Wireless NRF905 Transmitter Module (With Antenna)

This wireless module board adapts the high-performance Nordic VLSI NRF905 radio chip. With GFSK, it provides maximum transmission data up to 50Kbps, sensitivity up to -100dBm, high reliability.

It is used in various hobby, robotics, Arduino projects, home automation, industrial systems and remote control systems.

Features:

Operating voltage: 1.9 ~ 3.6V, (3.3V recommended)
Operate in the 433/868/915 MHz band
50kbps maximum operating speed, supports GFSK modulation
A lower current consumption (RX in, 12.2mA, 433MHz)
Programmable control of output power for all support frequencies up to +10 dBm
Standard DIP spacing interfaces for embedded applications
Transmission Distance: Actual transmission between 200-300 meters (may depend on the environment and communication baud rate settings, etc.)
Module Size: 32mm*19mm (size of non-SMA head and antenna）

Pin Definitions

VCC ---- Power supply.

TXE ---- RF module mode selection.

CE ----Enable RF module to transmit and receive.

PWR ---- Power chip.

CLK ---- Output clock, split crystal oscillator full swing clock.

CD ---- Carrier detects.

AM ---- Address matched.

DR -- -- Prepare and send.

MISO ---- SPI master input slave output.

MOSI ---- SPI mater output slave input.

SCK ---- SPI clock.

CSN ---- SPI enable.

GND ---- Ground

Set different frequency values for different countries. nrf905.write_config (US); Just change the parameter of your country or region in the function.

Country	Band
USA	908.42Mhz
Europe	868.42Mhz
Africa	868.42Mhz
China	868.42Mhz
HK	919.82Mhz
Japan	853.42Mhz
Australia	921.42Mhz
New Zealand	921.42Mhz
Brazil	921.42Mhz
Russia	896Mhz

NRF905 Arduino Library