Emakefun RF-NANO

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1.2.5 ATmega328 with NRF24L01+ of communication
ATmega328 and NRF24L01+ are SPI communication, and the schematic diagram is shown in figure
1-2-1；
Figure 1-2-1
ATmega328 and NRF24L01+ chip pin connection:
ATmega328
NRF24L01+
+3.3V
VCC
GND
GND
D9
CSN
D10
CE
D11
MOSI
D12
MISO
D13
SCK
Note :ATmega328 already occupied pins D9,D10,D11,D12, and D13 cannot be reused