Interesting build with old CDROM parts. The author is a little light on how to make one yourself, but thankfully has enough pictures to get the point across.
https://www.instructables.com/Arduino-Powered-Writing-Telegraph/
Interesting build with old CDROM parts. The author is a little light on how to make one yourself, but thankfully has enough pictures to get the point across.
https://www.instructables.com/Arduino-Powered-Writing-Telegraph/