Dev journey

The build log.

Every milestone, bug, and dumb mistake, written down as it happened.

Jul 19, 2026
Giving Jambu Better Ears
A single-mic USB microphone gets overwhelmed fast on a moving robot. Upgrading to a proper 4-mic array with real beamforming fixed problems we didn't even know we had yet.
Jul 17, 2026
First Wheels Spin
With the motor wiring solved, the drive system got its first real bench test — both wheels spinning on command, battery-powered, no laptop tether required.
Jul 17, 2026
Teaching Jambu to Listen and Move
The milestone this whole project was building toward: saying 'Jambu, move forward' out loud and watching real wheels respond — entirely offline.
Jul 16, 2026
Building Jambu's Body
Jambu started as a voice assistant running on a Raspberry Pi with no way to move. Step one of giving it a body: a chassis, some wheels, and a motor driver.
Jul 16, 2026
Solving the Mystery Wires
Each motor came with six wires and zero documentation on which two actually spin it. A multimeter and a little patience settled it.