2021 Electronic Competition Question A (Signal Distortion Measurement Device) Provincial First Prize Code

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Nordic open source second generation power consumption measurement kit Power Profiler Kit II

Hardware design is difficult, but Nordic is all open source, and PCB, BOM, Gerber, schematics, etc. are all provided. The schematic is also annotated.

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Open source USB2.0 high-speed analyzer

The analyzer host computer directly uses Wireshark. The hardware is implemented using Cypress CY7C68013A MCU + Lattice LCMXO2 FPGA + Microchip USB3343 USB PHY

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Open Source SCPI Programmable Precision Resistor Meter

A programmable resistor is an electronic device whose resistance can be adjusted, usually through a digital signal. Programmable resistors come in the form of integrated circuits (often called digital potentiometers) as well as stand-alone devices/expansion cards. There are many different applications, each with its own set of requirements.

​Range 1Ω - 999.999KΩ.

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2018 Electronic Competition Question A-Current Signal Detection Device (Hangzhou University of Electronic Science and Technology)

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2019 National Electronic Design Competition National Second Prize Code for Question D (Simple Circuit Characteristics Tester)

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2019 Electronic Competition Question C-Circuit Load and Fault Detection Device-Design Report (National Secondary School, Nanxin)

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tCam-Mini: Wireless thermal imaging camera based on ESP32

tCam-Mini is a small wireless thermal camera designed and developed by Dan Julio based on ESP32, which allows users to easily obtain and use radiation data through the Flir Lepton 3.5 sensor. It can obtain the temperature of each pixel and perform various types of thermal imaging analysis; it can also convert the data into color images to display the temperature and shape of the human body through thermal imaging.

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Simple circuit to detect mobile phones

Cell phones typically send and receive signals in the frequency range 0.9 to 3GHz. This article provides a simple circuit that detects the presence of an activated mobile phone by detecting these signals.
The basic principle of the mobile phone detector circuit is to detect radio frequency signals. In Schottky diode circuits, Schottky semiconductors are used to detect mobile phone signals because of their unique properties of being able to correct low-frequency signals with low noise rates. When an inductor is placed near an RF signal source, it receives the signal through mutual inductance. This signal is rectified by a Schottky diode. This low-power signal can be amplified and used to power any indicator light, such as an LED in this case.

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2019 Electric Competition Question C National First Code (Line Load Is Fault Detection Device)

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2019 Electronic Competition Question D-Simple Circuit Characteristics Test-Design Plan and Report (National One, Nanjing University)

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Schematic diagram of the 34401A desktop 6.5-digit multimeter released on the Agilent official website

The schematic is in the appendix at the end of the document.

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ERASynth Micro: USB-powered, low-cost, open-source RF signal generator

ERASynth Micro is an open source signal generator with impressive features. Affordable for everyone including builders, hackers, students, amateur radio and SDR users. The ERASynth Micro is powered via the USB port and has an LCD interface for stand-alone use without the need for a computer or phone. It can generate low phase noise RF signals from 12.5 MHz to 6.4 GHz through a dual PLL architecture.

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Cynthion: Open Source Multi-Function USB2.0 High-Speed ​​Analyzer

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2021 College Student Electronic Design Competition Topic A Outstanding Works Collection (Signal Distortion Measurement Device)

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Pocket oscilloscope source code based on STM32, has been tested and passed

Solemn statement: This is an open source product and can only be used for learning and communication. Commercial use is strictly prohibited, otherwise we will pursue legal liability. Your use of our source code indicates your acceptance of this statement. Qdso is a well-designed pocket oscilloscope with 40M bandwidth, 200M sampling rate and 3.5-inch TFT color screen. The overall design controller uses nios ii soft core; AD9288-100 cross sampling rate reaches 200M real-time sampling, and the display part uses RA8872 that supports double buffering and 2D drawing acceleration to achieve high-speed waveform drawing and display. And we will make the source code and detailed tutorials public for everyone to DIY and learn from.

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ChipWhisperer-Husky: Handheld Channel Power Analysis and Fault Injection Tool

ChipWhisperer-Husky is a compact package for experimental side-channel power analysis and fault injection. It follows in the footsteps of our ChipWhisperer-Lite and ChipWhisperer-Pro products and adds new features such as a high-speed logic analyzer for visualizing faults, real-time data streaming for attacking asymmetric algorithms, and additional I/O Extension pins.

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2017 Electronic Competition H Question-Remote Amplitude and Frequency Characteristics Test Device-Shengyi Works-Circuit Scheme

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2019 Electronic Competition Question C-Circuit Load and Fault Detection Device-Design Report (National First, Southeast University)

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Ultrasonic-based distance meter (including schematic diagram, program source code and related debugging instructions)

Detailed description: Ultrasonic range finder (including schematic diagram, program source code and related debugging instructions, as well as some reference materials, in short, a complete set of information for developing ultrasonic range finders)

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