// Tinkercad PID Position Control for DC Motor double setpoint = 0; // Desired angle (0-1023 from pot) double input = 0; // Actual angle from feedback pot double output = 0; // PWM signal (-255 to 255) sent to motor double lastError = 0; double integral = 0; // PID Gains - Start with P only double Kp = 5.0; double Ki = 0.5; double Kd = 0.8;
// Proportional term double Pout = Kp * error;
// PID output double outputRaw = Pout + Iout + Dout; lastError = error;
// Time delta for derivative and integral unsigned long now = millis(); double deltaTime = (now - lastTime) / 1000.0; if (deltaTime > 0.05) { // Run PID every 50ms output = computePID(setpoint, input, deltaTime); motorDrive(output); lastTime = now;
void loop() { // Read setpoint (0 to 1023) setpoint = analogRead(A0);
// Integral term with anti-windup (clamp) integral += error * dt; double Iout = Ki * integral;