Three Gs

https://c.im/@threegs

I'm a #Mac user, certified #SCUBA diver (AOW), licensed #HamRadio operator(General), amateur quad pilot, a nationally recognized #Kubb enthusiast, a fan of #VR, I design and print 3D stuff, I’m a loving dad and devoted husband. And I sometimes write run-on sentences.

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threegs_at_c.im@momostr.pink

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Last Notes

2024-07-20 16:58:31

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I used one of these little guys.
https://a.aliexpress.com/_mO6vTza
Before installing it I set one on my roof in direct sunlight and occasionally checked continuity on it. After a little while my multimeter stopped beeping. I brought it inside and still nothing. Then I stood in front of the AC blower and that chilled it right down and the circuit closed again.
I also stuck one in our household freezer (not a terrifically accurate test but that’s what I had. It never cut off. Then I took an identical node and just placed the cutoff in there and stuck that node (not active) right next to my rooftop node and let it sit. Inside the enclosure (shielded from the sun by the enclosure itself and the solar panel) it never cut off. It looks like it’ll take a very hot day to trip the circuit.
I wired it to interrupt the positive wire coming from the solar panel to my Rak board.
I have high hopes for this configuration.

2024-07-20 14:40:00

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Thermal cutoff installed. The #meshtastic node is powered up and back at its temporary* rooftop location. Solar circuit tested and working.
*zip tied to my third floor balcony until I can install my 20ft mast to get it a little higher.

2024-07-20 13:53:24

Today my plan is to take down my rooftop #solar #meshtastic node that has been working reliably and independently for months to install thermal cutoff protection for the batteries. 🤞🏼