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Mixed-Signal Board · In Progress

Mixed-Signal IMU Board

A robot that finds its own position indoors without LiDAR, which is expensive, or cameras, which raise surveillance concerns. It will combine an IMU with beacons placed around the room, working like an indoor GPS, and laser ranging. This board is the first step: analog motion sensors read by a 24-bit ADC and an STM32.

Status
PCB design complete
Tools
Altium Designer
Board
4-layer, mixed-signal
Core parts
ADS131M04 · STM32G431
3D render of the IMU board in Altium: gyro and accelerometer along the top edge, ADC and STM32 in the middle, battery input, buck converter and LDOs along the bottom, SWD header on the right
IMU v1.0 in Altium. Sensors along the top, power along the bottom, digital in between.

Floorplan

Laid out like the board itself. Click a block to see its schematic.

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