Tinkercad Pid Control -

Let’s build the classic PID use case: controlling the angular position of a DC motor with a potentiometer as the setpoint.

Tinkercad’s built-in Serial Plotter (Tools → Serial Plotter) is invaluable. Send setpoint, input, and output as space-separated values. You will see:

PID (Proportional-Integral-Derivative) control in Tinkercad allows you to simulate precise systems—like maintaining a motor's speed or position—without physical hardware. 🛠️ Project Components

To build a PID controller in Tinkercad, you typically need these core items: Arduino Uno: The "brain" that runs the PID math.

DC Motor with Encoder: The encoder provides feedback (actual speed/position) back to the Arduino.

L293D or L298N Motor Driver: Allows the low-power Arduino to control high-power motor pulses. tinkercad pid control

Potentiometer: Acts as your Setpoint (the desired target value).

Oscilloscope (optional): Used to visualize the PWM signal and system stability. 📝 The PID Report Structure 1. Objective

Design a closed-loop system where the motor automatically corrects its behavior to match a user-defined target, even when external resistance is applied. 2. PID Theory Applied

Proportional (P): Corrects based on the Current Error (Target - Actual). If the error is large, the motor gets a large boost.

Integral (I): Corrects based on Past Error. It "sums up" small errors over time to push the motor toward the exact target if P is not enough. Let’s build the classic PID use case: controlling

Derivative (D): Predicts Future Error. It slows down the motor as it approaches the target to prevent "overshooting" or bouncing. 3. Tinkercad Wiring Guide Power: Connect Arduino 5V and GND to the breadboard rails.

Motor Driver: Bridge the L293D across the center groove. Connect its power pins to the Arduino and enable pins to PWM pins (e.g., D9, D10).

Encoder: Connect Phase A and Phase B to Arduino Interrupt pins (D2 and D3) to accurately count rotations. Setpoint: Connect the potentiometer center pin to A0. 💻 Sample Arduino PID Code

Below is a simplified code structure for a Tinkercad PID simulation:

float Kp = 1.0, Ki = 0.5, Kd = 0.1; // Tuning constants float error, lastError, integral, derivative; int targetPos, currentPos; void setup() pinMode(9, OUTPUT); // PWM Motor Pin attachInterrupt(0, updateEncoder, RISING); // Pin 2 for feedback void loop() targetPos = analogRead(A0); // Desired target from Potentiometer error = targetPos - currentPos; integral += error; derivative = error - lastError; float output = (Kp * error) + (Ki * integral) + (Kd * derivative); analogWrite(9, constrain(output, 0, 255)); // Adjust motor speed lastError = error; void updateEncoder() currentPos++; // Real-time feedback from motor encoder Use code with caution. Copied to clipboard 📈 Analysis & Results L293D or L298N Motor Driver: Allows the low-power

Under-damped: The motor oscillates back and forth before stopping. (Needs more Kd).

Steady-State Error: The motor stops just before reaching the target. (Needs more Ki).

Success Criteria: The motor reaches the target quickly with minimal "bounce". If you'd like to refine this report, please tell me: Is this for a school project or a personal hobby? Are you controlling speed (RPM) or position (angle)?

I can then provide a more detailed tuning guide for your specific setup. Basics of Arduino (TINKERCAD)