2.4GHz ISM band, SPI, 250kbps/1Mbps/2Mbps, 100m range
| Range | up to 100m |
|---|---|
| Voltage | 1.9-3.6V |
| Data Rate | 250kbps/1/2Mbps |
| Frequency | 2.4 GHz |
| Interface | SPI |
The NRF24L01 enables wireless communication between Arduino/ESP32 boards over distances up to 100 metres — without Wi-Fi, Bluetooth, or internet infrastructure. Two modules communicate directly, making it ideal for remote sensors, wireless controls, and mesh sensor networks.
The NRF24L01 runs on 3.3V logic. Connecting the data lines directly to a 5V Arduino can damage the module. Use a 3.3V supply for VCC and either a logic level shifter or the 3.3V pin on your Arduino for data lines. Power supply decoupling (10µF capacitor across VCC/GND) is strongly recommended for stable operation.
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