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Make a keyboard yourself at home using ARM-Cortex-M4 micro-controller

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Keyboard-DIY

Make a keyboard yourself at home using ARM-Cortex-M4 micro-controller

example

Hardware Config

Tools used

Schematic

Software config

Arch

Features used

  • Light Weight: The microcontroller can perform othe functions and not only focusing on reading keyboad.
  • Buffered typing: user input is stored and sent so info is not lost.
  • keys rollover SOLVED: no info is lost when users type fast and multiple keys are pressed.
  • switch bouncing SOLVED: every key stroke is calculated not more not less.

Features Implementation

  • Buffered typing: UART0 Interrupt with Software and Hardware FIFOs.
  • Light Weight & keys rollover SOLVED: SysTick Interrupt.
  • switch bouncing SOLVED: Edge triggered Interrupt at Port B.

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