Yamper

A tiny 3D-printed AI voice robot powered by a Raspberry Pi Zero 2 W, with OLED eyes, a speaker, microphone, button control, and a portable PiSugar battery.

Current version

This version targets a Raspberry Pi Zero 2 WH with a PiSugar 3 1200mAh battery.

Target hardware

• Raspberry Pi Zero 2 WH
• PiSugar 3 1200mAh Raspberry Pi Zero Battery
• 2x 0.96 inch SSD1306 I2C OLED displays
• INMP441 I2S microphone module
• MAX98357A I2S amplifier
• 3525 4 ohm 3W cavity speaker
• 16 mm momentary illuminated metal pushbutton
• M3 x 8 self-tapping screws for the case
• 20 cm female-to-female Dupont wires
• microSD card, 32 GB or bigger

Folder layout

hardware/
  v6-zero-fixed/
    stl/       3D-print files
    source/    dimensions, source notes and preview files
    renders/   concept render
software/
  yamper/        early Python app skeleton
  systemd/     service file for autostart
docs/          wiring and build notes

Start by printing only:

hardware/v6-zero-fixed/stl/robot_v6_zero_fixed_front_shell.stl

Then test-fit:

1. OLEDs
2. speaker
3. mic
4. button

Only print the full set after the front shell fits.

Recommended settings:

• Material: PETG for the main body
• Layer height: 0.20 mm
• Walls: 3 or 4
• Infill: 15 to 25 percent

Status

This is not final product-ready yet. Known things to verify:

• speaker thickness
• MAX98357A board size
• PiSugar button location
• OLED clone fit
• button rear depth