RC522 RFID Reader Module Kit 13.56MHz SPI for Arduino Raspberry Pi PIC

RC522 RFID Kit 13.56 Mhz including Tag and Card for ESP32 and Arduino

RFID Keyfob (PACK OF 5) – Sail Shaped, Transparent Blue, EM4102 (125kHz)

433MHz RF Transmitter and Receiver Module Link Kit for Arduino Raspberry PI UK

433MHz RF Transmitter & Receiver Wireless Module kit Arduino/Pi/ARM

Soil Moisture Hygrometer Humidity Sensor Module for Arduino Raspberry PI UK

Rain Water Snow Raindrops Detection Sensor Module for Arduino Raspberry PI UK

Obstacle Avoidance IR Sensor Infrared Module for Arduino Raspberry PI UK