Tinkercad Pid Control

This is where Tinkercad shines. Run the simulation and open the . Change the setpoint pot—watch the motor struggle.

double computePID(double setp, double inp, double dt) double error = setp - inp;

A classic PID scenario is controlling the speed of a DC motor to match a set point. Required Components in Tinkercad: Arduino Uno R3 DC Motor (Motor)

) as the difference between a desired and a measured process variable . tinkercad pid control

If the system responds too slowly or swings wildly past the target, your PID coefficients need tuning. A classic manual tuning strategy involves these steps: Set Kicap K sub i Kdcap K sub d to 0 . Increase Proportional ( Kpcap K sub p ): Gradually increase Kpcap K sub p

The output is the sum: [ u(t) = K_p e(t) + K_i \int e(t) dt + K_d \fracde(t)dt ]

Use a second potentiometer (representing the actual speed sensor/encoder) connected to another analog pin (e.g., A1). PWM Control: This is where Tinkercad shines

What are you planning to control? (e.g., a cruise control motor, a heater, a self-balancing robot)

double temp_state = 20.0; // ambient start const double ambient = 20.0; const double heatingRate = 0.08; // °C per sec at full power const double coolingTau = 40.0; // larger -> slower cooling

(Pulse Width Modulation) signal to keep the motor spinning at your target speed, even if you apply physical resistance. Temperature Regulation : Build a system using a TMP36 sensor double computePID(double setp, double inp, double dt) double

Increase Kd to "dampen" the oscillations. This acts like a shock absorber, smoothing out the movement.

What are you trying to control? (e.g., motor speed, distance with an ultrasonic sensor, temperature)

Speed Sensor (simulated via a tachometer or an analog reading) Circuit Setup: Connect the Arduino PWM pins to the L293D input pins. Connect the DC motor to the L293D output pins. Connect the potentiometer to an analog input pin (A0). 4. Coding the PID Controller in Arduino/Tinkercad

Open the panel in Tinkercad, switch the dropdown from "Blocks" to "Text" , and paste the following program: