With over a dozen nodes now active, JeeMon is finally starting to collect a bit more useful data to work with:
Looks like some temperatures have a granularity of 1°C – might be a few cheap DS1820 units I had…
The Mason-like templating code in “try-temps.html” to generate this plot is still far from obvious:
Once I get to spend some real time on all this, it’ll look totally different. JeeMon as a whole is going to change completely in fact – until then, you can find some technical background information in an older post.
Let’s just say that it gets the job done right now…
What is the lowest cost micro-based RF transmit/receive unit I can build? I needs to have a range of 3 – 5 meters within a room. Since you have so much experience, I thought I’d ask an expert.
I don’t know of any lower cost options than JeeNode kits – http://shop.jeelabs.com/products/jeenode