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authorCristian Maglie <c.maglie@bug.st>2012-01-04 15:14:51 +0100
committerCristian Maglie <c.maglie@bug.st>2012-01-04 15:14:51 +0100
commit8c2b5b979a75d109ae7cc306afc50d7ffe1e0366 (patch)
tree19ac8d91c7209397e7dc890b432a254ae9a7cd62 /libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino
parentbe52c95820400d48e47615232d3c38236166fad3 (diff)
Moved libraries folder inside platform folder. Now libraries and examples are searched per board/platform
Diffstat (limited to 'libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino')
-rw-r--r--libraries/Firmata/examples/SimpleDigitalFirmata/SimpleDigitalFirmata.ino72
1 files changed, 72 insertions, 0 deletions
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();
+ }
+}