POGO ISP Micro: Small and reliable programming adapter for AVR ISP

Do you need a small ISP to program your onboard AVR device? POGO ISP Micro is the right solution!

Schematic PCB

A handheld game console powered by a small battery based on STM32H757 (can run Red Alert, etc. smoothly, and supports simulator operation)

gk is a small battery-powered handheld game console based on an STM32H757 microcontroller (600 MHz) and 128 MiB XSPI SDRAM.

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Intelligent farmland supervision system based on ucosIII and STemwin

Intelligent farmland supervision system USART1 sends text messages USART3 uploads data UART4 receives Zigbee data

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ATtiny Flasher: Open hardware flash tool for Atmel ATtiny

ATtiny Flasher is a convenient device that allows you to use your favorite IDE and debugging tools when developing for ATtiny microcontrollers. Enjoy the classic Arduino development experience while using bare metal. Whether you're a design engineer, a hobbyist, or someone just starting to program MCUs, ATtiny Flasher can help you—without having to port your code to the target platform when you're done.

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RoverWing: Adafruit Feathe expansion board that makes building complex robots easy

The RoverWing is an expansion board (or "wing", following Adafruit's terminology) for the Adafruit Feather board that provides motor drivers that can handle 6-12 V motors, an inertial motion unit (IMU), and common servos, acoustics, etc. for mobile robots. Connectivity ports for GPS, GPS and other peripherals. Affordable, with powerful Arduino libraries and excellent documentation. It also contains a microcontroller with preloaded firmware to control these peripherals, which communicates with the Feather board using the I²C protocol, thereby freeing up the Feather board's resources for other uses.

Schematic PCB

New type of fault device for electric competition source code

This project uses the 430 series MSP430F5310 microcontroller as the central processing unit to develop a new type of fault indicator to indicate phase-to-phase short circuit faults and single-phase ground faults that occur on transmission and distribution lines of 10KV and below. Its main working process is: sensing real-time voltage and current values ​​from the high-voltage line, and sending them to the microcontroller for analysis and calculation after hardware processing. If the fault conditions are met, a flop signal is sent to cause the indicator to flop, and the action information is transmitted wirelessly. The communication module transmits the information to nearby communication substations.

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USB audio headset design reference circuit diagram

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2021 Undergraduate Electronic Design Competition Title D Provincial Second Work (Internet-based Camera Measurement System)

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Lattice ICE40 HX4K FPGA breakout board

Breakout board for Lattice HX4K FPGAs with 10 PMOD connectors and onboard microcontroller for programming and communication via USB.

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Dreamweaver 4N: Four-note sequencer (PCB, schematic, source code, etc.) for creating unique music in real time

Dreamweaver 4N is a four-note sequencer with potentiometers, allowing users to create their own unique music.

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Wireless digital full-duplex intercom solution (circuit + source code)

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MP3 player source code schematic diagram using STC12C5A60S2

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[Open Source] Using ESP32C3 to make a mini quadruped robot

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2019 Electronic Competition Question A-Wireless Charging Car Design Plan and Report (National First, Nanjing University of Posts and Telecommunications)

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100 QFP to DIP

2-layer PCB 28 x 132 mm FR-4, 1.6 mm, 1, tinned with leads, green solder mask, white silkscreen;

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PIC30v voltmeter schematic diagram

The 30v voltmeter made with PIC16f676 includes schematic diagram and source program.

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FPGA minimum system board EP4CE6E22C8 (can be directly opened) reference design

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OpenFlops V1: Hardware open source floppy drive emulator/emulator

OpenFlops is a hardware open source floppy drive emulator/emulator inspired by the ubiquitous Gotek hardware. It is designed to run FlashFloppy firmware.

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W487304AS1C1_garage board

1-layer PCB 50.1 x 79.9 mm FR-4, 1.6 mm, 1, tinned with leads, blue solder mask, white silkscreen;

Schematic PCB

atmega8-328 prototype board: good voltage filtering function

This board was created for the mcudude library and has good voltage filtering, reducing reset time via a c10 capacitor (10nF!!) on the dtr line of a ch340 system. It would be nice to solder a precision socket under the x1 oscillator, it gives you the opportunity to try different frequencies (useful for rs232 communication for example)​

Schematic PCB