An open source project for underwater sensor nodes based on single-pair Ethernet technology SPE (from tutorial to actual combat, English)

Single-Pair-Ethernet technology (SPE, Single-Pair-Ethernet) describes the transmission of Ethernet through only a pair of copper cores. In addition to transmitting data through Ethernet, it can also simultaneously provide power to terminal devices through PoDL (power supply over data lines).

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Voltage sampling module based on VSM025A

Introduction: Voltage sampling module based on VSM025A

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2018 Electronic Competition Question C-Wireless Charging Electric Car (Xidian University)

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2018 Electronic Competition Question C-Wireless Charging Electric Car (Xidian University)

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2019 National Electronic Design Competition Title A Province One Code (Dynamic Wireless Charging System for Electric Cars)

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2019 E-Contest Question A-Wireless Charging Car Design Plan and Report (State II, China Southern Airlines)

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2019 Electronic Competition Question A-Wireless Charging Car Design Plan and Report (National First, Hohai University)

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2021 College Student Electronic Design Competition Topic C Outstanding Works Collection (Three-Port DC-DC Converter)

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2021 College Student Electronic Design Competition Topic B Outstanding Works Collection (Three-Phase AC-DC Conversion Circuit)

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Open source 60W small UPS power supply reference design

Ideal for running network devices such as small switches, home routers, and WLAN access points.

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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.

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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

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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.

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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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1117 Simple board for voltage regulator

2 Layers PCB 14.8 x 24.8 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen;For SMD 1117 Set Voltage O/P Regs - LED Indication

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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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100W fast charging power bank (0.91' OLED screen)

A 100W fast-charging mobile power supply based on the IP5389 chip solution, equipped with an OLED display that can display battery power and temperature.

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0-30V, 0-7A adjustable switching power supply

2 Layers PCB 42.2 x 68.8 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen;

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0-30V 0-3A DC regulated power supply circuit

0-30V 0-3A DC regulated power supply circuit

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