RFM12B Module
by someone16 on Oct.28, 2009, under
In the following files you can find code for AVR micro controllers to use this modules.
Source (.c) file: hopeTx
Source (.c) file: hopeRx
PDF file: RFM12B
RFM12B and AVR - quick start
I found this tutorial when I searched for connecting this module to AVR.
You can download the tutorial at: PDF file: zenburn.net
My Experience
My attempts to get this module working were all unsuccessful.
:rfm12b avr electronics
Source (.c) file: hopeTx
Source (.c) file: hopeRx
PDF file: RFM12B
RFM12B and AVR - quick start
I found this tutorial when I searched for connecting this module to AVR.
You can download the tutorial at: PDF file: zenburn.net
My Experience
My attempts to get this module working were all unsuccessful.
3 Comments for this entry
Leave a Reply
January 3rd, 2010 - 04:05
Me 2 cant get success with RFM12B.
But sure i will succeed soon. :)
January 28th, 2010 - 14:02
I also have had issues in the past with these devices. I would bet that your code is ok it is the module itself. I purchased 40 of these units (433Mhz, and the 915Mhz) versions. Of the 40 only 5 or so worked as recieved from the vendor. As it turned out, in my case there was a solder issue on the connectors of most of the units. I came across this as a result of banging my head agaist a wall for weeks thinking it was my code. After looking at all transactions with a logic analyzer and a scope it was clear I was meeting all timing and by deduction the only thing left was the module. I inserted 20 units in a row into my PCB looking for a response from the FFIT pin or the IRQ and after the 21st unit I got a response. I later wiggled the unit back and forth and it then also failed. I resoldered ALL pins on the connector, using flux and a little solder. I have tested all units and they work perfectly. I am not using an AVR I am using a PIC as my target processor. I contacted HOPE RF and submitted waveforms, pictures and a report detailing my findings. It was not taken seriously by them at all. They told me to contact the seller, when clearly they have a quality control issue. Anyway I hope this helps, I wish someone would have told me when I was frustrated. Good luck!
March 22nd, 2010 - 22:31
Thanks for the interesting and thoughtful comments! While it may be a bit counter-intuitive, all our analyses show that the Parallel Solar approach can be a cost reducer.
<a href="http://www.fuzal.com"> Online electronics </a>