Some ideas got from Tomasz Ostrowski's Miniscope. Tomasz has a bunch of ready-to-use-devices, and I have the only preliminary schematics and raw prototype.

The main idea is to build PC-oscilloscope. Hardware is ST Microelectronics development board STM32F3-DISCOVERY plus small additional board with simple protection circuits and basic voltage dividers.

A special Java application or web browser is supposed to be a PC part of the system.

! WARNING !

Read SAFETY DISCLAIMER before using any of materials listed here.

MIT

• Naked Discovery(Nucleo)
  • No overvoltage protection
  • Input voltage: 0..3V uni-polar
• Shield board + Discovery(Nucleo)
  • Overvoltage protection
  • Input voltage: 0..30V uni-polar
  • Max. input impedance ~33kOhm

See USAGE.md

• cmake 3.7.x
• arm-none-eabi-gcc 5.4 + binutils
• java 8
• maven 3.3
• [Optional] dfu-tool 0.8.1

• mvn clean install

• cd client
• mvn clean install

• mkdir target
• cd target
• cmake -DCMAKE_TOOLCHAIN_FILE=STM32F303xC.cmake ..
• make
• [Optional step] make dfu

See ROADMAP.md