip. Also, it can be used + * for host software that has not been updated to a newer version of the + * protocol. It also uses the old baud rate of 115200 rather than 57600. + */ + +#include <EEPROM.h> +#include <Firmata.h> + +/*============================================================================== + * GLOBAL VARIABLES + *============================================================================*/ + +/* analog inputs */ +int analogInputsToReport = 0; // bitwise array to store pin reporting +int analogPin = 0; // counter for reading analog pins + +/* digital pins */ +byte reportPINs[TOTAL_PORTS]; // PIN == input port +byte previousPINs[TOTAL_PORTS]; // PIN == input port +byte pinStatus[TOTAL_PINS]; // store pin status, default OUTPUT +byte portStatus[TOTAL_PORTS]; + +/* timer variables */ +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis + + +/*============================================================================== + * FUNCTIONS + *============================================================================*/ + +void outputPort(byte portNumber, byte portValue) +{ + portValue = portValue &~ portStatus[portNumber]; + if(previousPINs[portNumber] != portValue) { + Firmata.sendDigitalPort(portNumber, portValue); + previousPINs[portNumber] = portValue; + Firmata.sendDigitalPort(portNumber, portValue); + } +} + +/* ----------------------------------------------------------------------------- + * check all the active digital inputs for change of state, then add any events + * to the Serial output queue using Serial.print() */ +void checkDigitalInputs(void) +{ + byte i, tmp; + for(i=0; i < TOTAL_PORTS; i++) { + if(reportPINs[i]) { + switch(i) { + case 0: outputPort(0, PIND &~ B00000011); break; // ignore Rx/Tx 0/1 + case 1: outputPort(1, PINB); break; + case 2: outputPort(2, PINC); break; + } + } + } +} + +// ----------------------------------------------------------------------------- +/* sets the pin mode to the correct state and sets the relevant bits in the + * two bit-arrays that track Digital I/O and PWM status + */ +void setPinModeCallback(byte pin, int mode) { + byte port = 0; + byte offset = 0; + + if (pin < 8) { + port = 0; + offset = 0; + } else if (pin < 14) { + port = 1; + offset = 8; + } else if (pin < 22) { + port = 2; + offset = 14; + } + + if(pin > 1) { // ignore RxTx (pins 0 and 1) + pinStatus[pin] = mode; + switch(mode) { + case INPUT: + pinMode(pin, INPUT); + portStatus[port] = portStatus[port] &~ (1 << (pin - offset)); + break; + case OUTPUT: + digitalWrite(pin, LOW); // disable PWM + case PWM: + pinMode(pin, OUTPUT); + portStatus[port] = portStatus[port] | (1 << (pin - offset)); + break; + //case ANALOG: // TODO figure this out + default: + Firmata.sendString(""); + } + // TODO: save status to EEPROM here, if changed + } +} + +void analogWriteCallback(byte pin, int value) +{ + setPinModeCallback(pin,PWM); + analogWrite(pin, value); +} + +void digitalWriteCallback(byte port, int value) +{ + switch(port) { + case 0: // pins 2-7 (don't change Rx/Tx, pins 0 and 1) + // 0xFF03 == B1111111100000011 0x03 == B00000011 + PORTD = (value &~ 0xFF03) | (PORTD & 0x03); + break; + case 1: // pins 8-13 (14,15 are disabled for the crystal) + PORTB = (byte)value; + break; + case 2: // analog pins used as digital + PORTC = (byte)value; + break; + } +} + +// ----------------------------------------------------------------------------- +/* sets bits in a bit array (int) to toggle the reporting of the analogIns + */ +//void FirmataClass::setAnalogPinReporting(byte pin, byte state) { +//} +void reportAnalogCallback(byte pin, int value) +{ + if(value == 0) { + analogInputsToReport = analogInputsToReport &~ (1 << pin); + } + else { // everything but 0 enables reporting of that pin + analogInputsToReport = analogInputsToReport | (1 << pin); + } + // TODO: save status to EEPROM