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not_my_balls |
I FOUND OUR CODE ONLINE
Nov 18 2007, 3:44 PM EST
arduino: /* ReadMultiplexedSensorsAndSendMIDI * ------------ * * Reads 4 16 channel Multiplexers and sends the values * * Created 12 December 2005 * copyleft 2005 Stephen Williams <http://fluidforms.at> <http://algodes.com> * */ #define CONTROLpin1 2 #define CONTROLpin2 3 #define CONTROLpin3 4 #define CONTROLpin4 5 // Variables: char sensorValueToSend = 0; // Value of the sensor int actualSensorValue = 0; // value from the analog input // Some error chacking would be good here. //If the values exceede 128 the will not fit in one byte. void sendCommand(char command, char sensorID, char value) { serialWrite(command); serialWrite(sensorID); serialWrite(value); } void setup() { // set the states of the I/O pins: pinMode(LEDpin, OUTPUT); pinMode(CONTROLpin1, OUTPUT); pinMode(CONTROLpin2, OUTPUT); pinMode(CONTROLpin3, OUTPUT); pinMode(CONTROLpin4, OUTPUT); beginSerial(19200); } void loop() { int i; int j; for (i=0; i <16; i++) { // set control pins on the multiplexers digitalWrite(CONTROLpin1, (i&15)>>3);//bit4 digitalWrite(CONTROLpin2, (i&7)>>2);//bit3 digitalWrite(CONTROLpin3, (i&3)>>1);//bit2 digitalWrite(CONTROLpin4, (i&1) );//bit1 // read the analogue inputs and send the values of the sensors. for(j=0; j<4; j++){ actualSensorValue = analogRead(j); // You will have to adjust this line so that can send the // sensor value in one byte. sensorValueToSend = actualSensorValue / 15; sendCommand(0x90, i+16*j, sensorValueToSend); } // if you uncomment this line you can check the control pins // of the multiplexers with your multimeter. //delay(500); } } Do you find this valuable?
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