EES Stephen Perse Sixth Form / Mbed 2 deprecated SRF05_HelloWorld

works

Dependencies:   SRF05 mbed

Fork of SRF05_HelloWorld by Simon Ford

main.cpp

Committer:
Aidan2521
Date:
2016-11-29
Revision:
4:87d6d45092c5
Parent:
3:1b2fffffb566
Child:
5:df7cdf275ec9

File content as of revision 4:87d6d45092c5:

// Simple program to read the distance from an SRF05 using the SRF05 library

#include "mbed.h"
#include "Adafruit_GFX.h"
#include "Adafruit_SSD1306.h"
#include "SRF05.h"

SPIPreInit Gspi(p5, p6, p7);
SPI spi(p5, p6, p7);
Adafruit_SSD1306_Spi ssd(spi, p5, p6, p7);
SRF05 srf(p9, p10);
 
int main() { 
    float curval;
    float percentage;
    float tankfull = 5;
    float tankempty = 35;
    float range = tankempty-tankfull; // 100-(value-5)/range*100
     while(1) { 
         curval = srf.read();
         percentage = 100-((curval-5)/range)*100;
         printf ("P,V: %.0f (%.0f)\n\r", percentage, curval);
         ssd.printf ("P,V: %.0f (%.0f)\n\r", percentage, curval);            
         wait(0.2); 
     } 
 }