Posted on May 03, 2018 at 13:55Hi
When I press the button Vo is not = vin, no respond to the button at all.
Any suggestions ?
#include <LiquidCrystal.h>
LiquidCrystal lcd(PA0, PA1, PA2, PA3, PA4, PA5);
int analogInput = PB0;
const int ResetPin = PA7;
float vout = 0.0;
float vin = 0.0;
float Vo;
int value = 0;
void setup() {
// pinMode(PB0,analogInput, INPUT);
pinMode(PB0, INPUT_ANALOG);
pinMode(ResetPin, INPUT);
Vo = analogRead(INPUT_ANALOG);
lcd.begin(16, 2);
//lcd.print('DC V');
}
void loop() {
if (digitalRead(ResetPin) == LOW)
{
Vo = vin;
}
else {
// read the value at analog input
value = analogRead(analogInput);
vout = (value * 3.3) / 4200.0;
vin = vout;
if (vin < 0.09)
vin = 0.0; //statement to quash undesired reading !
}
lcd.setCursor(0, 1);
lcd.print('V= ');
lcd.print(vin);
lcd.setCursor(0, 0);
lcd.print('Vo= ');
lcd.print( Vo, 1);
delay(500);
}
