This is a microcontroller based DIY clock synthesizer module in Kosmo format. It offers high precision and reproducibility, variable clock division, tempos from 7.5 to 208 beats per minute, and up to 24 clock pulses per beat.
00:10 A need for clocks
00:50 Use an oscillator?
02:30 Use a microcontroller
03:08 The clock module
04:20 Beat, clock, and clock division outputs
05:15 Setting the tempo — Increment mode
07:25 MM mode
09:00 Tap tempo
09:37 Changing settings: /N amount
10:31 /N offset
11:08 Pulses per beat
12:21 Width (duty cycle)
13:20 Screen blanking
Schematics, design files, Gerbers, and software are available at https://github.com/holmesrichards/clock
Blog post: https://wordpress.com/post/analogoutputblog.wordpress.com/17219
Music: Ringtone by Rich Holmes