This Portable Mini Weather Station, powered by ESP12F and a vibrant 1.5" TFT display, fetches accurate weather updates

Headphone amplifier published in “Transistor Gijutsu” magazine

Introducing a cost-effective flight controller PCB designed for budget-conscious drone enthusiasts and educators: powered by the STM32F405RGT6, this board integrates the MPU6050 IMU and BMP280 barometer for stable flight in basic quadcopters and fixed-wing UAVs, offering a reliable, easy-to-integrate solution perfect for learning and experimentation, with open-source compatibility and simplified design.

PCB HEART, 5*RGB LED WS2812B-2020,CH32V003

This is a twin delta loop antenna designed for the 1200MHz band for HAM radio practitioners. It can be used by soldering an SMA connector.

In this tutorial, I am going to show you guys how to design this "Transformers PCB Badge" and how to solder the components to it.

Keychain with 4 ws2812b-2020 LEDs, MCU ch32v003 and USB

Simple Cute Dog Keychain with LED's

A PAL-compatible display for the Microprofessor MPF-IB and MFP-IPlus