PiMod Zero: Transform old TVs into RF video modulators based on Raspberry Pi Zero (schematic, source code, PCB, etc.)

PiMod Zero brings old technology back to life by allowing the Raspberry Pi Zero to display color or black-and-white video and play audio on vintage TV sets. It provides a super compact way to watch old movies, play retro games, display digital art or browse using any TV operating system that receives standard NTSC broadcasts on VHF channels 2 and 3 (55.25 MHz and 61.25 MHz).

Schematic PCB

Snake design based on UCOS system ARM9 hardware platform

University embedded course design, based on UCOS real-time operating system! I hope to be helpful!

Schematic PCB

Inkplate 10: Low-power, easy-to-program, open-hardware e-paper display with Wi-Fi support and 9.7-inch screen

Inkplate 10 is a powerful, energy-efficient, Wi-Fi-enabled ESP32 development board with a recyclable 9.7-inch e-paper display. It's open hardware supported by open source software libraries, and it's easy to program whether you prefer MicroPython or the Arduino IDE.

Schematic PCB

Open source calculator CG-35, RPN calculator similar to HP-35

Schematic PCB

2018 Electronic Competition Question D-Gesture Recognition Device (Guangxi Guilin University of Electronic Science and Technology)

Schematic PCB

ESP32 PD desktop power supply

ESP32 PD desktop power supply

Schematic PCB

Multifunctional Telephone Conference System and Video Conference Design Solution Reference

Schematic PCB

51 microcontroller touch desk lamp

Touch table lamp made by 51 microcontroller

Schematic PCB

Computer USB-based massager (including schematic diagram and source program download)

Including schematic diagram and source program download, the microcontroller is PIC12F629.

Schematic PCB

Stereo Mic and Speaker HAT: A practical, colorful plug-and-play audio HAT for the Raspberry Pi

Stereo Mic and Speaker HAT is an audio HAT for the Raspberry Pi board with dual speakers and microphones for stereo audio playback and recording. HAT does not need to be installed as the onboard EEPROM dynamically loads device tree overlays. First, all you need to do is plug in the HAT and boot up the Pi. Make sure not to plug or unplug the HAT while the Pi is powered on and running, but really, it's that simple! By default the amplifier gain is +9dB, but the amplifier gain can be changed via the onboard pads by adding a small amount of solder. The compact HAT measures 65mmx30mm, which is the same size as the Pi Zero, Adafruit's bonnet HAT and Pimoroni's pHAT, making it easy to use the HAT for a variety of projects.

Schematic PCB

Output capacitor bank for signal power or dual supply headphone amplifier

This is a simple output capacitor bank for use in signal powered or dual supply headphone amplifiers. The output capacitor bank protects the headphones from DC current.​

Schematic PCB

Ant2 LiPo Charger: The smallest USB Type-C LiPo charger

The Ant2 is a tiny USB-C lithium polymer charger that measures just 16 x 9mm, just larger than the USB Type-C connector itself. It is the smallest charger in its class. Ant2 can be used to add USB-C power and battery charging support to space-constrained prototypes and projects. The small size also makes it easier to retrofit USB-C power into your old projects.

Schematic PCB

LEDBOY: A game console without an LCD screen based on Attiny 1614

This project started with a conversation with a friend and apparently how the LED based consoles that existed in the 70's have never been revisited

Schematic PCB

[Open Source Project] Voice Recognition Controlled AI Night Light Based on ESP32

Schematic PCB

USB audio headset design reference circuit diagram

Schematic PCB

Inkplate 6PLUS: Versatile, easy-to-use, Wi-Fi enabled 6-inch e-paper display with touchscreen and front light

Inkplate 6PLUS is a powerful, energy-efficient, Wi-Fi-enabled ESP32 development board with a recyclable 6.0-inch e-paper display equipped with touch screen and headlight. It's part of the Inkplate family of open hardware powered by open source software libraries, making it the easiest electronic cardboard to use, whether you prefer the Arduino IDE or MicroPython.

Schematic PCB

Intimate Photo Frame - Network weather digital photo frame based on STM32H745

Schematic PCB

12f629 microcontroller decodes KEELOG source code, commonly used remote control rolling codes

Schematic PCB

usb keyboard and mouse dual use source code

Schematic PCB

51+sl811 source program + schematic diagram for reading and writing U disk

Schematic PCB