Satoshi Tohda / Mbed 2 deprecated BodySwap1

Test

Dependencies:   MaxSonar_EZ1_Analog TextLCD mbed

Fork of MaxSonar_EZ1_Analog by yuki hashimoto

main.cpp

Committer:
hasimo
Date:
2014-07-23
Revision:
1:7931088c5e05
Parent:
0:9dfac5da16a9
Child:
2:010f6e9e7174

File content as of revision 1:7931088c5e05:

#include "mbed.h"
#include "TextLCD.h"

// mbed -> EZ1
// -----------
// VOUT -> +5
// GND  -> GND
// p20  -> AN


TextLCD lcd(p24, p26, p27, p28, p29, p30); // rs, e, d4-d7
AnalogIn ain(p15);

int main() {
    float adc, volts, inches, cm;
    
    while (1){
        lcd.locate(0,0);
        adc = ain.read();           // read analog as a float
        volts = adc * 3.3;          // convert to volts
        inches = volts / (3.3 / 512.0);    // 3.3V supply: 6.4mV per inch
        cm = inches * 2.54;    // inch to cm
        lcd.printf("%8.3f cm\n", cm);

        wait(0.05);                 // 20Hz update rate
    }
}