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

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Multifunctional open source custom macro keyboard based on esp32s3

Schematic PCB

Open Source SMD Reflow Soldering

500W 200mm x 100mm hot plate with designed housing.

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HealthyPi 5: open source biosignal acquisition board

Schematic PCB

Interactive Memory Technology Learning Kit Core64

Core64 combines real core memory and LEDs in a unique interactive way. Core Memory is a magnetic memory technology from the 1960s and 1970s. The tip of the stylus has a magnet that interacts with the LED through Core Memory. In practice, users can think of it as a magnetic touch screen

Schematic PCB

Open source USB2.0 high-speed analyzer

The analyzer host computer directly uses Wireshark. The hardware is implemented using Cypress CY7C68013A MCU + Lattice LCMXO2 FPGA + Microchip USB3343 USB PHY

Schematic PCB

WS2813 WLED fixed buffer

2-layer PCB 9 x 11.4 mm FR-4, 1 mm, 1, HASL with leads, blue solder mask, white silkscreen; very small buffer for WS2813 LED strip.

Schematic PCB

Multifunctional buffer for WS2813 LED strip

2 Layers PCB 10 x 16.5 mm FR-4, 1 mm, 1, HASL with lead, White Solder Mask, Black silkscreen; WS2813 buffer and repeater for long range serial transmission

Schematic PCB

Sunmachine-A2 - Intelligent Lighting System

Driver for WS2812, SK6812 or similar LED strips controlled via Bluetooth LE. It supports RGB and WWA LEDs. The drive uses motion and light sensors so in automatic mode it can turn on the lights when it detects the presence of someone in the dark.

Schematic PCB

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

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

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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LEDThermometer: LED Indoor Wall Thermometer with Power Adapter

LED Indoor Wall Thermometer with Power Adapter

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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

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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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10x10x10 LED cube

The project is a cube shaped 10x10x10 LED matrix controlled by a serial interface.

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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;

Schematic PCB

0603 LED light strip 7 LEDs

2-layer PCB 8.89 x 19.05 mm FR-4, 0.8 mm, 1, soldered with leads, white solder mask, black silkscreen

Schematic PCB

Teacher ChaN’s AC load analyzer

Supports voltage, current, effective power, apparent power, power factor, frequency, and harmonic component display.

Schematic PCB