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steadfast well for an overview: NodeMCU ESP8266 as the wifi and controller. Can push commands to it with webcore with it running a webserver. ~$5 a board. Cheap hobby servo with enough torque to turn the louvers ~$5 Bought a cheap phone power bank with a 21700 battery, 5000mah ~$12. Only worry is the battery isn't large enough. Found another charger for $16 with 2 for 10000mah. Going to test and if necessary run that. TP4056 lithium ion charger. This will charge the battery, protect from overcharge, and shut the battery off if it gets too low. ~$1 a board. 5. 5v solar panels got 5 of them will run in parallel for about 300ma of charge current. Will hook to the TP4056 to charge the battery during normal use. $8-9 Was going to use the circuit of the battery pack as a boost converter to get 5V out, but it seemed to stop working so I might have to pickup a cheap boost converter, which is probably a couple bucks too. My biggest cost is the battery, but if I can find cells for cheaper, i can save some there. May need a larger solar panel too. But that's going to take some experimentation to see what works. Luckily 99% of my windows see sun for at least half of the day. Would love to run power to the windows which would bring the cost down to about $10, but the wife doesn't want cable hider tracks on the walls, so I have to get creative!
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