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While exploring the capabilities of the STM32F3 Discovery coupled with a 3.2 HY32D touch screen I build several apps:

Controlled by touch and swipe

  • DSO (with external attenuator)
  • Visualization of accumulator charging and discharging voltage and capacity (withe external hardware)

Controlled by touch only

  • Frequency synthesizer
  • DAC triangle generator
  • Visualization app for accelerator, gyroscope and compass data
  • Visualisation of touch controler (ADS7846) data
  • Simple drawing app
  • Color picker
  • Game of life
  • System info and test app
  • IR control for i-helicopter
  • USB CDC loopback

Controlled by user button

  • Screenshot to MicroSd card

Usefull libraries

  • C library for drawing thick lines (extension of Bresenham algorithm)
  • Yet another FFT implementation with onboard display
  • print() function over USB or locally

Screenshots

Main menu Info page Test Page
DSO start screen DSO running GUI DSO settings
100us triangle AC 2us low voltage triangle DSO more settings
500us triangle DC 100us square wave with FFT FFT screen
Accu capacity start screen Chart GUI Discharge chart 2200mAh
Draw Display colors / Color picker Square wave generator
Accelerator + gyroscope + compass display DAC control Numberpad
System info MMC info Game of life
Font ASCII Font extended Display Test / Thick lines

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