Design of portable equal-precision frequency meter based on STM32

Introduction: Portable digital frequency meter based on equal-precision frequency measurement method.

Schematic PCB

[Prototype verified] GD32F103C8T6 minimum system board

Introduction: GD32F103C8T6 minimum system solution verification board

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Robot PCB copy

Introduction: Motherboard

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Remote relay control module based on onenet

Introduction: Onenet-based remote control module supports local 485 control. Connect to the server via WiFi.

Schematic PCB

Mini ch340 serial port (51 microcontroller automatically downloads)

Introduction: Mini ch340c serial port can realize cold start download of 51 microcontroller

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light cube

Introduction: Third Prize in the 2022 Guangzhou City Polytechnic School of Electrical Engineering Electrical and Electronic Breathing Lamp Design Competition

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H743-X8-opensource open source flight control

Introduction: Flying-RC H743 DUAL SE flight control, open source flight control...

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FlyingRC-F4Wing-MK2

Introduction: FlyingRC F4Wing MK2 fixed wing flight control

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FlyingRC-F4swamp-V1.0

Introduction: Flying-RC F405 SWAMP pin-type fixed-wing flight control--V1.0 flight control board

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FlyingRC-F405-SLEEK-V1.0

Introduction: FlyingRC-F405-Sleek V1.0 flying machine-fixed-wing high-performance flight control

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Flying-RC_F405-SE-v2.0 F405 flight control

Introduction: Flying-RC open source hardware F405 flight control

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electronic-dices-stc

Introduction: Electronic dice based on STC 51 microcontroller

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Chartered public 2.4G trolley chassis

Introduction: 2.4g toy battle car

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Charter male lolita mini noob control 20200226

Introduction: Added 5v charging and discharging, the boost module can be directly powered by five volts

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The most beggar numeric keyboard PRO (formerly CH552G mechanical keyboard)

Introduction: 17-key RGB+ hot-swappable minimalist style numeric keypad

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RHODES 75 Arknights Rhode Island theme 75 equipped with QMK keyboard

Introduction: A 75-piece Arknights Rhode Island-themed PCB, with knobs, OLED screens, RGB lights and hot-swappable hubs, dedicated to all the swordsmen who love Arknights

Schematic PCB

Megu Pad_v2.0

Introduction: PAD small keyboard using Pro Micro as the main control, with a knob and OLED screen, hot-swappable upper lamp position, QMK firmware, supports Vial modification

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Bing Dwen Dwen

Introduction: Bingdundun, Electronics Association of Liaoning University of Science and Technology

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Microcontroller board

Introduction: stc8g1k08 microcontroller learning board

WCHLINK/DAPLINK

Introduction: Multifunctional microcontroller download debugger

Schematic PCB