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| -rw-r--r-- | Pd_firmware/Pd_firmware.pde | 111 | ||||
| -rw-r--r-- | README | 4 |
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diff --git a/Pd_firmware/Pd_firmware.pde b/Pd_firmware/Pd_firmware.pde new file mode 100644 index 0000000..7e0becd --- /dev/null +++ b/Pd_firmware/Pd_firmware.pde @@ -0,0 +1,111 @@ +/* Pd_firmware + * ------------------ + * + * + * It was designed to work with the Pd patch of the same + * name in: Help -> Browser -> examples -> hardware + * + * (cleft) 2006 Hans-Christoph Steiner + * @author: Hans-Christoph Steiner + * @date: 2006-03-10 + * @location: Polytechnic University, Brooklyn, New York, USA + */ + +/* + * Pduino protocol + * =============== + * data: 0-127 control: 128-255 + * + * Pd->Arduino commands + * -------------------- + * 150 - next byte sets PWM0 value + * 151 - next byte sets PWM1 value + * 152 - next byte sets PWM2 value + * 200-213 - set digital pin 0-13 to input + * 220-233 - set digital pin 0-13 to output + * + * + * Pd->Arduino byte cycle + * ---------------------- + * 0 cycle marker (255/11111111) + * 1 digitalOut 0-6 bitmask + * 2 digitalOut 7-13 bitmask + * + * Arduino->Pd byte cycle + * ---------------------- + * 0 digitalIn 0-6 bitmask + * 1 digitalIn 7-13 bitmask + * 2 analogIn0 byte0 + * 3 analogIn0 byte1 + * 4 analogIn1 byte0 + * 5 analogIn1 byte1 + * 6 analogIn2 byte0 + * 7 analogIn2 byte1 + * 8 analogIn3 byte0 + * 9 analogIn3 byte1 + * 10 analogIn4 byte0 + * 11 analogIn4 byte1 + * 12 analogIn5 byte0 + * 13 analogIn5 byte1 + * 14 cycle marker (255/11111111) + * + * + * TX RX + * ----------------------- + * + */ + +/* + * CAUTION!! Be careful with the Serial Monitor, it could freeze + * your computer with this firmware running! It outputs data + * without a delay() so its very fast. + */ + + +byte i; + +// this int serves as an array of bits to store pin status +int digitalPinStatus; + +byte analogPin; +int analogData; + +void outputDigital(byte startPin) { + byte digitalPin; + byte digitalPinBit; + byte digitalOutputByte; + byte digitalData; + for(i=0;i<7;++i) + { + digitalPin = i+startPin; + digitalPinBit = 2^digitalPin; + // only read the pin if its set to input + if(digitalPinStatus & digitalPinBit) + digitalData = digitalRead(digitalPin); + else + digitalData = 0; + digitalOutputByte = digitalOutputByte + (2^(i+1-startPin)*digitalData); + } + printByte(digitalOutputByte); +} + +void setup() { + beginSerial(9600); +} + +void loop() { + // read all digital pins + outputDigital(0); + outputDigital(7); + /* + * get analog in + */ + analogData = analogRead(analogPin); + // these two bytes get converted back into the whole number in Pd + printByte(analogData / 32); // div by 32 for the big byte + printByte(analogData % 32); // mod by 32 for the small byte + ++analogPin; + if (analogPin > 5) analogPin = 0; + /* end with the cycle marker */ + printByte(255); +} @@ -0,0 +1,4 @@ + +The code in the examples patch are example patches that match the included examples in the Arduino package. + +Pd_firmware is a Arduino firmware where you can control everything from Pd, so you don't need to program in Arduino.
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