SpaceX Starlink user terminal modification

Author Lennert Wouters demonstrated how to execute arbitrary code on Starlink user terminals via a custom modchip injected with voltage faults, and notified Starlink of these vulnerabilities.
Although the details are open source, the author does not sell the finished product, nor does he provide details of the modified endpoint firmware and fault injection used in the attack.
The transformation is to use a Raspberry Pi microcontroller

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2018 Electronic Competition Question D-Gesture Recognition Device (Anhui University)

Schematic PCB

Hipoink: Small open source e-paper display updated and wirelessly powered via NFC (schematic and source code)

HiPo is a 3.52-inch e-paper display module the size of a business card. Content is uploaded via NFC via a convenient app, no batteries required. The development board can compile different display functions by editing the code.

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Teacher ChaN’s headphone amplifier design

Teacher ChaN’s headphone amplifier design

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Multifunctional open source custom macro keyboard based on esp32s3

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QR code recognition source code based on STM32 + QR code decoding library lib

QR code recognition source code based on STM32 + QR code decoding library lib

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Obstacle measuring car

A car with intelligent judgment function is designed and produced. The car has the following functions: automatic obstacle avoidance function; tracking function (driving according to the black track on the road); phototaxis function (finding the point light source in front and driving in place); It has the function of detecting the number of iron pieces placed on the road surface; it calculates and displays the distance traveled and the walking time, and can make sounds and light up. The work can be used as a high-end smart toy, or as a powerful application example for college students to learn embedded control.

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Smart network desk lamp based on ESP32S2 and MaixBit

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Steno-Flex: An innovative, cheap, customizable shorthand

Steno-Flex is a unique, low-cost stenotype that matches standard stenotype layouts and key actions. By using flexible keys with touch sensors, Steno-Flex is able to simplify the stenotype's design and mechanics, making Steno-Flex lighter and less expensive than current stenotypes on the market. Steno-Flex uses modern materials and electronic equipment, combined with computers, to allow students and novices to develop shorthand skills. Just plug the USB cable into your computer, launch the open source shorthand software Plover, and you're ready to go. Provides online tutorials and guides. Steno-Flex is an effective device for people who want to learn shorthand and develop real-time speech transcription. Shorthand technology is evolving to become the standard solution for data entry, from simple keyboards to sophisticated shorthand controls.

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A tiny, open source USB computer for security applications

The USB armory Mk II is a full-featured computer (900 MHz ARM® processor, 512 MB RAM, Bluetooth, USB-C) in a small form factor, designed from the ground up with information security applications in mind.

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Make your own smart home wireless alarm with AT89C2051

Use AT89C2051 to make your own smart home wireless alarm.

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Designing electronic password lock using PIC microcontroller

This article introduces the electronic code lock made with PIC16F84 microcontroller. The PIC16F84 microcontroller has a total of 18 pins and 13 available I/O interfaces. The chip has a 1K×14 FLASHROM program memory, a 36×8 static RAM general register, a 64×8 EEPROM data memory, and an 8-level deep hard stack.

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ESP32-Wifi real-time desktop

Use the PIO plug-in of VSCode to directly open the project folder under the Code directory for compilation~

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Snake based on microcontroller (schematic PCB source program simulation file)

The microcontroller production contains schematic pcb diagram source program simulation files

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Realizing LED reading of remote control key values ​​based on microcontroller (program and circuit diagram)

Microcontroller realizes the program of LED reading remote control key value

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Smart light based on stm32 nucleo_L476 (operating instructions + source code)

Smart light based on stm32 nucleo_L476 (operating instructions + source code).

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Temperature and humidity monitor solution based on MM32W wireless MCU series

Introducing a Bluetooth application solution with rich usage scenarios - a temperature and humidity monitor developed based on the MM32W series.

2018 Electronic Competition Question D-Gesture Recognition Device (Xidian University)

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Electronic scale solution, schematic diagram and program based on AT89C51

Electronic scale solution, schematic diagram and program based on AT89C51

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Maker LED Display: Arduino programmable and internet-connected LED matrix display

Maker LED displays make using LED matrix displays easy. The ready-to-use, fully assembled circuit board has everything you need to run your monitor - just plug it in! Using and customizing the display is easy, with a specially written Arduino library and a dozen pre-made examples. The Maker LED display also has Wi-Fi so it can connect to the Internet to retrieve and display information. Choose between 32 x 9 pixel or 64 x 9 pixel versions and select LED color: white, blue, red, green, orange or violet.

Schematic PCB