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
GND ---- Ground
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 |
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