Franz Pucher / TINF

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NUCLEO AnalogIn

Inhalt

Analog IO Grundlegend

Das folgende Programm liest den analogen Wert des Poti am AnalogIn-Pin A3 und steuert mittels eines PwmOut-Signals den roten Anteil (D1) der RGB-Led am NUClight V3 Board.

NUCLEO-AnaloIn_Poti.cpp

#include "mbed.h"

Serial pc(SERIAL_TX,SERIAL_RX);
AnalogIn ain(A3);
PwmOut RGBr(D1);                // red LED

int main(){
    while(1){
        pc.printf("percentage: %3.0f%%\r\n", ain.read()*100.0f);  
        RGBr.period_ms(20.0f);                  // 20 mili second period
        RGBr.pulsewidth_ms(ain.read()*10.0f);   //  5 mili second pulse (on)
        wait_ms(200);
    }
}
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