STM32 firmware development
HAL, motor control, PID, sensor fusion (IMU, IR, LiDAR over UART/I2C), DMA, event-driven control loops. From hobbyist projects to competition-grade systems.
Starting at $50/hr
Embedded robotics engineering
Custom robotics engineering, end-to-end.
End-to-end embedded engineering by Szymon Bogus. Two-time RoboRAVE world champion, hands-on builder.
Services
PCB design
Custom boards from motor drivers and sensor breakouts to full robot main boards, including PCB-as-structure designs.
From $300 per simple board
Commissioned builds
End-to-end small robot or embedded device design and build. Mechanical CAD, custom electronics, firmware, fabrication, integration.
Quote only, projects from $1500
Mechanical CAD for fabrication
Inventor parts and assemblies designed for FDM 3D printing, resin printing, and steel CNC machining. Includes export-ready files (STL, STEP) and fabrication-aware design choices: warping, tolerances, ribs, fastener fits.
From $50/hr
Selected projects
Freak (custom 3 inch quad)
SpeedyBee F405 AIO on 3S, iFlight Xing2 1404 motors. Fully custom airframe designed from scratch: 3D-printed PA12-CF pod, carbon rod arms, printed motor mounts, no off-the-shelf frame parts. 145 g all-up at roughly 8:1 thrust to weight. 0 to 100 km/h in 0.61 seconds, 8 G peak, 105 A. Betaflight tune with custom vibration filtering.
Watch the build See it fly
Lil Szymi (MiniSUMO robot)
STM32F411CEU6. Custom 4-layer Altium PCB. DRV8251 motor drivers, LIS3DH IMU, TF-Luna LiDAR over UART, IR via ADC+DMA, OLED over I2C. Steel CNC base, 3D-printed structure, custom cast silicone wheels, 4-wheel drive with custom gearbox.
Watch the build
Line Leader (turbine-downforce line follower)
STM32F405RGT6. PCB designed as the structural element. DRV8873 wheel drivers, BLDC turbine via ESC, IMU + IR sensor array. Turbine designed from scratch, N60 motors with 7:1 gearing, carbon parts. PID-tuned, IMU and line sensor calibration.
Watch the build
McQueen (Sumo robot)
STM32G431. Custom motor driver PCB in Altium. LiDAR over UART, IR via ADC+DMA. CNC and 3D-printed modular base. Solo SUMO bot build from 2024.
Have a project?
Tell me what you are building. I respond within 48 hours.