here, if changed +} + +void reportDigitalCallback(byte port, int value) +{ + reportPINs[port] = (byte)value; + if(port == 2) // turn off analog reporting when used as digital + analogInputsToReport = 0; +} + +/*============================================================================== + * SETUP() + *============================================================================*/ +void setup() +{ + byte i; + + Firmata.setFirmwareVersion(2, 0); + + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback); + Firmata.attach(REPORT_ANALOG, reportAnalogCallback); + Firmata.attach(REPORT_DIGITAL, reportDigitalCallback); + Firmata.attach(SET_PIN_MODE, setPinModeCallback); + + portStatus[0] = B00000011; // ignore Tx/RX pins + portStatus[1] = B11000000; // ignore 14/15 pins + portStatus[2] = B00000000; + +// for(i=0; i<TOTAL_PINS; ++i) { // TODO make this work with analogs + for(i=0; i<14; ++i) { + setPinModeCallback(i,OUTPUT); + } + // set all outputs to 0 to make sure internal pull-up resistors are off + PORTB = 0; // pins 8-15 + PORTC = 0; // analog port + PORTD = 0; // pins 0-7 + + // TODO rethink the init, perhaps it should report analog on default + for(i=0; i<TOTAL_PORTS; ++i) { + reportPINs[i] = false; + } + // TODO: load state from EEPROM here + + /* send digital inputs here, if enabled, to set the initial state on the + * host computer, since once in the loop(), this firmware will only send + * digital data on change. */ + if(reportPINs[0]) outputPort(0, PIND &~ B00000011); // ignore Rx/Tx 0/1 + if(reportPINs[1]) outputPort(1, PINB); + if(reportPINs[2]) outputPort(2, PINC); + + Firmata.begin(115200); +} + +/*============================================================================== + * LOOP() + *============================================================================*/ +void loop() +{ +/* DIGITALREAD - as fast as possible, check for changes and output them to the + * FTDI buffer using Serial.print() */ + checkDigitalInputs(); + currentMillis = millis(); + if(currentMillis - previousMillis > 20) { + previousMillis += 20; // run this every 20ms + /* SERIALREAD - Serial.read() uses a 128 byte circular buffer, so handle + * all serialReads at once, i.e. empty the buffer */ + while(Firmata.available()) + Firmata.processInput(); + /* SEND FTDI WRITE BUFFER - make sure that the FTDI buffer doesn't go over + * 60 bytes. use a timer to sending an event character every 4 ms to + * trigger the buffer to dump. */ + + /* ANALOGREAD - right after the event character, do all of the + * analogReads(). These only need to be done every 4ms. */ + for(analogPin=0;analogPin<TOTAL_ANALOG_PINS;analogPin++) { + if( analogInputsToReport & (1 << analogPin) ) { + Firmata.sendAnalog(analogPin, analogRead(analogPin)); + } + } + } +} diff --git a/libraries/Firmata/examples/ServoFirmata/ServoFirmata.ino b/libraries/Firmata/examples/ServoFirmata/ServoFirmata.ino new file mode 100644 index 0000000..cdcfff0 --- /dev/null +++ b/libraries/Firmata/examples/ServoFirmata/ServoFirmata.ino @@ -0,0 +1,53 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* This firmware supports as many servos as possible using the Servo library + * included in Arduino 0017 + * + * TODO add message to configure minPulse/maxPulse/degrees + * + * This example code is in the public domain. + */ + +#include <Servo.h> +#include <Firmata.h> + +Servo servos[MAX_SERVOS]; + +void analogWriteCallback(byte pin, int value) +{ + if (IS_PIN_SERVO(pin)) { + servos[PIN_TO_SERVO(pin)].write(value); + } +} + +void setup() +{ + byte pin; + + Firmata.setFirmwareVersion(0, 2); + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + + for (pin=0; pin < TOTAL_PINS; pin++) { + if (IS_PIN_SERVO(pin)) { + servos[PIN_TO_SERVO(pin)].attach(PIN_TO_DIGITAL(pin)); + } + } + + Firmata.begin(57600); +} + +void loop() +{ + while(Firmata.available()) + Firmata.processInput(); +} + diff --git a/libraries/Firmata/examples/SimpleAnalogFirmata/SimpleAnalogFirmata.ino b/libraries/Firmata/examples/SimpleAnalogFirmata/SimpleAnalogFirmata.ino new file mode 100644 index 0000000..44ea91e --- /dev/null +++ b/libraries/Firmata/examples/SimpleAnalogFirmata/SimpleAnalogFirmata.ino @@ -0,0 +1,46 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* Supports as many analog inputs and analog PWM outputs as possible. + * + * This example code is in the public domain. + */ +#include <Firmata.h> + +byte analogPin = 0; + +void analogWriteCallback(byte pin, int value) +{ + if (IS_PIN_PWM(pin)) { + pinMode(PIN_TO_DIGITAL(pin), OUTPUT); + analogWrite(PIN_TO_PWM(pin), value); + } +} + +void setup() +{ + Firmata.setFirmwareVersion(0, 1); + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + Firmata.begin(57600); +} + +void loop() +{ + while(Firmata.available()) { + Firmata.processInput(); + } + // do one analogRead per loop, so if PC is sending a lot of + // analog write messages, we will only delay 1 analogRead + Firmata.sendAnalog(analogPin, analogRead(analogPin)); + analogPin = analogPin + 1; + if (analogPin >= TOTAL_ANALOG_PINS) analogPin = 0; +} + diff --git a/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino b/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino new file mode 100644 index 0000000..a0d764f --- /dev/null +++ b/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino @@ -0,0 +1,72 @@ +/* + * Firmata is a generic protocol for communicating with microcontrollers + * from software on a host computer. It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* Supports as many digital inputs and outputs as possible. + * + * This example code is in the public domain. + */ +#include <Firmata.h> + +byte previousPIN[TOTAL_PORTS]; // PIN means PORT for input +byte previousPORT[TOTAL_PORTS]; + +void outputPort(byte portNumber, byte portValue) +{ + // only send the data when it changes, otherwise you get too many messages! + if (previousPIN[portNumber] != portValue) { + Firmata.sendDigitalPort(portNumber, portValue); + previousPIN[portNumber] = portValue; + } +} + +void setPinModeCallback(byte pin, int mode) { + if (IS_PIN_DIGITAL(pin)) { + pinMode(PIN_TO_DIGITAL(pin), mode); + } +} + +void digitalWriteCallback(byte port, int value) +{ + byte i; + byte currentPinValue, previousPinValue; + + if (port < TOTAL_PORTS && value != previousPORT[port]) { + for(i=0; i<8; i++) { + currentPinValue = (byte) value & (1 << i); + previousPinValue = previousPORT[port] & (1 << i); + if(currentPinValue != previousPinValue) { + digitalWrite(i + (port*8), currentPinValue); + } + } + previousPORT[port] = value; + } +} + +void setup() +{ + Firmata.setFirmwareVersion(0, 1); + Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback); + Firmata.attach(SET_PIN_MODE, setPinModeCallback); + Firmata.begin(57600); +} + +void loop() +{ + byte i; + + for (i=0; i<TOTAL_PORTS; i++) { + outputPort(i, readPort(i, 0xff)); + } + + while(Firmata.available()) { + Firmata.processInput(); + } +} diff --git a/libraries/Firmata/examples/StandardFirmata/LICENSE.txt b/libraries/Firmata/examples/StandardFirmata/LICENSE.txt new file mode 100644 index 0000000..77cec6d --- /dev/null +++ b/libraries/Firmata/examples/StandardFirmata/LICENSE.txt @@ -0,0 +1,458 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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It is intended to work with + * any host computer software package. + * + * To download a host software package, please clink on the following link + * to open the download page in your default browser. + * + * http://firmata.org/wiki/Download + */ + +/* + Copyright (C) 2006-2008 Hans-Christoph Steiner. All rights reserved. + Copyright (C) 2010-2011 Paul Stoffregen. All rights reserved. + Copyright (C) 2009 Shigeru Kobayashi. All rights reserved. + Copyright (C) 2009-2011 Jeff Hoefs. All rights reserved. