Hardware

Check this link out. Be sure to watch his you tube video too. https://tech.scargill.net/cheap-as-chips-touch-switch/

Ok so I managed to find some info on the weird message. It seems to be a I_HEARTBEAT_RESPONSE. Guess i'll haveto find out to whom its responding..

@pouniok just hope you don't have any neighbour that likes to tinker with home automation in RF devices or you could face the issue of having things turning on and off out of your control :D

probably another manufacturer.. But I would go with this one.. /Thomas

You are buying the board only, you have to buy the supercaps separately

@sundberg84 Ah you see I need to learn more :) Didnt know that gnd could add noice. Will try what you sugests thx Håkan

My plan is to use 2x nimh batteries. Nimh can need up to about 1.5V before they are fully charged (depends on how fast the solar panel can charge them but for a small panel charging will probably be less than 0.1 so 1.45V should be enough to fully charge) These lights usually charge directly from the solar panen to avoid having to add a charging circuit, to keep cost and complexity down. 3x1.45V=4.35V which is more than most 3.3V components can handle. The atmega328 works down to 1.8 with lowest BOD. Rfm69 works down to 1.8. Nrf24 works down to 1.9. At 1V a nimh is almost totally exhausted. So 2x nimh gives enough voltage at the low end for the components I usually use. This avoids adding a step up/down which means lower complexity and cost, and no loss of efficiency due to conversion. These are just my thoughts so far. Hopefully improvements can be made :)

@Bogus-Exception said in Using Solar Powered Night-Light Housing? (2v...): I thought they might be a value for a sensor housing, with the bonus of having a weather-ready solar panel. I do think that's reasonable. If you can find an attractive housing that has the look you want and which has a good mini solar panel and is also truly weather and moisture proof, then that's a good find. Do let us know if you come across something like that.

Thanks for your reply. Yes, hysteresis programming makes sense. But when I am testing these small voltmeters with a power supply they respond to the 0.01v changes... really strange. I have not try to monitor the voltage with the arduino sensor yet but I did test it with a multimeter that uses a lcd display. Works fine there...

With those additional components that are required I don't think it's that compact anymore.

This guy has actually tested the mcp16251 and posted his findings on YouTube https://m.youtube.com/watch?v=O5o6JUjz6Yc

I'm gonna see if I can grab a few ferrite cores and stick then on the AC lines to see if that suppresses the EMI.

@Nca78 Great! Orders on the way then!!

This is how I did it for the Sensebender Micro: https://forum.mysensors.org/topic/2725/sensebender-micro/29

@Bogus-Exception They are ready: http://www.ebay.com/itm/LTC3110-super-capacitor-charger-balancer-with-system-backup-/332255910339?ssPageName=STRK:MESE:IT

@CrankyCoder thanks! 8-)