Power Profiler Kit II - Open source second-generation power measurement kit from Nordic

The Power Profiler Kit II (PPK2) is a stand-alone unit that, in addition to external hardware, can measure and optionally source current on all Nordic DK boards from sub-uA up to 1A.

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STM32 OpenSource Multimeter - an open source multimeter suitable for DIY entry

An open source multimeter design based on STM32F1/F3, with dual-range V/I, RMS measurement, continuity, component testing and other functions. The author has made all design files open source, which is very suitable for DIY entry.

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Full open source reverse "blasting" tool

Through this open source tool, everyone can better understand how program firmware is "exploded", thereby improving product security. Crack AES, crack RSA, crack DES and so on.

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Open source wearable watch (including firmware, schematics and 3D printing diagrams)

This smartwatch can measure linear acceleration, rotational speed, heart rate and SpO2 (oxygen saturation) of the hand

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65w portable heating table

Introduction: The PID temperature control heating stage based on STM32F103C8T6 is very convenient and easy to use. It can display parameters through OLED and control the operation with an encoder.
As for why I want to do this project, I mainly made this heating table for the sake of portability, cheapness and low power.

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ST-Link V2.1

Introduction: Self-made ST-Link V2.1 not only realizes the ST-Link download function, but also adds the serial port function to realize one-line download program and serial port debugging function.

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speechless

Introduction: qwq

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Cat.1 DTU extended version

Introduction: With 485 interface, Quectel EC600N-CN module is used as the communication module, and a 20pin custom interface is reserved.

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STLinkV2.1 VCP

Introduction: A STLinkV2.1, supporting ST32 Debug+Mass storage+VCP. In the hardware part, the capacitor, resistor and LED are all packaged in 0805 for easy DIY. The firmware uses ST official firmware, supports upgrading to the latest version, and all functions are normal.

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STM32103ZET6 expansion board LCD12864 platform icedundun

Introduction: STM32F103 ZET6 expansion board based on LCD12864 platform icedundun board

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Waveform recognition

Introduction: Question J of the 2021 Electronic Competition (Periodic Signal Waveform Parameter Identification) related design ideas, principles, codes, and demonstration videos.

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[Internet of Things] Hongmeng Switch

Introduction: Use Hongmeng system to control switches

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Resistor-capacitor buck and MP150 chip

Introduction: switching power supply

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STC89C52RC/STC12 core board

Introduction: STC89C52RC core board, a microcontroller in LQFP44 package

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high cloud fpga

Introduction: Gaoyun FPGA

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STM F405 flight control bf inav flying machine fixed wing flight control

Introduction: F405 flight control, MPU6500 gyroscope, low cost. 20, 30 hole double version. The PCB file is in the attachment, and the bf and inav ground stations are connected to the USB cable to flash the firmware. Automatic return test video https://b23.tv/GcbdOsY

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MATEK F411 fixed wing flight control

Introduction: MATEK F411 fixed-wing flight control STM32F411+MPU6500 gyroscope single panel. Two sets of serial ports, 1 soft serial port.
Adjust the BEC on the back of the PCB to 5v in the attachment before soldering.

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[Internet of Things] Hongmeng IoT Smart WIFI Switch

Introduction: Use the Hongmeng Hi3861 chip combined with the servo to achieve WIFI remote control of physical switches in your home or dormitory.

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DC Electronic Load

Introduction: This system uses the STM32F103 microcontroller as the control core and adopts the PID closed-loop regulation algorithm to realize the constant current (CC) and constant resistance (CR) working modes of the electronic load. Each module can work stably and the system has high control and measurement accuracy.

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STM32H750 test board

Introduction: None

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