You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
1.9 KiB
Plaintext
72 lines
1.9 KiB
Plaintext
15 years ago
|
/*
|
||
|
|
* 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];
|
||
|
|
byte previousPINs[TOTAL_PORTS];
|
||
|
|
|
||
|
|
/* timer variables */
|
||
|
|
unsigned long currentMillis; // store the current value from millis()
|
||
|
|
unsigned long nextExecuteMillis; // 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()
|
||
|
|
{
|
||
|
|
Firmata.setFirmwareVersion(0, 1);
|
||
|
|
|
||
|
|
for(pin = 0; pin < TOTAL_DIGITAL_PINS; pin++) {
|
||
|
|
pinMode(pin, INPUT);
|
||
|
|
}
|
||
|
|
|
||
|
|
portStatus[0] = B00000011; // ignore Tx/RX pins
|
||
|
|
portStatus[1] = B11000000; // ignore 14/15 pins
|
||
|
|
portStatus[2] = B00000000;
|
||
|
|
|
||
|
|
Firmata.begin(57600);
|
||
|
|
}
|
||
|
|
|
||
|
|
void loop()
|
||
|
|
{
|
||
|
|
sendPort(0, PIND);
|
||
|
|
sendPort(1, PINB);
|
||
|
|
sendPort(2, PINC);
|
||
|
|
/* 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 > nextExecuteMillis) {
|
||
|
|
nextExecuteMillis = currentMillis + 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;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|