yuki hashimoto / Mbed 2 deprecated MaxSonar_EZ1_Analog

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Dependencies:   TextLCD mbed

Dependents:   BodySwap1

Fork of MaxSonar_EZ1_Analog by Michael Shimniok

main.cpp@1:7931088c5e05, 2014-07-23 (annotated)

Committer:
hasimo
Date:
Wed Jul 23 10:33:12 2014 +0000
Revision:
1:7931088c5e05
Parent:
0:9dfac5da16a9 
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
shimniok 0:9dfac5da16a9 1 #include "mbed.h"
hasimo 1:7931088c5e05 2 #include "TextLCD.h"
shimniok 0:9dfac5da16a9 3
shimniok 0:9dfac5da16a9 4 // mbed -> EZ1
shimniok 0:9dfac5da16a9 5 // -----------
shimniok 0:9dfac5da16a9 6 // VOUT -> +5
shimniok 0:9dfac5da16a9 7 // GND -> GND
shimniok 0:9dfac5da16a9 8 // p20 -> AN
hasimo 1:7931088c5e05 9
shimniok 0:9dfac5da16a9 10
hasimo 1:7931088c5e05 11 TextLCD lcd(p24, p26, p27, p28, p29, p30); // rs, e, d4-d7
hasimo 1:7931088c5e05 12 AnalogIn ain(p15);
shimniok 0:9dfac5da16a9 13
shimniok 0:9dfac5da16a9 14 int main() {
hasimo 1:7931088c5e05 15 float adc, volts, inches, cm;
shimniok 0:9dfac5da16a9 16
shimniok 0:9dfac5da16a9 17 while (1){
hasimo 1:7931088c5e05 18 lcd.locate(0,0);
shimniok 0:9dfac5da16a9 19 adc = ain.read(); // read analog as a float
shimniok 0:9dfac5da16a9 20 volts = adc * 3.3; // convert to volts
hasimo 1:7931088c5e05 21 inches = volts / (3.3 / 512.0); // 3.3V supply: 6.4mV per inch
hasimo 1:7931088c5e05 22 cm = inches * 2.54; // inch to cm
hasimo 1:7931088c5e05 23 lcd.printf("%8.3f cm\n", cm);
shimniok 0:9dfac5da16a9 24
hasimo 1:7931088c5e05 25 wait(0.05); // 20Hz update rate
shimniok 0:9dfac5da16a9 26 }
shimniok 0:9dfac5da16a9 27 }
shimniok 0:9dfac5da16a9 28
shimniok 0:9dfac5da16a9 29