Computing stuff tied to the physical world

Micro Power Snitch, success!

In Book on May 13, 2015 at 00:01

We’ve come to the eighth and final episode of the Micro Power Snitch story: it’s working! The circuit is transmitting wireless packets through the RFM69 radio module running on nothing but harvested electromagnetic energy. Install once, run forever!

But there are still several little details, optimisations, and edge cases we need to take care of – which is what this week’s articles are all about. As always, one article per day:

The MPS triggers on any appliance drawing ≥ 500W (on 230 VAC, or 250W for 115 VAC):

DSC 5089

As always on the JeeLabs weblog: everything is open source – you are welcome to build and adapt this circuit for your own purposes. If you do, please consider sharing your suggestions/findings/improvements on the forum, for others to learn and benefit as well.

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