[time-nuts] Homebrew frequency counter, need help

[Angus]

On Thu, 27 Nov 2014 08:20:59 -0800, you wrote:

>Your project sounds wonderful. The TDC-GP22 has been mentioned only a few times over the years and I keep waiting for someone to post actual results from this chip, or better yet -- schematics, photos, and source code.

Just happened to notice that there are actually a few breakout and
development boards on aliexpress based on the TDC-GP21, which is very
similar to the GP22. 
Nothing as impressive as a complete frequency counter of course, but
might be a quick and painless way to start playing with the chip.

Angus.