nRF905 con Arduino

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https://github.com/zkemble/nRF905

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nRF905 ATmega48/88/168/328 Arduino Uno Description
VCC 3.3V 3.3V Power (3.3V)
CE D7 (13) 7 Standby – High = TX/RX mode, Low = standby
TXE B1 (15) 9 TX or RX mode – High = TX, Low = RX
PWR B0 (14) 8 Power up – High = on, Low = off
CD D4 (6) 4 Carrier detect – High when a signal is detected, for collision avoidance
AM D2 (4) 2 Address Match – High when receiving a packet that has the same address as the one set for this device, optional since state is stored in register, if interrupts are used (default) then this pin must be connected
DR D3 (5) 3 Data Ready – High when finished transmitting/High when new data received, optional since state is stored in register, if interrupts are used (default) then this pin must be connected
SO B4 (18) 12 SPI MISO (Mega pin 50)
SI B3 (17) 11 SPI MOSI (Mega pin 51)
SCK B5 (19) 13 SPI SCK (Mega pin 52)
CSN B2 (16) 10 SPI SS
GND GND GND Ground

Esquema de conexión:

Divisor de voltaje:

Referencias:

nRF905 AVR/Arduino Library/Driver

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