Nog een Frequency Counter (Toestel of techniek)

door Oldtimer , Oegstgeest, 03-05-2016, 22:35 (3135 dagen geleden) @ Gerard in Zeist

Gerard,

Het ontwerp is gepikt van een Duitse zendamateur, zie:

http://www.qsl.net/dl4yhf/index.html

(Frequency counter with a PIC and minimum hardware).

Op het einde van dat verhaal staat de volgende opmerking:

Finally, there is another 'successful builder' who now sells an almost 1:1 reproduction of the 'DL4YHF counter' on ebay (with the minor addition of a crystal test oscillator). I don't mind doing that (since he sells the counter for a fair price, at least in February 2016), but unfortunately the kit maker / seller forgot to leave any note about the original developer and source. If you found this site via search engine, looking for "1Hz-50MHz Digital LED DIY Kits Crystal Oscillator Frequency Counter Tester", you will know the rest of the story. If you have problems with the kit mentioned above, please don't ask me to help you out, if there is something wrong with the counter (or the firmware, which seems to have been programmed erratically in a few occasions, with non-functional data EEPROM).

Aangezien je twee kits hebt gekocht waarvan er een goed werkt moet je door verwisseling van de PIC 16F628A kunnen vaststellen of daar je probleem ligt.