Reddit:Electronics

Got the design from the MERCIA website.

If you are ever in a pinch you can use a PoE splitter. I was doing some soldering work in the shop with the pinecil soldering iron and found a PoE splitter in a bin.

This is a machine I designed to laser etch pcb’s. I’ve made it so it can do double sided and be easy to align everything when mounting the blanks on the machine. the parts cost of 120 euros, maybe it’s worth making a kit of. I put a few pictures of the results that came from my previous design. I will upload the results of this machine after my uni exams.

If you thought the batteries were bad, this is the next evolution. I found this in a parking lot last week and was shocked to see it has a Color led display in a disposable item.

The display is controlled by 6 pins and uses Charlieplexing.

I thought it would be cool to reuse it for something like a temperature and humidity display with an arduino or ESP. But then Charlieplexing broke my brain and I had to stop for the day. To be continued.