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + See file LICENSE.txt for further informations on licensing terms. + + formatted using the GNU C formatting and indenting +*/ + +/* + * TODO: use Program Control to load stored profiles from EEPROM + */ + +#include <Servo.h> +#include <Wire.h> +#include <Firmata.h> + +// move the following defines to Firmata.h? +#define I2C_WRITE B00000000 +#define I2C_READ B00001000 +#define I2C_READ_CONTINUOUSLY B00010000 +#define I2C_STOP_READING B00011000 +#define I2C_READ_WRITE_MODE_MASK B00011000 +#define I2C_10BIT_ADDRESS_MODE_MASK B00100000 + +#define MAX_QUERIES 8 +#define MINIMUM_SAMPLING_INTERVAL 10 + +#define REGISTER_NOT_SPECIFIED -1 + +/*============================================================================== + * GLOBAL VARIABLES + *============================================================================*/ + +/* analog inputs */ +int analogInputsToReport = 0; // bitwise array to store pin reporting + +/* digital input ports */ +byte reportPINs[TOTAL_PORTS]; // 1 = report this port, 0 = silence +byte previousPINs[TOTAL_PORTS]; // previous 8 bits sent + +/* pins configuration */ +byte pinConfig[TOTAL_PINS]; // configuration of every pin +byte portConfigInputs[TOTAL_PORTS]; // each bit: 1 = pin in INPUT, 0 = anything else +int pinState[TOTAL_PINS]; // any value that has been written + +/* timer variables */ +unsigned long currentMillis; // store the current value from millis() +unsigned long previousMillis; // for comparison with currentMillis +int samplingInterval = 19; // how often to run the main loop (in ms) + +/* i2c data */ +struct i2c_device_info { + byte addr; + byte reg; + byte bytes; +}; + +/* for i2c read continuous more */ +i2c_device_info query[MAX_QUERIES]; + +byte i2cRxData[32]; +boolean isI2CEnabled = false; +signed char queryIndex = -1; +unsigned int i2cReadDelayTime = 0; // default delay time between i2c read request and Wire.requestFrom() + +Servo servos[MAX_SERVOS]; +/*============================================================================== + * FUNCTIONS + *============================================================================*/ + +void readAndReportData(byte address, int theRegister, byte numBytes) { + // allow I2C requests that don't require a register read + // for example, some devices using an interrupt pin to signify new data available + // do not always require the register read so upon interrupt you call Wire.requestFrom() + if (theRegister != REGISTER_NOT_SPECIFIED) { + Wire.beginTransmission(address); + #if ARDUINO >= 100 + Wire.write((byte)theRegister); + #else + Wire.send((byte)theRegister); + #endif + Wire.endTransmission(); + delayMicroseconds(i2cReadDelayTime); // delay is necessary for some devices such as WiiNunchuck + } else { + theRegister = 0; // fill the register with a dummy value + } + + Wire.requestFrom(address, numBytes); // all bytes are returned in requestFrom + + // check to be sure correct number of bytes were returned by slave + if(numBytes == Wire.available()) { + i2cRxData[0] = address; + i2cRxData[1] = theRegister; + for (int i = 0; i < numBytes; i++) { + #if ARDUINO >= 100 + i2cRxData[2 + i] = Wire.read(); + #else + i2cRxData[2 + i] = Wire.receive(); + #endif + } + } + else { + if(numBytes > Wire.available()) { + Firmata.sendString("I2C Read Error: Too many bytes received"); + } else { + Firmata.sendString("I2C Read Error: Too few bytes received"); + } + } + + // send slave address, register and received bytes + Firmata.sendSysex(SYSEX_I2C_REPLY, numBytes + 2, i2cRxData); +} + +void outputPort(byte portNumber, byte portValue, byte forceSend) +{ + // pins not configured as INPUT are cleared to zeros + portValue = portValue & portConfigInputs[portNumber]; + // only send if the value is different than previously sent + if(forceSend || previousPINs[portNumber] != portValue) { + Firmata.sendDigitalPort(portNumber, portValue); + previousPINs[portNumber] = portValue; + } +} + +/* ----------------------------------------------------------------------------- + * check all the active digital inputs for change of state, then add any events + * to the Serial output queue using Serial.print() */ +void checkDigitalInputs(void) +{ + /* Using non-looping code allows constants to be given to readPort(). + * The compiler will apply substantial optimizations if the inputs + * to readPort() are compile-time constants. */ + if (TOTAL_PORTS > 0 && reportPINs[0]) outputPort(0, readPort(0, portConfigInputs[0]), false); + if (TOTAL_PORTS > 1 && reportPINs[1]) outputPort(1, readPort(1, portConfigInputs[1]), false); + if (TOTAL_PORTS > 2 && reportPINs[2]) outputPort(2, readPort(2, portConfigInputs[2]), false); + if (TOTAL_PORTS > 3 && reportPINs[3]) outputPort(3, readPort(3, portConfigInputs[3]), false); + if (TOTAL_PORTS > 4 && reportPINs[4]) outputPort(4, readPort(4, portConfigInputs[4]), false); + if (TOTAL_PORTS > 5 && reportPINs[5]) outputPort(5, readPort(5, portConfigInputs[5]), false); + if (TOTAL_PORTS > 6 && reportPINs[6]) outputPort(6, readPort(6, portConfigInputs[6]), false); + if (TOTAL_PORTS > 7 && reportPINs[7]) outputPort(7, readPort(7, portConfigInputs[7]), false); + if (TOTAL_PORTS > 8 && reportPINs[8]) outputPort(8, readPort(8, portConfigInputs[8]), false); + if (TOTAL_PORTS > 9 && reportPINs[9]) outputPort(9, readPort(9, portConfigInputs[9]), false); + if (TOTAL_PORTS > 10 && reportPINs[10]) outputPort(10, readPort(10, portConfigInputs[10]), false); + if (TOTAL_PORTS > 11 && reportPINs[11]) outputPort(11, readPort(11, portConfigInputs[11]), false); + if (TOTAL_PORTS > 12 && reportPINs[12]) outputPort(12, readPort(12, portConfigInputs[12]), false); + if (TOTAL_PORTS > 13 && reportPINs[13]) outputPort(13, readPort(13, portConfigInputs[13]), false); + if (TOTAL_PORTS > 14 && reportPINs[14]) outputPort(14, readPort(14, portConfigInputs[14]), false); + if (TOTAL_PORTS > 15 && reportPINs[15]) outputPort(15, readPort(15, portConfigInputs[15]), false); +} + +// ----------------------------------------------------------------------------- +/* sets the pin mode to the correct state and sets the relevant bits in the + * two bit-arrays that track Digital I/O and PWM status + */ +void setPinModeCallback(byte pin, int mode) +{ + if (pinConfig[pin] == I2C && isI2CEnabled && mode != I2C) { + // disable i2c so pins can be used for other functions + // the following if statements should reconfigure the pins properly + disableI2CPins(); + } + if (IS_PIN_SERVO(pin) && mode != SERVO && servos[PIN_TO_SERVO(pin)].attached()) { + servos[PIN_TO_SERVO(pin)].detach(); + } + if (IS_PIN_ANALOG(pin)) { + reportAnalogCallback(PIN_TO_ANALOG(pin), mode == ANALOG ? 1 : 0); // turn on/off reporting + } + if (IS_PIN_DIGITAL(pin)) { + if (mode == INPUT) { + portConfigInputs[pin/8] |= (1 << (pin & 7)); + } else { + portConfigInputs[pin/8] &= ~(1 << (pin & 7)); + } + } + pinState[pin] = 0; + switch(mode) { + case ANALOG: + if (IS_PIN_ANALOG(pin)) { + if (IS_PIN_DIGITAL(pin)) { + pinMode(PIN_TO_DIGITAL(pin), INPUT); // disable output driver + digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups + } + pinConfig[pin] = ANALOG; + } + break; + case INPUT: + if (IS_PIN_DIGITAL(pin)) { + pinMode(PIN_TO_DIGITAL(pin), INPUT); // disable output driver + digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable internal pull-ups + pinConfig[pin] = INPUT; + } + break; + case OUTPUT: + if (IS_PIN_DIGITAL(pin)) { + digitalWrite(PIN_TO_DIGITAL(pin), LOW); // disable PWM + pinMode(PIN_TO_DIGITAL(pin), OUTPUT); + pinConfig[pin] = OUTPUT; + } + break; + case PWM: + if (IS_PIN_PWM(pin)) { + pinMode(PIN_TO_PWM(pin), OUTPUT); + analogWrite(PIN_TO_PWM(pin), 