Open source power meter: with power supply function, dedicated to IoT power consumption measurement

The biggest feature of testing the power consumption of IoT devices is the high dynamic range, a few uA in the sleep state and hundreds of mA in the transmitting state, and it supports dynamic switching of the measurement range. The open source power meter ZS1100A has a dynamic measurement range of 1uA to 1.5A, a resolution of 100nA, and an accuracy of 1% ± 200 nA, which is very good.

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Multifunctional CNC power supply design based on STM32 (schematic diagram, PCB, program source code, etc.)

Multifunctional CNC power supply design based on STM32 (schematic diagram, PCB, program source code, etc.).

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20MHz handheld dual trace pocket oscilloscope based on TMS320F28033

With TMS320F28033 as the core, it is composed of signal amplification circuit, signal acquisition circuit, data storage and processing module, system control and display module and other parts.

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Dual channel signal generator, manual welding

High reference value, the 50-year-old work of FatFS author ChaN

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An open source multimeter suitable for DIY

This project started with STM32F1 and now it uses STM32F3.

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Smart IoT student dormitory based on RSL10

In view of the characteristics of students' dormitory life, an IoT smart dormitory system is built using ON Semiconductor's RSL10 low-power Bluetooth chip to implement several functional nodes, and a very convenient WeChat applet is used on the control end to monitor data. Through the functional units composed of RSL10 boards for data collection or action control, and realizing the monitoring function of WeChat applet, this project is a simple intelligent control solution for student dormitories, which can be used as courses/graduation projects for students in related majors. Or a case study of ON Semiconductor University planned courseware.

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20 ink screen daisy chain gameplay

Created a daisy chain through the serial port

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2020 E-Contest Question E-Amplifier Nonlinear Distortion Research Device (Dalian University of Technology)

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2021 Undergraduate Electronic Design Competition J Title National First Work (Periodic Signal Waveform Identification and Parameter Measurement Device)

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LibreTimeBase: Rubidium clock control board

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Intelligent atmospheric corrosion monitor circuit schematic + PCB source file

This intelligent atmospheric environment and corrosive monitoring platform integrates hardware, software, and network. With the stable performance IACM-321 platform system as the core, it realizes multi-level dynamic networking and remote status monitoring. It can be monitored in the monitoring/operation and maintenance center. The front-end system provides centralized monitoring and unified management, and uses customized intelligent terminals to achieve mobile monitoring. Convenient Click connect sensor interface, easy to install on smart terminals.

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Sugar glider health management system based on RSL10

The project uses RSL10 to build a sugar glider health monitoring system. With good exercise and diet, my little jelly (sugar glider) can grow up healthily.

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Environmental expert’s smart watch

The work is mainly based on smart watches as a product that contributes to mine operations. The shape of [RSL10-SENSE-GEVK] is perfect for making a watch. All the onboard peripherals are utilized. The watch will collect data every once in a while and store it in the onboard external Flash. A total of fourteen days of historical data can be stored. If the power consumption is reasonably designed, it can Replace the button battery every two months. Normally worn in the normal mode, you can enter the downhole mode by pressing the button. In the downhole mode, the surrounding environment will be detected. When the environment reaches a bad situation, it will enter the alarm state. At the same time, when the person going down the pit feels uncomfortable, he can long press the button to enter the call for help state.

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2019 Electric Competition Question C (Line Load and Fault Detection Device) National First Prize Design Report

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Bluetooth protocol analysis tool nRF52840 MDK USB Dongle

The nRF52840 MDK USB Dongle is a small, low-cost development platform implemented by the nRF52840 multi-protocol SoC in a convenient USB Dongle form factor.

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Spark Analyzer: open source wireless USB PD power supply with power consumption analysis

Spark Analyzer is fully compatible with USB-C PD, ensuring compatibility with a wide range of devices and applications. Precisely control voltage levels to meet your project needs. Switches to 5V, 9V, 15V and 20V to accurately measure the current draw of your project. Understand your power needs and optimize accordingly.

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Graduation project based on 51 microcontroller electronic scale design materials (schematics, source programs, papers, etc.)

Contains all design information

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21-channel 120Msps Raspberry Pi microcontroller logic analyzer

Using Raspberry Pi pico (rp2040) as logic analyzer and oscilloscope with sigrok

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Running posture training shoes

This design is designed for foot posture. Wrong running posture can be corrected through real-time prompts on the mobile phone APP, thereby solving various adverse consequences caused by incorrect running posture.

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Quark: ESP32-based electronic measurement and debugging tool

Quark based on ESP32 is an open source electronic tool that integrates electronic measurement probes and debugging tools. It has a wireless connection function and can be connected to APP.

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