[proteus simulation] Arduino uno+ key controls 2-bit digital tube countdown

【Proteus Simulation 】Arduino UNO+ Key control 2 Bit digital tube countdown

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• Proteus Simulation
  

The digital pins are almost used up .

Program source code

/* *  Key control 2 Bit digital tube countdown  * Created:  Saturday  6 month  25 2022 * Processor: Arduino Uno * Compiler: Arduino AVR */
    int num=60;            // Define countdown number 
    int count=0;           // Define the count value