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I have this tiny Bluetooth transmitter module. The connectors have half the pitch of the usual pitch on bread boards and are difficult to solder. What’s the easiest way to prototype stuff with these tiny connectors. #electronics #diyelectronics

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I pulled apart an LED bulb. I can't remember the lumens but think it was 200lm. I want to use the individual LEDs with an Arduino but don't know what resistor to use with each as I'm not sure how big a punch each one packs. The resistor for all 36 tiny LEDs is in the second photo – looks like [brown black black black red] to my eyes.

Any idea how I can calculate the resistor needed for one bulb please?

#electronics #question #diyElectronics

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In the #UK it's not always sunny enough for one of these to be useful, but I've hooked mine up to a #DIY #battery pack—made of #recycled #liions—and while it's basically useless on a cloudy or rainy day, it actually provides a meaningful amount of power on a sunny day.

This would never work as a commercial product because, if these components were all brand new, it wouldn't make any economic sense.

That's the beauty of #solarpunk #diyelectronics and #recycling! It brings a whole new life to these reclaimed panels and cells!