User manual

IDUINO for maker’s life

www.openplatform.cc

Pinout

nRF905 Pin

Arduino

Uno pin

connected

Pin Description

VCC

3.3V

Power(3.3V)

Standy-High=TX/RX mode,Low=standby

TXE

TX or Rx mode-High=TX,Low=RX

PWR

Power up – High = on, Low = off

Carrier detect – High when a signal is detected, for

collision avoidance

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, not used by

this library

Data Ready – High when finished transmitting/High

when new data received, optional since state is

stored in register, if interrupts are used this pin must

be connected

NOTE: On Arduino Mega change INTERRUPT_NUM

to 5 in nRF905_config.h and for Arduino Yun it

should be changed to 0.

SPI MISO

SPI MOSI

SCK

SPI SCK

CSN

SPI SS

GND

Ground

Example

The nRF905 is not 5V compatible, so some level conversions will need to be done with

the Arduino outputs, a simple 470R resistor will do the trick, only TXE, CE, PWR, SI, SCK

and CSN pins need level conversion (not CD, AM, DR and SO).

Or you can download the Library from here, which contains fully example and

annotation.

https://github.com/zkemble/nRF905