RedBoard To nRF24L01+
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The nRF24L01+ pins function as follows:
- GND – Ground
- IRQ – Interrupt pin. This pin is active LOW.
- MISO – 3.3V-5V tolerant SPI slave output.
- MOSI – 3.3V-5V tolerant SPI slave input.
- SCK – 3.3V-5V tolerant SPI clock.
- CSN – 3.3V-5V tolerant SPI chip select.
- CE – 3.3V-5V tolerant chip enable. This pin toggles the nRF24L01+ IC between transmit (TX), receive (RX), standby, and power-down mode.
- VCC – This is VRAW and is regulated on-board down to 3.3V for the proper functionality of the nRF24L01+. The voltage range on this pin is 3.3V-7V.
RedBoard → nRF24L01+
- 5V → VCC
- GND → GND
- D8 → IRQ
- D9 → CE
- D10 → CSN
- D11 → MOSI
- D12 → MISO
- D13 → SCK
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Arduino