Arduino IR Obstacle Sensor: Blink LED on Detect
Build an Arduino IR obstacle sensor trigger that blinks the onboard LED and prints Serial alerts using a simple HIGH/LOW output module...
Arduino 24MHz Logic Analyzer: Decode I2C SPI UART
Capture and decode Arduino I2C traffic with a 24MHz USB logic analyzer in PulseView, so you can verify SPI, UART, and sensor...
Arduino PCF8574: Add 8 GPIO Pins Over I2C
Build an Arduino PCF8574 I2C GPIO expander project to drive 8 LEDs using only SDA and SCL, freeing pins for bigger builds...
Arduino Pro Mini CP2102: Flash and read serial
Flash an Arduino Pro Mini with a CP2102 USB-to-TTL adapter, then read Serial output for fast debugging on USB-less boards, with parts...
Arduino TXS0108E: Safe 3.3V to 5V Level Shifting
Build a safe 3.3 V to 5 V interface using an Arduino and the TXS0108E 8-channel level shifter, protecting 3.3 V devices...
Arduino MAX3421E USB Host Shield: Read USB Barcodes
Build an Arduino MAX3421E USB Host Shield project that reads a USB HID barcode scanner and prints each scan to Serial for...
Arduino Nano MG995 Servo: High-Torque Position Control
Build Arduino Nano control for an MG995 high-torque metal-gear servo using an external 5V supply and shared ground for stable positioning from...
Arduino Nano SG92R Servo: Smooth 0-180 Sweep
Build an Arduino Nano SG92R servo sweep (0 to 180 degrees) in minutes using the Servo library, with wiring guidance and reliable...
Arduino RC522: Read RFID Card UIDs via SPI
Build an Arduino RC522 RFID reader project that reads MIFARE card and key fob UIDs over SPI, with simple wiring and Serial...
Arduino SSD1306 OLED: Display Text and Graphics
Wire an Arduino to an SSD1306 0.96 inch I2C OLED and upload a simple sketch to display text and graphics on a...
Arduino L298N Motor Driver: Control DC Motor Speed
Build an Arduino Nano project with an L298N motor driver to run a DC motor forward, reverse, and at variable speed using...
Arduino Nano MPU6050: Stream Accel and Gyro Data
Build an Arduino Nano + MPU6050 IMU reader that streams live accelerometer and gyroscope data over Serial for motion projects, with parts...