microbit-adc-2/main.cpp, micro:bit adc read, P0
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
//microbit-adc-2/main.cpp | |
#include "mbed.h" | |
#include <stdio.h> | |
#include <string> | |
Serial mPc(USBTX, USBRX); | |
AnalogIn mySensor(P0_3 ); | |
// | |
long convert_Map(long x, long in_min, long in_max, long out_min, long out_max) { | |
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min; | |
} | |
// reading LM60BIZ | |
int getTempNum(){ | |
int iRet=0; | |
//unsigned long reading = 0; | |
float read=0; | |
for (int i=0; i<10; i++) { | |
// reading= P0.getAnalogValue(); | |
read= mySensor.read(); | |
// delay(100); | |
} | |
read =read * 1000; | |
mPc.printf("read=%d\n" , (int)read ) ; | |
// mPc.printf("read=%f\n" , read ) ; | |
int voltage=convert_Map((int) read , 0, 1000, 0,3300); // V | |
mPc.printf("v=%d\n" ,voltage); | |
int iTemp = (voltage - 424) / 6.25; | |
iRet= iTemp; | |
return iRet; | |
} | |
// | |
int main() { | |
mPc.baud( 115200 ); | |
mPc.printf("#start-microbit-adc-2 \n"); | |
// AnalogIn mySensor(P0_3 ); | |
while (true) | |
{ | |
// mPc.printf("%f\r\n" ,mySensor.read() ); | |
int iT1 =getTempNum(); | |
mPc.printf( "iT1=%d\n",iT1) ; | |
wait(1.0 ); | |
} | |
return 0; | |
} | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment