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Bi-Colour, Tri-Colour and RGB LEDs
I was having an argument with ChatGPT today, initially about Bi-Colour LEDs, then it spilled over to Tri-Colour LEDs. Let me explain. A Bi-Colour LED has two different colour LEDs in the one package. In theory any two colours could be used but Red & Green or Red & Yellow are pretty common. Now according…
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Update on updating the Retro IC Chip-Tester
Like most engineers I can’t leave something alone for too long if it’s broke and have to keep picking at it. In my previous blog post I talked about wanting to test some suspect ICs I’d bought and the fact that to accomplish this, I would need to update the firmware on my Retro IC…
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Why is nothing ever simple
I’ve just bought 100 x 74LS590 IC’s for a project. They came from China and looking at them, I’m not sure they are genuine. They look a bit suspect (the laser etching isn’t quite right) and the packing was terrible with the pins bent all over the place, so it makes sense to test them.…
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Fixed it…
I’ve been having a problem with WordPress that I assumed was down to my limited knowledge and experience. Turns out there is a bug. I use “Tags” on posts. This allows me to group like posts easily together. I then use the WordPress “Query Loop” to display a list of all related posts at the…