How to make an input from computer using processing (like a password form) and trigger pin in arduino? If you let some link to read more that would be very helpful.
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4What part are you having problems with? Sending data to Arduino from Processing or parsing data on the Arduino? Your question is very vague. Read up on arduino.cc/en/reference/serialsachleen– sachleen05/03/2014 20:55:54Commented May 3, 2014 at 20:55
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2What exactly are you trying to accomplish in your project? Please be more specific.Paul– Paul05/03/2014 22:29:25Commented May 3, 2014 at 22:29
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I want to enter a pass through processing and if its correct i want to trigger a pin.TanJay– TanJay05/04/2014 04:08:33Commented May 4, 2014 at 4:08
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Should it be the PC or the arduino which checks the password? What happens if someone uses their own pc program instead of yours?Chris Stratton– Chris Stratton05/04/2014 04:38:16Commented May 4, 2014 at 4:38
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Arduino should have to contain the passwordTanJay– TanJay05/04/2014 04:42:14Commented May 4, 2014 at 4:42
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2 Answers
On the processing side you need to communicate with the arduino using the Serial class. To set up use something like the following. It is a bit of guess work to find which of the serial ports to use
Serial myPort;
void setup() {
// List all the available serial ports:
println(Serial.list());
// Open the port you are using at the rate you want:
myPort = new Serial(this, Serial.list()[6], 9600);
myPort.buffer(2); // sets the size of the buffer, I send two bytes at a time
}
You can read a write using the Serial.read() and Serial.write() see https://processing.org/reference/libraries/serial/index.html for the processing serial references.
You need to have a look at the Serial commands: http://arduino.cc/en/Serial/read
