User manual
IDUINO for maker’s life 
www.openplatform.cc 
Description 
This wireless module board adapts high-performance Nordic VLSI NRF905 radio chip, 
the maximum transmission data rates up to 50Kbps with GFSK, sensitivity to-100dBm, 
high  reliability,  it  is  widely  used  in  various  occasions,  short-range  wireless 
communications (such as wireless meter reading, industrial remote control, low-
power handheld equipment, etc.) 
Features: 
  Operating voltage: 1.9 ~ 3.6V, ( 3.3V is recommended) 
  Work on the 433/868MHz   
  The maximum operating rate of 50kbps, support GFSK modulation 
  A lower current consumption   
  Programmable control of output power, for all the support frequencies of up 
to +10 dBm 
  Standard DIP spacing interfaces for embedded applications 
  Transmission  Distance:  open  to  the  actual  transmission  distance  200-300 
meters  (depending  on  the  specific  situation  of  the  environment  and 
communication baud rate settings, etc.) 
  Module Size: 32mm * 19mm (the size of non-SMA head and antenna) 