0); + pinConfig[pin] = PWM; + } + break; + case SERVO: + if (IS_PIN_SERVO(pin)) { + pinConfig[pin] = SERVO; + if (!servos[PIN_TO_SERVO(pin)].attached()) { + servos[PIN_TO_SERVO(pin)].attach(PIN_TO_DIGITAL(pin)); + } + } + break; + case I2C: + if (IS_PIN_I2C(pin)) { + // mark the pin as i2c + // the user must call I2C_CONFIG to enable I2C for a device + pinConfig[pin] = I2C; + } + break; + default: + Firmata.sendString("Unknown pin mode"); // TODO: put error msgs in EEPROM + } + // TODO: save status to EEPROM here, if changed +} + +void analogWriteCallback(byte pin, int value) +{ + if (pin < TOTAL_PINS) { + switch(pinConfig[pin]) { + case SERVO: + if (IS_PIN_SERVO(pin)) + servos[PIN_TO_SERVO(pin)].write(value); + pinState[pin] = value; + break; + case PWM: + if (IS_PIN_PWM(pin)) + analogWrite(PIN_TO_PWM(pin), value); + pinState[pin] = value; + break; + } + } +} + +void digitalWriteCallback(byte port, int value) +{ + byte pin, lastPin, mask=1, pinWriteMask=0; + + if (port < TOTAL_PORTS) { + // create a mask of the pins on this port that are writable. + lastPin = port*8+8; + if (lastPin > TOTAL_PINS) lastPin = TOTAL_PINS; + for (pin=port*8; pin < lastPin; pin++) { + // do not disturb non-digital pins (eg, Rx & Tx) + if (IS_PIN_DIGITAL(pin)) { + // only write to OUTPUT and INPUT (enables pullup) + // do not touch pins in PWM, ANALOG, SERVO or other modes + if (pinConfig[pin] == OUTPUT || pinConfig[pin] == INPUT) { + pinWriteMask |= mask; + pinState[pin] = ((byte)value & mask) ? 1 : 0; + } + } + mask = mask << 1; + } + writePort(port, (byte)value, pinWriteMask); + } +} + + +// ----------------------------------------------------------------------------- +/* sets bits in a bit array (int) to toggle the reporting of the analogIns + */ +//void FirmataClass::setAnalogPinReporting(byte pin, byte state) { +//} +void reportAnalogCallback(byte analogPin, int value) +{ + if (analogPin < TOTAL_ANALOG_PINS) { + if(value == 0) { + analogInputsToReport = analogInputsToReport &~ (1 << analogPin); + } else { + analogInputsToReport = analogInputsToReport | (1 << analogPin); + } + } + // TODO: save status to EEPROM here, if changed +} + +void reportDigitalCallback(byte port, int value) +{ + if (port < TOTAL_PORTS) { + reportPINs[port] = (byte)value; + } + // do not disable analog reporting on these 8 pins, to allow some + // pins used for digital, others analog. Instead, allow both types + // of reporting to be enabled, but check if the pin is configured + // as analog when sampling the analog inputs. Likewise, while + // scanning digital pins, portConfigInputs will mask off values from any + // pins configured as analog +} + +/*============================================================================== + * SYSEX-BASED commands + *============================================================================*/ + +void sysexCallback(byte command, byte argc, byte *argv) +{ + byte mode; + byte slaveAddress; + byte slaveRegister; + byte data; + unsigned int delayTime; + + switch(command) { + case I2C_REQUEST: + mode = argv[1] & I2C_READ_WRITE_MODE_MASK; + if (argv[1] & I2C_10BIT_ADDRESS_MODE_MASK) { + Firmata.sendString("10-bit addressing mode is not yet supported"); + return; + } + else { + slaveAddress = argv[0]; + } + + switch(mode) { + case I2C_WRITE: + Wire.beginTransmission(slaveAddress); + for (byte i = 2; i < argc; i += 2) { + data = argv[i] + (argv[i + 1] << 7); + #if ARDUINO >= 100 + Wire.write(data); + #else + Wire.send(data); + #endif + } + Wire.endTransmission(); + delayMicroseconds(70); + break; + case I2C_READ: + if (argc == 6) { + // a slave register is specified + slaveRegister = argv[2] + (argv[3] << 7); + data = argv[4] + (argv[5] << 7); // bytes to read + readAndReportData(slaveAddress, (int)slaveRegister, data); + } + else { + // a slave register is NOT specified + data = argv[2] + (argv[3] << 