Arduino Laser Diode: Build a Tripwire Alarm
Build an Arduino laser tripwire alarm using a red laser diode and an LDR to detect beam breaks and trigger a buzzer...
Arduino Nano KY-006 Buzzer: Play Melodies with tone()
Build an Arduino Nano project that drives a KY-006 passive buzzer to play real melodies with tone(), using simple wiring and note...
Arduino ILI9341 Touchscreen: Build a Touch UI
Build an Arduino touch UI with a 2.8 inch ILI9341 SPI TFT: wire it, draw on-screen buttons, and detect taps for simple...
Arduino Nano ESP-01: Add Wi-Fi with AT Commands
Add Wi-Fi to an Arduino Nano using the ESP-01 ESP8266 and AT commands over serial, then print an HTTP GET response for...
Arduino MCP2515 CAN Bus: Read raw OBD-II frames
Build an Arduino MCP2515 CAN Bus reader to sniff raw OBD-II frames from your car, giving you a low-cost starting point for...
Arduino VL53L0X: Millimetre Distance Over Serial
Build an Arduino Nano + VL53L0X ToF distance reader that streams millimetre measurements over Serial for accurate short-range sensing with ShillehTek.
Arduino MQ-135: Print Indoor Air Quality Readings
Build an Arduino MQ-135 indoor air monitor that prints relative air-quality readings to Serial, so you can track changes over time with...
Arduino Nano TCS3200: Read RGB Values in Serial
Build an Arduino Nano project with the TCS3200 color sensor to read RGB values in Serial for quick color detection and calibration,...
Arduino AD8232 ECG Module: Plot a Live ECG Waveform
Build an Arduino AD8232 ECG monitor that streams a live ECG waveform to Serial Plotter for fast bio-signal prototyping with parts from...
Arduino BH1750: Read Real Lux Over Serial
Build an Arduino Nano lux meter with the BH1750 (GY-302) sensor and read real light intensity over I2C in the Serial Monitor...
Arduino 433 MHz RF: Decode and Replay Remote Codes
Build an Arduino 433 MHz RF decoder and replay sketch to control remote mains sockets, capturing codes once and automating on and...
Arduino Pro Micro Push Buttons: USB HID Macro Pad
Build an Arduino Pro Micro push-button USB HID macro pad that sends real key presses (F13 to F16) for custom shortcuts, with...