www.leniwiec.org

A few years ago (4-5?) I bought a ZOPAN KZ1405 frequency generator, and after a few weeks of using it I noticed that the lack of digital readout is a real pain in the ass. Besides, , it is a really old piece of equipment and to get into spec it needs about 45 minutes to get “warm”, and stabilize itself. So I sat down and started drawing a draft of a small frequency counter. The idea was to create something relatively simple, just to orientate oneself in the real frequency on f-gen output.

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Some time ago I wrote an article about using a rotary shaft encoder (Budujemy cyfrowy zasilacz – enkoder obrotowy w praktyce – sorry only polish version), but it was a very specific situation, in other words it wasn’t a very correct way there. So I decided to write, once again, about encoders and try to explain how to connect and handle it, in a correct way, with avr mcu (in the examples I am using ATmega8A-PU, but it should work on any other eg. ATmega32 or arduino compatible ATmega168/328).

Zdjęcie enkodera

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Today I am going to be a bit more commercial. Having cleared up my storehouse I found a few components that remained after the production of small series. I have 100 pcs of Atmega8A-PU, 100 pcs of MAX232 RS232 converters and 100 pcs of DS18B20 temperature sensors for sale. MAX232 and Atmega8A-PU in DIP package and DS18B20 in TO92 package. The price list is shown below. If you have any questions or doubts… go ahead and write me!

ATMega8A-PU, DS18B20, MAX232

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