Yoji KURODA / Mbed 2 deprecated Mechatro_AnalogIn

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Show/hide line numbers main.cpp Source File

main.cpp

00001 // Divided Voltage ... Mechatronics example
00002 //
00003 // 2017.10.05 ... Y.Kuroda
00004 //
00005 #include "mbed.h"
00006 
00007 DigitalOut myled(LED1);
00008 AnalogIn a0(A0);
00009 
00010 const float vcc = 3.3;  // Vcc voltage
00011 const float r1 = 10;    // R1 [k-ohm]
00012 const float r2 = 30;    // R2 [] 
00013 
00014 int main() {
00015     while(1) {
00016         myled = !myled; // LED is toggled
00017 
00018         float vo = a0.read()*vcc;   // Vo (analog voltage)
00019         float vp = r2/(r1+r2) * vo;        
00020         printf("Analog %7.1f [v]\n", vp);
00021     }
00022 }
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