mEDBG

Introduction: explained yourself on hackaday, you can burn different firmwares, and it can work with all atmel AVR and SAM microcontrollers.

Schematic PCB

Mini VFD fluorescent digital tube clock

Introduction: The upper display module of a mini VFD fluorescent digital tube clock can also be used for other purposes. The digital tube model is ILC2-12. The price is relatively affordable among tubes produced in Jiangxi. The VFD driver chip uses HV5812 instead of MAX6921.

Schematic PCB

Mini VFD fluorescent digital tube clock lower part module

Introduction: The lower part driver module of a mini VFD fluorescent digital tube clock.

Schematic PCB

GD32E230C8T6 personal development board

Introduction: GD32E230C8T6 self-use development board, capacitor and resistor are 0402, welding is difficult, for reference only

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Boring_stm32h7_screen

Introduction: Zhongjing Tianyuan’s 1.47-inch LCD screen

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Very small ST-Link V2.1

Introduction: Keep the layout as symmetrical and beautiful as possible while reducing the size. (2.65*1.2cm)

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ST-Link

Introduction: The 0402 components on the back are very sinister and are not recommended for direct use.

Schematic PCB

Boring_stm32h7_1.8 inch resistive touch screen

Introduction: Zhongjing Tianyuan’s 1.8-inch capacitive touch screen produced for the Boring_stm32h7 development board.

Schematic PCB

GD32-DAPlink

Introduction: Modeled on Github open source DAP-Link based on GD32F350G8U6

Parking lot management system

Introduction: Parking Lot Management System

Schematic PCB

Power 3.0 output tail panel

Introduction: CNC power supply 3.0 tail plate

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Breathing light design

Introduction: The third prize in the 2022 Electrical and Electronic Breathing Lamp Design Competition of the School of Electrical Engineering of Guangzhou City Polytechnic Institute. Based on the RGB multi-color flashing lights controlled by 51 microcontroller, the graphics show the shape of the Eye of Tianjin.

Schematic PCB

MLX90640 Thermal Imager

Introduction: This design uses GD32F103C8T6 as the main control chip. The main control chip is responsible for collecting data from the infrared thermal imaging sensor and storing pictures.

Schematic PCB

Palm-sized loli remote control

Introduction: Chips 12le and 5a60 are common. For 1s power supply, you can use the onboard TP4056 for charging. For 2s power supply, an external plug is required. There is a space on the board. The SMD wireless module supports two types. The board size is 100*50, which is convenient for the production of 6-inch light-curing printers. shell

Schematic PCB

STM32F40xZGT6 core board

Introduction: The STM32F4xxZGT6 core board is only 77*50mm in size and leads to all IOs. The peripheral modules only retain LEDs, buttons, debugging serial ports, USB and EEPROM.

Schematic PCB

STM32F103CxT6 core board

Introduction: STM32F103CxT6 minimum system, typec interface version.

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USB-TTL(N12 shell)

Introduction: I bought a lot of N12 transparent shells and thought of using them, so I made this USB-TTL. Verification available! The capacitors and resistors used are 0805, which is easier to solder.

Schematic PCB

STM32G0 oscilloscope pen

Introduction: Oscilloscope pen based on STM32G030

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STC8G1K color oscilloscope

Introduction: Oscilloscope toy based on STC1G08A-SOP8

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STC oscilloscope pen

Introduction: An upgraded version of the 8-pin oscilloscope. It replaced the 8G1K17 chip and drew a board to make an oscilloscope pen. It newly supports PWM output and multi-channel ADC.

Schematic PCB