2/10/2024 0 Comments Arduino mega 2560 rf24 pinout![]() ![]() NRF24l01 Transmitter connections with Arduino The IRQ pin is optional and used only when the interrupt is required. As they are used to set the module in either transmitter or receiver mode. The CSN and CE can be connected to any digital pin of Arduino. Below are the SPI pins of some popular Arduino boards: Arduino MOSI MISO SCK Arduino Uno 11 12 13 Arduino Nano 11 12 13 Arduino Mega 51 50 52 Different Arduino boards have different SPI pins. The MOSI, MISO, and the SCK are the SPI ( Serial Peripheral Interface) pins and must be connected only to the SPI pins of Arduino. But the other pins of the module are 5V tolerant and can be connected to the Arduino pins directly. Since the operating voltage of the module ranges from 1.9 to 3.6V, you can connect the VCC pin to 3.3V directly. It gives us precisely 125 possible channels with 1MHz spacing i.e, (2525 – 2400)/1 = 125 channels. This channel frequency lies in the 2.4 GHz ISM band or between 2.400 to 2.525 GHz (2400 to 2525 MHz).Įach channel occupies a bandwidth of less than 1MHz. While connecting two or more transceiver modules to communicate with each other, they need to be on the same channel. The nRF24L01 transceiver module sends and receives the data on a certain frequency called Channel. Working of the NRF24L01 transceiver Module:
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