Hello, I want to try out some breakout board for the rfm12b with an arduino pro mini. The pro mini has ATmega168 which runs at 3.3V and 8 MHz. My question is: will the RFM12b driver of the jeenode work correctly at 8 Mhz rather than 16MHz? :-)
Arduino Pro Mini + rfm12b driver support
(7 posts) (2 voices)-
Posted 15/10/2010 07:20:12
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It should do Epokh. The SPI bit rate for the RFM12B is pretty flexible, just as long as SCK is cycled correctly.
I've bit-banged SPI to a RFM12B. So with hardware SPI on the Atmega168 you shouldn't have a problem. A slower SPI clock rate will just reduce the maximum data rate you can achieve.
Just hook it up on the same pins JC uses on the JeeNode and it should work with the standard library.
Posted 15/10/2010 07:44:58 -
Perfect I will give it a go :-)
Posted 15/10/2010 07:48:01 -
I have actually got a pro mini 328 lucky me! I have powered it up and connected in the same way as the jeenode. I got the registry check status correct. Next step try to send some bytes to a jeenode receiver or to another one with a pro mini. :-)
Posted 15/10/2010 18:12:59 -
Upload RFdemo onto it and you should be good to go!
Posted 16/10/2010 02:33:23 -
Yes I confirm it works. I will write a small tutorial on my website. Thanx a lot for the help slappa. :-)
Posted 17/10/2010 08:53:15 -
I have put the information on my blog here: http://lab.robomotic.com/
Posted 20/10/2010 10:45:27