#include <STM32_TM1637.h>                // http://rcl-radio.ru/wp-content/uploads/2020/02/STM32_TM1637_V1_3.zip
  STM32_TM1637 tm(2,3);// CLK, DIO
 
  const float u_p = 5.10;
  float u_i, u_sum;

void setup(){
  tm.brig(5);
  pinMode(A0,INPUT);
  tm.print_float(50,2 ,0,0,0,0b01110111);
  delay(1000);
  tm.print_float(0,0 ,0b01000000,0b01000000,0b01000000,0b01000000);
  delay(1000);
}
void loop(){
  for(int i=0;i<10;i++){
  u_i=analogRead(A0)*u_p/1023;
  u_sum = u_sum+u_i;
  delay(50);
  }
  u_i=u_sum/10;u_sum=0;
  
  tm.print_float((u_i-(u_p/2))*25,1,0,0,0,0);
  }