Add on-demand sync clock project details

Added an on-demand sync clock project with MicroPython.

Author: TheKitty

_drafts/2026-01-12-draft.md

@@ -219,6 +219,10 @@ Raspberry Pi Pico: handling fFiles and directories with MicroPython - [Randon Ne
 
 A sports scoreboard using the ESPN API (CircuitPython School) - [Mastodon](https://mastodon.social/@gallaugher@mastodon.world/115791516304352350) and [YouTube](https://mastodon.social/@gallaugher@mastodon.world/115791516304352350).
 
+[![on-demand sync clock](../assets/20260112/20260112clock.jpg)](https://www.hackster.io/news/andrea-favero-s-on-demand-sync-clock-delivers-one-touch-timing-accuracy-11d5661b6137)
+
+An on-demand sync clock (OSC) with MicroPython - [Mastodon](https://mastodon.social/@ghalfacree/115849120555398137), [hackster.io](https://www.hackster.io/news/andrea-favero-s-on-demand-sync-clock-delivers-one-touch-timing-accuracy-11d5661b6137), [Instructables](https://www.instructables.com/On-demand-Sync-Clock-OSC/) and [GitHub](https://github.com/AndreaFavero71/on_demand_sync_clock).
+
 [![title](../assets/20260112/20260112-name.jpg)](url)
 
 text - [site](url).