Browse hardware designs
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Public designs
Motor driver PCB
Try to build an ESP32 firmware with LVGL and ST7789 drivers inside.
Type-A USB 双向电流电压表
No description.
USB power delivery solution for charging, or as a universal power source.
This is a small module that handles the USB PD negotiation and simply outputs a specific DC voltage.
A big QMK powered trackpad
No description.
OpenSource inline USB-PD Power meter
KiCad Electroncis Hardware. A 2xAA Battery or USB-C powered IR sensor bar compatible with the Nintendo Wii and Wii-U.
A KiCad 9.0 carrier board for the Teensy 4.x microcontroller, designed for real-time audio sensing with USB-C Power Delivery input, 4S Li-ion battery management, I2S MEMS microphone, and LED lighting outputs.
Schematic and PCB for Li-Po charger with power path, power management inputs, charging state and 3.3V output and I2C fuel gauge
No description.
STM32 based CO2 low power sensor with logging into a SD card.
Air quality sensor (CO2, VOC, NOx, T and RH)
University Project, Compact Desktop Air Quality Monitor. Hardware+Firmware+Software
A miniature USB CO2 sensor
Solar powered Weather Station using an ESP32-C3