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Not complicated calculator (STM32F0, WH1602, RPN)

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Jeelman

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that is in two version - with touch sensor grid keyboard and with pushbuttons keyboard.
for the rest they similar - (double) variables for calculation, 15 stage for stack, 20 memory registers (also stored in eeprom),
some place for 3 microprograms in eeprom, small amount of built-in trigonometric function and so on.
"K,K,F"key sequence used for switching automatic/programming modes, "K,BACKSPACE" for run loaded program, "F,BACKSPACE" for load and run.

- - - Updated - - -

some photos of test samples
 

Attachments

  • STM32_CALC.zip
    126.1 KB · Views: 98
  • STM32_TS_CALC.zip
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  • stm32_calc.gif
    stm32_calc.gif
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  • stm32_ts_calc.gif
    stm32_ts_calc.gif
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  • calc 1.jpg
    calc 1.jpg
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  • calc 2.jpg
    calc 2.jpg
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  • calc ts 1.jpg
    calc ts 1.jpg
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  • calc ts 2.jpg
    calc ts 2.jpg
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  • calc ts 3.jpg
    calc ts 3.jpg
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Nice (and hard) project, congrats.
Regards, zuisti
 

Thanks, Zuisti. that is not hard when interesting.

several words about pushbuttons keyboard - automotive foam tape over button pusher is useful for additional softness.
 

Attachments

  • buttons.jpg
    buttons.jpg
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  • front_panel.zip
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small changes in display output
 

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  • odo.jpg
    odo.jpg
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  • hex for calc 12_01_2019.zip
    61 KB · Views: 94

version with precision adjustment
 

Attachments

  • for calc 15_01_2019.zip
    337.2 KB · Views: 95

version with code lock protection. "K,K,*" key sequence for activation (enter '0' key for unhooking).
 

Attachments

  • keylock_version.zip
    64.9 KB · Views: 95

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