ESP32-C3 Projects

Measure distance in real time with an HC-SR04 ultrasonic sensor and an ESP32-C3 microcontroller. Trigger a buzzer and warning LED when obstacles get closer than 15 cm, while plotting live distance curves on the Serial Plotter.

Read 3-axis motion and tilt from an MPU6050 accelerometer and change an RGB LED's color based on how the sensor tilts. Learn how I2C communication and motion sensors work on the ESP32-C3.

Turn an analog potentiometer knob to steer an SG90 micro servo smoothly from 0 to 180 degrees using an ESP32-C3. Learn how 12-bit analog converters read physical dial positions and generate precision 50Hz motor pulses.

Control a 16-LED NeoPixel ring with an ESP32-C3. Turn a knob to change colors smoothly across the rainbow, and press a button to switch between solid colors, spinning rainbow waves, and a gentle breathing glow.

Read ambient room temperature with an NTC thermistor and display live Celsius and Fahrenheit readings on a 16x2 LCD screen using an ESP32-C3 microcontroller.

Connect a blue LED and a resistor to an ESP32-C3 DevKit to make it blink once per second while streaming live messages to the serial console. Learn how 3.3V digital outputs work on a modern 32-bit RISC-V microcontroller.