NRF 24L01 Module Without an Antenna

The NRF24L01 wireless transceiver module is a low-cost 2.4 GHz RF communication module used for wireless data transmission between microcontrollers. The version without an external antenna (PCB antenna version) is compact and suitable for short-range communication. It is commonly used with Arduino, ESP32, STM32, and other microcontroller boards for building wireless sensor networks, remote control systems, and robotics communication links.

• The NRF24L01 is a 2.4 GHz ISM band wireless transceiver module.
• This version has an inbuilt PCB antenna (no external antenna).
• It supports bidirectional communication (transmit and receive).
• Operating voltage is 3.3V (important, not 5V tolerant).
• Communication interface is SPI (Serial Peripheral Interface).