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Arduino mini, ESP8266 adapter board! Solves the power supply problem once and for all.
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So if you look at my recent arduino post history, I include a esp8266 in pretty much all my projects now. I love it, but its not exactly the easiest to power. It is a pretty power hungry chip and none of the boards i have are able to supply enough 3.3V current to keep it running.

So i designed a PCB to fix that problem!

It has a 3.3V LM1117 voltage regulator which provides up to 800 mA of current. It also has a micro USB connector so i can use it easily pull power from a cell phone charger. On the left is connectors to hook up some sensors and on the right is all of the digital pins broken out.

This is only my 3rd PCB and my first with SMD components so if you have any tips feel free to post em!

I'm not terrible proud of my soldering and it's rather cramped but it works! Next version will be a bit bigger so i have more clearance around the components.

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9 years ago