New version of HDD scanner, since previous version broke up.
Nothing fancy, kinda quick & dirty setup from scrap but works suprisingly well!
Build in few hours, it was pretty straight forward + I wanted to make few improvements on this one.
XY scanner is controlled via mobile phone audio, I used program called Heatcliff for generating audio tracks which are controlling HDD’s voice coils (also edited audio files a bit longer in Audicity).
I had El Cheapo 400mW RGB laser module that I hadnt used for a long time and it was collecting dust. Laser & RGB controler MCU are powered by 3x 26650 Li-Ion’s. Basicly this is portable battery operated HDD scanner.