Robocon_IPS / Mbed 2 deprecated Nucleo_read_analog_value2

read speed

Dependencies:   TextLCD mbed

Fork of Nucleo_read_analog_value by Robocon_IPS

main.cpp@1:f54097bcb8a0, 2017-06-02 (annotated)

Committer:
cc061495
Date:
Fri Jun 02 05:19:17 2017 +0000
Revision:
1:f54097bcb8a0
Parent:
0:f3b9844205f2
Child:
2:5c2afc8d7c28
New version(read speed with LCD)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cc061495 0:f3b9844205f2 1 #include "mbed.h"
cc061495 1:f54097bcb8a0 2 #include "TextLCD.h"
cc061495 1:f54097bcb8a0 3
cc061495 1:f54097bcb8a0 4 TextLCD lcd(PC_11,PC_10,PC_0,PC_3,PC_1,PC_2); // RS, E, D4-D7
cc061495 0:f3b9844205f2 5 AnalogIn analog_value(PA_0);
cc061495 0:f3b9844205f2 6 Timer t;
cc061495 0:f3b9844205f2 7
cc061495 0:f3b9844205f2 8 int main() {
cc061495 1:f54097bcb8a0 9 double meas, sum, count = 0, range, highscore = 0;
cc061495 1:f54097bcb8a0 10 lcd.cls();
cc061495 1:f54097bcb8a0 11 lcd.printf("Welcome to Speed Testing!");
cc061495 0:f3b9844205f2 12
cc061495 0:f3b9844205f2 13 while(1) {
cc061495 1:f54097bcb8a0 14 meas = analog_value.read() * 3300; // Converts and read the analog input value (value from 0.0 to 1.0)
cc061495 1:f54097bcb8a0 15 // Change the value to be in the 0 to 3300 range
cc061495 1:f54097bcb8a0 16 count++;
cc061495 1:f54097bcb8a0 17 sum+=meas;
cc061495 1:f54097bcb8a0 18 range=sum/count;
cc061495 1:f54097bcb8a0 19
cc061495 1:f54097bcb8a0 20 if(range > meas)
cc061495 1:f54097bcb8a0 21 range -= 100.0;
cc061495 1:f54097bcb8a0 22
cc061495 1:f54097bcb8a0 23 //pc.printf("measure = %.0f mV, mean = %.0f mV\n", meas, range);
cc061495 1:f54097bcb8a0 24 if (meas < range) { // If the value is greater than 2V then switch the LED on
cc061495 1:f54097bcb8a0 25 lcd.cls();
cc061495 0:f3b9844205f2 26 t.start();
cc061495 1:f54097bcb8a0 27 while(analog_value.read()*3300 < range);
cc061495 0:f3b9844205f2 28 t.stop();
cc061495 1:f54097bcb8a0 29 if(t.read() > 0.0001){
cc061495 1:f54097bcb8a0 30 double time = t.read();
cc061495 1:f54097bcb8a0 31 double speed = 0.25 / time;
cc061495 1:f54097bcb8a0 32 if(speed > highscore){
cc061495 1:f54097bcb8a0 33 highscore = speed;
cc061495 1:f54097bcb8a0 34 lcd.printf("!!!New record!!!");
cc061495 1:f54097bcb8a0 35 lcd.locate(0,1);
cc061495 1:f54097bcb8a0 36 lcd.printf("!!!!!!!!!!!!!!!!");
cc061495 1:f54097bcb8a0 37 wait(3);
cc061495 1:f54097bcb8a0 38 }
cc061495 1:f54097bcb8a0 39 lcd.locate(0,0);
cc061495 1:f54097bcb8a0 40 lcd.printf("%f s", time);
cc061495 1:f54097bcb8a0 41 lcd.locate(0,1);
cc061495 1:f54097bcb8a0 42 lcd.printf("%f m/s", speed);
cc061495 1:f54097bcb8a0 43 }
cc061495 1:f54097bcb8a0 44 else{
cc061495 1:f54097bcb8a0 45 lcd.locate(0,0);
cc061495 1:f54097bcb8a0 46 lcd.printf("Too fast, didn't read =.=");
cc061495 1:f54097bcb8a0 47 }
cc061495 0:f3b9844205f2 48 }
cc061495 0:f3b9844205f2 49 t.reset();
cc061495 0:f3b9844205f2 50 }
cc061495 0:f3b9844205f2 51 }