Browse hardware designs
BoardRepo is the GitHub for hardware. View any KiCad schematic, PCB, and BOM in your browser and download the sources, no install and no account needed.
Public designs
Open-source air quality and environmental monitoring node with STM32H743 + ESP32-C3, LoRaWAN, RS485, USB-C, Li-ion charging, and multi-sensor support.
Custom industrial-grade PLC and logic controller engineered around the ESP32 platform.
Universal Arduino based data logger to SDcard.
With active balancing circuit in the future (v2.0 ISA), the circuit will be able to charge multi-cell connected in parallel and balance between them while discharging.
RP605K is a compact ultra-low-power buck-boost converter module with a built-in battery monitor. Vin: 1.8-5.5V and Vout: 3.3V up to 300mA
Open Wheather Station based on STM32
Dual-cell Li-Ion Battery management system.
MPTT solar charge controller for 18650 cells.
GNSS positioning module providing location and timing data over CAN bus
Without using a USB-C PD controller chip, handling communication over the USB cable, USB-C standard allows to get 5V up to 3A through a hardware availability detection. Here I show a design developed on KiCad and made through JLCPCB, powering from a USB-PD source and providing 5V and 3.3 (through a step-down converter) up to 3A.
A 2-layer PCB for a small sumobot including MSP430G2553, regulators, motor drivers, and IR receiver.
GNSS-powered, seven-segment table clock
Self-contained 5W Class-D amplifier inside a Speakon connector
A dual channel brushless motor controller based on the RP2040 microcontroller, designed in Kicad.
Open Source, easy to use Ethernet connected stepper motor controller. Built in FreeCAD, KiCAD and Arduino.
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Open Source Solar Inverter - Software, Hardware, Mechanics