Simple timer with PIC16F628A

This is a quick project for a timer. Recently I finished my UV light exposure box and thought that it will be convenient to have a build in timer to switch off the light after preset time. So I had a PIC16F628A lying around and after searching the web I found a Brazilian site (I think?) with tons of interesting projects with microcontrolers. This project is based on one of them. There are three buttons to o ...

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Frequency counter with PIC16F628A

Frequency counter with PIC16F628A Some time ago I made an audio oscillator with frequency counter which worked very well, but I sold it, and now I am making a new one. The oscillator itself will be mostly the same and when I finish the whole project there will be a separate article. Here I will show the frequency counter module I made for the project. The previous frequency counter was made with CMOS logic ...

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