Browse hardware designs
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Public designs
A Custom STM32 board that runs on a battery with MCP73831 and is easily programmable with USB thanks to the CP2102 USB-to-UART chip.
Small low-power photovoltaic MPPT module with LTO battery
KiCAD project of PCB that reads data from the Aidon electricity meter's HAN port and converts it to an RS485 bus, enabling integration with home automation systems, data loggers, and industrial equipment.
Convert power delivered over USB-C PD to charge 10S/12S Li-Ion battery
QFH active antenna analog front end and down converter
Small low-power MPPT module for photovoltaic cells.
RS485 Spy is an open-source hardware tool for real-time monitoring, logging, and testing of RS-485 networks
GNSS reciever ready to RTK (Real time kinematics) technology
Linear power supply, with digital control
Battery Management System (BMS) with Buck-Boost Converter
A nRFMicro/Pro Micro compatible Bluetooth LE board, uses MDBT50Q nRF52840/nRF52833 module
byrandev, a nRF52840 dev board
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.
Open Wheather Station based on STM32
Dual-cell Li-Ion Battery management system.