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Tools and Materials for Arduino
Instead of freezer paper, I use the carrier sheet from a page of sticky-back address labels. It was designed to go through printers and the shinny side holds the ink until you can transfer the image to the wood surface.
I bought $15 used solar panels, but they were 48V. With the correct 48V MPPT controller and 4 12V batteries in series, I am able to run 120VAC, "40 W" LED lights. The LED's have to be the dimmable type. My solar project was for lighting only and worked well. The shop tools are still plug-in.
I bought 4 used solar panels for $60US. A bargain. Unfortunately, they were 48V panels removed from service at a local warehouse. I did find a 48V MPPT and it works perfectly managing four 12V batteries in series. A bucking converter gives me some 12V DC for the LED string lights, Here is the SURPRISE! Standard 120V AC dimmable (they have to be dimmable) lamps work well without an inverter. My estimate is 70% of full output with 48V DC input. The 120V AC LED lights in the shop stay on all the time. I turn on other lights if I need more illumination. What started out as a big mistake ended up working well.
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