FT32_Simple

Introduction: Huimang Microelectronics FMD Cortex-M0 core microcontroller FT32F030 minimum system verification board

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UV deep ultraviolet LED 18650 battery holder version

Introduction: Dual-band UV lamp constant current dimming circuit, onboard 18650 battery holder, integrated charge and discharge overcurrent protection, 4056 charging, extremely advanced TYPEC interface, 3D printed shell

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Union wireless master control, 40% programmable conventional configuration keyboard

Introduction: Keywords: Youlian K230 wireless master control, 40% ordinary configuration keyboard, lithium battery charging, AutoHotKey, borderless, full-key programmable

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Raspberry Pi clock: automatic correction, including date, day of the week, temperature, sunny or rainy day

Introduction: Raspberry Pi + MAX7219 LED dot matrix, python programming, realizes the automatic correction function of the network, displays the date, day of the week, temperature, sunny and rainy days.

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MFIVPTEST V2: New version of Apple data line overvoltage protection tester

Introduction: New version of Apple data line overvoltage protection tester.

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IF.Ruolalan Sharp Echo Wall Control Panel Five-way Switch Version

Introduction: Laolanjia echo wall control panel five-button switch version

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IF. Ruolaolan Sharp Echo Wall Control Panel

Introduction: The control panel of Lao Lan’s Sharp soundbar

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Jiletang_CY288 modified motherboard

Introduction: Jiletang Tornado series clip fan is modified with Type-C interface and added with TP4056 charging IC

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ZT87 homemade keyboard

Introduction: 87-key mechanical keyboard

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Xihe moving lights

Introduction: The small lamp is very bright, and a magnetic strip can be attached to the iron sheet.

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Yuzuki LOHCC HDMI loop-out capture card

Introduction: Low-cost HDMI loop-out capture card based on MS2109 + MS9332, only costs 34 yuan, supports up to 3840x2160@30 loop-out, Type C interface

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10cm ruler

Introduction: A simple ruler

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80-F1 Shell First Edition

Introduction: 80-F1 Shell First Edition

【Training Camp】A handwritten clock

Introduction: A handwriting clock that can write time

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Low cost power sequencer

Introduction: Power Sequencer

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Computer status display based on STM32

Introduction: A computer status display instrument (CPU, RAM) based on STM32 microcontroller.

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Electric triangle ruler

Introduction: PCB triangle ruler, printed with DIC emblem

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Smart switch-GB 86 box

Introduction: Smart switch - national standard 86 box, compatible with single button, double button and three button. There are two relays that can be used as a set of transfer relays for double switches.

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Hotkey keypad with two knobs

Introduction: Hotkey keyboard with two rotary encoders and 8 keys

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Printer sharing device (2 in and 1 out)

Introduction: Because I have two computers at home that frequently use printers, and it is always inconvenient to plug and unplug them, I designed this switch using the original parts I had on hand. One-click switching, indicator light indicates transmission port, few components, no driver required.

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