This project involved the end-to-end design and development of a compact, low-power IoT system using the ESP32-C3-02 SoC and integrated TP4056 Li-ion battery charger. The goal was to create a reliable and modular platform for wireless environmental data monitoring, powered by a rechargeable battery with onboard protection and USB-C support.
Open source digital servo replacement module for the Sony Walkman WM-D6C. Replaces the CX20084 servo IC, CP304 boost converter, and CN301 power jack with a single STM32G0B1-based PCB. Dual variant: USB-C PD or polarity-agnostic barrel jack input. Bare-metal C firmware. CERN OHL-P v2 / MIT / CC BY 4.0.
Open source digital servo replacement module for the Sony Walkman WM-D6C. Replaces the CX20084 servo IC, CP304 boost converter, and CN301 power jack with a single STM32G0B1-based PCB. Dual variant: USB-C PD or polarity-agnostic barrel jack input. Bare-metal C firmware. CERN OHL-P v2 / MIT / CC BY 4.0.
Comprehensive STM32F796 dev board tailored for versatile applications. Features dual OTG USB-C interfaces (FS and HS), high-speed DRAM, DSI and EMMC storage. Ideal for developers seeking advanced integration and performance in their hardware projects
4-layer ESP32-C3 WROOM development board with USB-C, ESD protection, LDO regulation and differential pair routing — designed in KiCad
A professionally structured, production-ready KiCad schematic integrating an ESP32-WROOM-32D with wired dual-port Ethernet, high-speed USB-C debugging, and an onboard AC/DC power supply.
An hardware audio interface featuring an ouput selector and an amplifier powered by usb C
a very skibidi usb charger hub. powered using an old PC PSU with 12V and 5V to charge phones and alike
KiCad PCB automation toolkit — placement, routing, scoring, and experiment management