7); // bytes to read + readAndReportData(slaveAddress, (int)REGISTER_NOT_SPECIFIED, data); + } + break; + case I2C_READ_CONTINUOUSLY: + if ((queryIndex + 1) >= MAX_QUERIES) { + // too many queries, just ignore + Firmata.sendString("too many queries"); + break; + } + queryIndex++; + query[queryIndex].addr = slaveAddress; + query[queryIndex].reg = argv[2] + (argv[3] << 7); + query[queryIndex].bytes = argv[4] + (argv[5] << 7); + break; + case I2C_STOP_READING: + byte queryIndexToSkip; + // if read continuous mode is enabled for only 1 i2c device, disable + // read continuous reporting for that device + if (queryIndex <= 0) { + queryIndex = -1; + } else { + // if read continuous mode is enabled for multiple devices, + // determine which device to stop reading and remove it's data from + // the array, shifiting other array data to fill the space + for (byte i = 0; i < queryIndex + 1; i++) { + if (query[i].addr = slaveAddress) { + queryIndexToSkip = i; + break; + } + } + + for (byte i = queryIndexToSkip; i<queryIndex + 1; i++) { + if (i < MAX_QUERIES) { + query[i].addr = query[i+1].addr; + query[i].reg = query[i+1].addr; + query[i].bytes = query[i+1].bytes; + } + } + queryIndex--; + } + break; + default: + break; + } + break; + case I2C_CONFIG: + delayTime = (argv[0] + (argv[1] << 7)); + + if(delayTime > 0) { + i2cReadDelayTime = delayTime; + } + + if (!isI2CEnabled) { + enableI2CPins(); + } + + break; + case SERVO_CONFIG: + if(argc > 4) { + // these vars are here for clarity, they'll optimized away by the compiler + byte pin = argv[0]; + int minPulse = argv[1] + (argv[2] << 7); + int maxPulse = argv[3] + (argv[4] << 7); + + if (IS_PIN_SERVO(pin)) { + if (servos[PIN_TO_SERVO(pin)].attached()) + servos[PIN_TO_SERVO(pin)].detach(); + servos[PIN_TO_SERVO(pin)].attach(PIN_TO_DIGITAL(pin), minPulse, maxPulse); + setPinModeCallback(pin, SERVO); + } + } + break; + case SAMPLING_INTERVAL: + if (argc > 1) { + samplingInterval = argv[0] + (argv[1] << 7); + if (samplingInterval < MINIMUM_SAMPLING_INTERVAL) { + samplingInterval = MINIMUM_SAMPLING_INTERVAL; + } + } else { + //Firmata.sendString("Not enough data"); + } + break; + case EXTENDED_ANALOG: + if (argc > 1) { + int val = argv[1]; + if (argc > 2) val |= (argv[2] << 7); + if (argc > 3) val |= (argv[3] << 14); + analogWriteCallback(argv[0], val); + } + break; + case CAPABILITY_QUERY: + Serial.write(START_SYSEX); + Serial.write(CAPABILITY_RESPONSE); + for (byte pin=0; pin < TOTAL_PINS; pin++) { + if (IS_PIN_DIGITAL(pin)) { + Serial.write((byte)INPUT); + Serial.write(1); + Serial.write((byte)OUTPUT); + Serial.write(1); + } + if (IS_PIN_ANALOG(pin)) { + Serial.write(ANALOG); + Serial.write(10); + } + if (IS_PIN_PWM(pin)) { + Serial.write(PWM); + Serial.write(8); + } + if (IS_PIN_SERVO(pin)) { + Serial.write(SERVO); + Serial.write(14); + } + if (IS_PIN_I2C(pin)) { + Serial.write(I2C); + Serial.write(1); // to do: determine appropriate value + } + Serial.write(127); + } + Serial.write(END_SYSEX); + break; + case PIN_STATE_QUERY: + if (argc > 0) { + byte pin=argv[0]; + Serial.write(START_SYSEX); + Serial.write(PIN_STATE_RESPONSE); + Serial.write(pin); + if (pin < TOTAL_PINS) { + Serial.write((byte)pinConfig[pin]); + Serial.write((byte)pinState[pin] & 0x7F); + if (pinState[pin] & 0xFF80) Serial.write((byte)(pinState[pin] >> 7) & 0x7F); + if (pinState[pin] & 0xC000) Serial.write((byte)(pinState[pin] >> 14) & 0x7F); + } + Serial.write(END_SYSEX); + } + break; + case ANALOG_MAPPING_QUERY: + Serial.write(START_SYSEX); + Serial.write(ANALOG_MAPPING_RESPONSE); + for (byte pin=0; pin < TOTAL_PINS; pin++) { + Serial.write(IS_PIN_ANALOG(pin) ? PIN_TO_ANALOG(pin) : 127); + } + Serial.write(END_SYSEX); + break; + } +} + +void enableI2CPins() +{ + byte i; + // is there a faster way to do this? would probaby require importing + // Arduino.h to get SCL and SDA pins + for (i=0; i < TOTAL_PINS; i++) { + if(IS_PIN_I2C(i)) { + // mark pins as i2c so they are ignore in non i2c data requests + setPinModeCallback(i, I2C); + } + } + + isI2CEnabled = true; + + // is there enough time before the first I2C request to call this here? + Wire.begin(); +} + +/* disable the i2c pins so they can be used for other functions */ +void disableI2CPins() { + isI2CEnabled = false; + // disable read continuous mode for all devices + queryIndex = -1; + // uncomment the following if or when the end() method is added to Wire library + // Wire.end(); +} + +/*============================================================================== + * SETUP() + *============================================================================*/ + +void systemResetCallback() +{ + // initialize a defalt state + // TODO: option to load config from EEPROM instead of default + if (isI2CEnabled) { + disableI2CPins(); + } + for (byte i=0; i < TOTAL_PORTS; i++) { + reportPINs[i] = false; // by default, reporting off + portConfigInputs[i] = 0; // until activated + previousPINs[i] = 0; + } + // pins with analog capability default to analog input + // otherwise, pins default to digital output + for (byte i=0; i < TOTAL_PINS; i++) { + if (IS_PIN_ANALOG(i)) { + // turns off pullup, configures everything + setPinModeCallback(i, ANALOG); + } else { + // sets the output to 0, configures portConfigInputs + setPinModeCallback(i, OUTPUT); + } + } + // by default, do not report any analog inputs + analogInputsToReport = 0; + + /* send digital inputs to set the initial state on the host computer, + * since once in the loop(), this firmware will only send on change */ + /* + TODO: this can never execute, since no pins default to digital input + but it will be needed when/if we support EEPROM stored config + for (byte i=0; i < TOTAL_PORTS; i++) { + outputPort(i, readPort(i, portConfigInputs[i]), true); + } + */ +} + +void setup() +{ + Firmata.setFirmwareVersion(FIRMATA_MAJOR_VERSION, FIRMATA_MINOR_VERSION); + + Firmata.attach(ANALOG_MESSAGE, analogWriteCallback); + Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback); + Firmata.attach(REPORT_ANALOG, reportAnalogCallback); + Firmata.attach(REPORT_DIGITAL, reportDigitalCallback); + Firmata.attach(SET_PIN_MODE, setPinModeCallback); + Firmata.attach(START_SYSEX, sysexCallback); + Firmata.attach(SYSTEM_RESET, systemResetCallback); + + Firmata.begin(57600); + systemResetCallback(); // reset to default config +} + +/*============================================================================== + * LOOP() + *============================================================================*/ +void loop() +{ + byte pin, analogPin; + + /* DIGITALREAD - as fast as possible, check for changes and output them to the + * FTDI buffer using Serial.print() */ + checkDigitalInputs(); + + /* SERIALREAD - processing incoming messagse as soon as possible, while still + * checking digital inputs. */ + while(Firmata.available()) + Firmata.processInput(); + + /* SEND FTDI WRITE BUFFER - make sure that the FTDI buffer doesn't go over + * 60 bytes. use a timer to sending an event character every 4 ms to + * trigger the buffer to dump. */ + + currentMillis = millis(); + if (currentMillis - previousMillis > samplingInterval) { + previousMillis += samplingInterval; + /* ANALOGREAD - do all analogReads() at the configured sampling interval */ + for(pin=0; pin<TOTAL_PINS; pin++) { + if (IS_PIN_ANALOG(pin) && pinConfig[pin] == ANALOG) { + analogPin = PIN_TO_ANALOG(pin); + if (analogInputsToReport & (1 << analogPin)) { + Firmata.sendAnalog(analogPin, analogRead(analogPin)); + } + } + } + // report i2c data for all device with read continuous mode enabled + if (queryIndex > -1) { + for (byte i = 0; i < queryIndex + 1; i++) { + readAndReportData(query[i].addr, query[i].reg, query[i].bytes); + } + } + } +} |