The nRF24L01 module is a component that allows for wireless communication between two separate Arduino boards. It utilizes the NRF24 radio transceiver and, on a PCB, attaches to an antenna to create a functioning radio transceiver.
Wireless modules function as communication bridges, enabling devices to establish connections without the need for physical cables. Under wireless modules, WiFi modules are the specialized modules that connect wireless to the internet.
The nRF24L01 is a popular 2.4 GHz wireless transceiver module made by Nordic Semiconductor, often used for low-cost, short-to-medium range wireless communication between microcontrollers like Arduino boards.
📡 Key Features of the nRF24L01 Module:
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Frequency: 2.4 GHz ISM band
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Range: ~100 meters line of sight (basic module); up to 1 km with PA+LNA version and proper antennas
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Data Rate: 250 kbps, 1 Mbps, or 2 Mbps
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Power Consumption: Very low in standby; suitable for battery-powered devices
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Interface: SPI
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Multi-node support: Communicate with up to 6 other devices simultaneously
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Supply Voltage: 1.9V to 3.6V (typically powered with 3.3V)
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