So in my travels recently I discovered JLCPCB. They can make custom circuit boards and their prices seem very affordable. I don’t know what other companies might be out there offering similar services but I don’t think I’ll need to look further…
So I got myself a 1set AM / FM stereo AM radio kit / DIY CF210SP electronic production suite. Here’s me preparing to put it together…
And here’s me failing with the surface mount integrated circuit and ruining the circuit board:
This via Lobste.rs today: SPI: The serial peripheral interface.
This turned up on HN today: Tomu, a tiny ARM microprocessor which fits in your USB port.
So the standard/typical size of the most common DC power plug/socket is 5.5 x 2.1 mm. There are a bunch of other sizes too.
Today I watched How much current can a 9V battery supply? Let’s test it! over on YouTube.