Description:
The project is 1Hz - 40MHz frequency counter with voltmeter displayed on 8 digit LCD display.
Micro controller:
At90S4433
Features:
Four ranges, with 10 Hz and 1Hz resolution to at least 40 MHz.
High sample rate (5 samples/sec or more) with averaging to remove jitter.
Programmable ± offsets and S-Meter display for receiver or transceiver.
Binary and BCD maths to provide direct reading of frequency with prescalers.
Low current single supply operation. Can be operated from a small battery for portable use.
Optional high speed PC telemetry.
Well documented source code is available, so the design can easily be adapted.
For more details click:
http://sharon.esrac.ele.tue.nl/mirrors/zl1bpu/micro/CNTR/CNTR.htm
