Labels Milestones
Back(in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on the thru-holes. C7 is a guessed.
- CT05-XXXX-J1 Coto Technologies SPST.
- Diameter=4mm, height=7mm, Non-Polar Electrolytic.
- 65x9.8mm^2, drill diamater 1.3mm.