SPI Tutorials

Build an Arduino UNO Joystick Shield V1.A controller that reads every input, then works as a USB gamepad or nRF24L01 ...

Build an Arduino Nano MAX6675 K-type thermocouple reader with OLED display and optional over-temp relay cutoff for sa...

Build a Raspberry Pi Pico 2W + 2.13 inch e-paper HAT Wi-Fi name badge that stays readable with near-zero idle power, ...

Compare Arduino LoRa (RFM98/Ra-02) vs NRF24L01+ to pick the right wireless radio for range, data rate, and battery li...

Build an Arduino Nano INMP441 audio spectrum visualizer that drives a MAX7219 32x8 LED matrix using FFT, using parts ...

Build an Arduino Nano RC522 RFID cat door that unlocks a servo latch only for allowed tags, giving secure pet access ...

Build an ESP32 Wi-Fi weather station with a BME280 sensor and ST7735 TFT display to show indoor readings plus OpenWea...

Build an Arduino MAX7219 dot matrix scrolling LED marquee for readable signs and status messages using only 3 control...

Build an Arduino Nano RC522 RFID smart door lock with an OLED status screen and servo latch action, using simple wiri...

Capture and decode Arduino I2C traffic with a 24MHz USB logic analyzer in PulseView, so you can verify SPI, UART, and...

Build a safe 3.3 V to 5 V interface using an Arduino and the TXS0108E 8-channel level shifter, protecting 3.3 V devic...

Build an Arduino MAX3421E USB Host Shield project that reads a USB HID barcode scanner and prints each scan to Serial...