It’s been quite a while from the last post. I’ve had many projects and several ideas that would have made for a nice blog post but I never quite got around to writing, but now I finally decided to write a small memo. When you are using a LCD the driver needs to generate bias … Read more
Yes, display is there twice. Anyways, I’ve got this old dot matrix LCD, and for fun I decided to try to make a driver for it. It’s from a Brother LW-1 word processor which was a sort of electrical typewriter that included a printer and digital software for, well, word processing. The display is a … Read more
I finally got around to soldering my new RP2040 breakout board to try the MCU a bit before using it in any complex projects. The board is quite simple and consists only of a linear regulator, a W25Q16JVSSIM 16 megabit Winbond flash memory, a 12MHz crystal , some usual resistors and capacitors, and of course … Read more
I couldn’t get to test my new solar charge controller coupled with a cheap 10W solar panel, and won’t be able to for a while as the weather forecast tells that it will be cloudy for the next week. So instead I decided to write some thoughts about my project. The goal for the project … Read more