Show HN: I built a synth for my daughter
10 days ago
- #Parenting Projects
- #Hardware Hacking
- #DIY Synth
- Built a portable step-sequencer synthesizer for daughter's third birthday.
- Features include four sliders controlling notes, onboard synth module, OLED screen with visual feedback, and a custom PCB with 3D-printed enclosure.
- Project inspired by daughter's interaction with a Montessori activity board.
- No prior hardware experience; learned microcontrollers, CAD, PCB design, and 3D printing.
- Initial prototype used an Arduino and MIDI controller, later moved to a SAM2695 synth module.
- Challenges included limited RAM on the Nano causing laggy screen updates.
- Used Wokwi for microcontroller simulation during development.
- Designed and 3D-printed a custom enclosure using Fusion 360.
- First assembly involved hand-wiring, but moved to a PCB for robustness.
- Power solution evolved from 4 AA batteries to a regulated 5V supply with an Adafruit Miniboost.
- Final version includes secure PCB attachment and a battery compartment.
- Future plans include upgrading to ESP32 and exploring product potential.
- Challenges to commercialization include safety certification and manufacturing costs.