132 individually addressable split-flap modules, each with 64 flaps driven by a custom STM32 4-layer stepper driver PCB over CANbus. Each module manages its own acceleration curves and transition timing. A network-connected controller orchestrates the array with remote control through an mTLS-secured WebSocket connection.
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02
Tranquil
Tabletop Sand Robot
ESP32-S3
Altium
USB-C PD
An ESP32-S3 motion controller drives a magnetic arm to trace patterns in sand autonomously. A companion cloud app handles pattern management over mTLS, while the 4-layer PCB — designed in Altium — integrates USB-C PD power delivery and dual stepper drivers into a compact form factor.
Six custom 4-layer PCBs designed to drive an industrial rover in a remote environment. Nodes auto-discover and provision over CANbus via a custom bootloader with protobuf serialization. A containerized NestJS backend with embedded Postgres and a time-series DB runs on a custom Linux SoM, fronted by a Vue app with a custom component library.
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04
Matrx
AWS IoT Smart LED Matrix
ESP32
Xtensa ASM
AWS IoT
An LED matrix display available in three sizes, built on two 4-layer PCBs with hardware-accelerated libwebp decoding via custom Xtensa assembly. An on-device scheduler manages rendering and memory across a library of apps, with a cloud app for remote control. Originally made as Christmas gifts — soon to be for sale.
