Chao at 18:59, 5 February 2020

2020-02-05T18:59:37Z

New page

== Pin Definition and Size ==
[[File:Nrf906 size.png|thumbnail|right]]
* VCC ---- Power supply.
* TXE ---- RF module mode selecting.
* CE ---- Enable RF module for transmit and receive.
* PWR ---- Power up chip.
* CLK ---- Output clock, divided crystal oscillator full swing clock.
* CD ---- Carrier detect.
* AM ---- Address matched.
* DR ---- Receive and transmit ready.
* MISO ---- SPI master input slave output.
* MOSI ---- SPI mater output slave input.
* SCK ---- SPI clock.
* CSN ---- SPI enable.
* GND ---- Ground
* GND ---- Ground

=== Usage ===
[[File:Example with arduino.png|thumbnail|right]]
There are two examples in this code, one is sending data and another is receiving data. File:Get the code [http://www.electrodragon.com/wp-content/uploads/2011/11/NRF905-for-arduino.zip here]. 
Set different bands for different countries, here is very easy to change:
nrf905.write_config(US);
Just enter your country or area as a parameter in this function. In fact, you have choices:
{| class="wikitable"
|-
! Country !! Band
|-
| US || 908.42Mhz
|-
| EU || 868.42Mhz
|-
| Africa || 868.42Mhz
|-
| China || 868.42Mhz
|-
| HK || 919.82Mhz
|-
| Japan || 853.42Mhz
|-
| Australia || 921.42Mhz
|-
| New_zealand || 921.42Mhz
|-
| Brasil || 921.42Mhz
|-
| Russia|| 896Mhz
|}

upload the two examples into two arduino boards, one for sending and other one for receiving: 
[[File:Nrf905_send_and_receive.png]] 
On the receiving end, you should be able to see: 
Hi, Arduino 0, 
Hi, Arduino 1, 
Hi, Arduino 2, 

== Documentation ==
* Nrf905 datasheet - [[File:Product Specification nRF905 v1.5.pdf]]
* Schematic - [[File:XL905-51-schematic.pdf]]
* [http://www.electrodragon.com/wp-content/uploads/2011/11/ATmage16-codes-for-Nrf905.rar Demo Code with atmega 16]
* [http://www.electrodragon.com/wp-content/uploads/2011/11/NRF905-for-arduino.zip Code for arduino]

[[category: Sub-1GHz RF Transceiver]]
[[category: Nordic]]

NRF905 - Revision history

Chao at 18:59, 5 February 2020