Clocks are great, but the problem is that they keep drifting and require regular adjustment which is a nuisance.
I'm thinking of building clocks that require no adjustment and I had a few ideas:
1. Get the time from cheap GPS receiver board, but this does not work indoors.
2. Get the time from time server but this requires internet and wifi interface circuitry.
3. Get the time from radio receiver, not sure about the cost of parts or complexity.
Any other ideas how to make clocks adjust automatically like the PC clock?
Mahmood