diff options
author | Thibaut VIARD <thibaut.viard@atmel.com> | 2011-06-21 00:20:43 +0200 |
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committer | Thibaut VIARD <thibaut.viard@atmel.com> | 2011-06-21 00:20:43 +0200 |
commit | 0887b98f627500271b5ad8b3c4f6c7b90bc227ee (patch) | |
tree | ef8626954567ba22e392c68c8f3606416b07b5b5 /libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.pde | |
parent | 90c487402cefadb6a2aab907ab07075cbb759e34 (diff) |
Moving all AVR specific libraries to hardware/avr
Diffstat (limited to 'libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.pde')
-rw-r--r-- | libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.pde | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.pde b/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.pde new file mode 100644 index 0000000..64b566e --- /dev/null +++ b/libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.pde @@ -0,0 +1,61 @@ +/* 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)); + } + + while(Firmata.available()) { + Firmata.processInput(); + } +} |