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The connection of this shield to your Arduino is through the SPI pins (MISO/MOSI)
infrared sensing Microwave Doppler Radar Distance Sensor SENS-RCWL-0516 infrared distance sensor temperature sensing What you can build
The RGB Addressable LED Ring WS2812 is an addressable LED product made for colorful effects
Temperature range: -55 °C ~ +125 °C
smart mirrors
4-Channel Bi-Directional Level Shifter Module - 3.3V/5V mq-135 The connection of this shieldThe 4 Channel Bi Directional Level Shifter Module is designed to safely step down 5V signals to 3. 3V and step up 3. 3V signals to 5V, making it ideal for interfacing low voltage microcontrollers like the ESP8266, ESP32, or Raspberry Pi with 5V devices like Arduino, sensors, and modules. It features four independent channels, each capable of bidirectional voltage translation, ensuring reliable communication between different logic levels. This module
