The changing points of 2nd prototype SmileSound are the followings.
- Fix motor PWM pins
- AUX bug fix
- delete 5V power supply and integrated to 3.3V.
- Adjusted LPF of sound output
- Changed USB adapter's power pin.
- Add large capacitor at 3.3V and 12V power line.
Retweeted by Nardi (The nameless city)
retweeted at 14:00:09