Hi there, I have done a fair amount of research but I can’t seem to find a solution to this, I hope you can help!
I have an Arduino Uno taking sensor readings, and I am trying to relay this information through a HC-06 bluetooth module through to Max MSP. My Mac is connecting to the HC-06 fine, and it is given as an option in Max’s list of serial ports. I’m using the ever popular “Arduino2Max_Nov2012” Max Patch and Arduino code. The readings are 0 for all analogue and digital pins.
I have adjusted the code to match the HC-06’s baud rate of 9600 in the Arduino code, and in the Max patch the serial object has been adjusted to “serial a 9600 8 1 0” instead of “serial a 115200 8 1 0.” Here is the Arduino code:
int x = 0; // a place to hold pin values
int ledpin = 13;
void setup()
{
Serial.begin(9600); // 115200 is the default Arduino Bluetooth speed - changed to 9600 here
digitalWrite(13,HIGH); ///startup blink
delay(600);
digitalWrite(13,LOW);
pinMode(13,INPUT);
}
void loop()
{
if (Serial.available() > 0){ // Check serial buffer for characters
if (Serial.read() == 'r') { // If an 'r' is received then read the pins
for (int pin= 0; pin<=5; pin++){ // Read and send analog pins 0-5
x = analogRead(pin);
sendValue (x);
}
for (int pin= 2; pin<=13; pin++){ // Read and send digital pins 2-13
x = digitalRead(pin);
sendValue (x);
}
Serial.println(); // Send a carriage returnt to mark end of pin data.
delay (5); // add a delay to prevent crashing/overloading of the serial port
}
}
}
void sendValue (int x){ // function to send the pin value followed by a "space".
Serial.print(x);
Serial.write(32);
}
I have used the same set-up (without the baud rate changes) many times successfully in the past, so I’m quite sure the problem lies in the bluetooth somewhere.
The HC-06 is RX-TX TX-RX’d to the Arduino, do I need to specify to the arduino to communicate on these pins, instead of through USB? This is what I think may be the issue.
I hope you can help me out! Thanks.