Created Sun, 19 Jan 2014 06:22:19 +0000 by thinkpeace
Sun, 19 Jan 2014 06:22:19 +0000
I ported the LowPowerLab RFM12B library to ChipKit. I've tested it with the WF32, but it should work with other ChipKit boards.
The library can be downloaded here: https://github.com/eric-einem/RFM12B
The RFM12B is a low-power inexpensive wireless transceiver which interfaces using SPI. The ChipKit WF32 will make a great gateway between small RF enabled controllers and the internet. I will be using it with the Moteino's (http://lowpowerlab.com/moteino/) to create a sensor network of very small, battery or solar powered sensor modules, which will feed data to a web-server via the ChipKit WF32.
I wired the RFM12B to the WF32 according to the 3.3V version of the diagram on this page (http://openenergymonitor.org/emon/buildingblocks/rfm12b-wireless), except that the IRQ is wired to Pin 3 of the WF32, and the SS is wired to pin 9 of the WF32.
Sat, 08 Feb 2014 15:56:00 +0000
Very cool, what are you going to do with this?
Wed, 12 Feb 2014 07:21:18 +0000
Jacob, I'm working on a garden controller. The ChipKit WF32 will be used to relay information to a web server. I'm using Moteino's for sensor modules and for an output controller which controls watering. I have one of these boards for activating the solenoids http://www.futurlec.com/AC_Opto_Output_4.shtml
It works great connected directly to the Moteino. It needs 5v power, but the 3.3v signals from the Moteino's are sufficient to control it.
Wed, 12 Feb 2014 15:00:26 +0000
Very cool, I have always wanted to do something like that as well bu I just have not found the time. The triacs on that board look like overkill for sprinklers or are you controlling lighting as well?
Wed, 12 Feb 2014 21:53:20 +0000
The board may be overkill, as the TRIACs can handle 6 AMPS, and the sprinklers need about 0.5 AMPS, but it does work. And, there is not a 1-AMP version of the board available.
I want to do as little soldering as possible, so this board is great for me. When I mass-produce these, I'll redesign it ;)
Thu, 13 Mar 2014 21:14:05 +0000
I am trying to adapt the above code so I can use it on ChipKit DP32 but I can't really make it work. I put an LED on the SS line and it's always on. I modified the pins in the RFM12B.h so they suit my connections but I got no result. Can anyone help?
Thank you! Iulian
Wed, 23 Apr 2014 01:58:18 +0000
It may be hard to see a fast changing signal with an LED... Sorry I'm not more help.