My goal is to send two potentiometer values across from one Arduino to another. I have had trouble finding a way to do this easily with my research online, and I have had little success in accomplishing this on my own.
I tried to send the potentiometer data only when it’s value had changed, so that only one potentiometer value would be sent at a time. Unfortunately this did not work, and I need some assistance in devising a solution to this problem. Thank you in advance for your time and effort.
This is my latest attempt:
Transmitter Code:
#include <Servo.h>
int servoPin = 2;
#define TOLERANCE 6
#define TOLERANCE2 6
int servo1Pos = 0;
int servo2Pos = 0;
int potVal1 = 0;
int potVal2 = 0;
int potPin1 = 2;
int potPin2 = 3;
int prevServo1Pos = servo1Pos - 1;
int prevServo2Pos = servo2Pos - 1;
int A;
int B;
Servo servo;
void setup() {
Serial.begin(38400);
servo.attach(servoPin);
}
void loop() {
if(Serial.available() > 0){
potVal1 = analogRead(potPin1);
servo1Pos = potVal1/6;
potVal2 = analogRead(potPin2);
servo2Pos = potVal2/6;
int diffPot1 = abs(servo1Pos - prevServo1Pos);
if(diffPot1 > TOLERANCE){
Serial.write(A);
prevServo1Pos = servo1Pos;
//Serial.println(“Servo Pos 1 Sent”);
//Serial.println(servo2Pos);
}
int diffPot2 = abs(servo2Pos - prevServo2Pos);
if(diffPot2 > TOLERANCE2){
Serial.write(B);
prevServo2Pos = servo2Pos;
//Serial.println(“Servo Pos 2 Sent”);
//Serial.println(servo2Pos);
}
}
}
Receiver Code:
#include <Servo.h>
#define TOLERANCE 6
int servo1Pos;
int servo2Pos;
int potVal= 0;
int prevServo1Pos = servo1Pos - 1;
int prevServo2Pos = servo2Pos - 1;
int A;
int B;
Servo servo;
Servo servo2;
void setup() {
Serial.begin(38400);
servo.attach(2);
servo2.attach(3);
}
void loop() {
if(Serial.available() > 0) {
A = Serial.read(); //checks if data is available
B = Serial.read();
}
Serial.println(“Servo Pos 1:”);
Serial.println(A);
Serial.println("");
Serial.println(“Servo Pos 2:”);
Serial.println(B);
delay(1000);
}