groep 16 / Mbed 2 deprecated PES_PWM_Example

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Dependencies:   mbed

main.cpp@1:fd5f5be335b7, 2019-09-20 (annotated)

Committer:
JasperFix
Date:
Fri Sep 20 10:14:15 2019 +0000
Revision:
1:fd5f5be335b7
Parent:
0:fca53941e5d5 
gebruik knopjes ipv potmeters;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Gijsvanoort 0:fca53941e5d5 1 // For this example, you need the BioRobotics shield.
Gijsvanoort 0:fca53941e5d5 2 // Connect POT2 (frequency)to A0
Gijsvanoort 0:fca53941e5d5 3 // Connect POT1 (pwm) to A1
Gijsvanoort 0:fca53941e5d5 4 #include "mbed.h"
Gijsvanoort 0:fca53941e5d5 5 #include <math.h>
Gijsvanoort 0:fca53941e5d5 6
Gijsvanoort 0:fca53941e5d5 7 DigitalOut gpo(D0);
Gijsvanoort 0:fca53941e5d5 8 DigitalOut led(LED_RED);
Gijsvanoort 0:fca53941e5d5 9 AnalogIn freq(A0);
Gijsvanoort 0:fca53941e5d5 10 AnalogIn pwm(A1);
JasperFix 1:fd5f5be335b7 11 AnalogIn button(A2);
Gijsvanoort 0:fca53941e5d5 12 Ticker ReadPotmetersTicker;
Gijsvanoort 0:fca53941e5d5 13 volatile double frequency_Hz=1;
Gijsvanoort 0:fca53941e5d5 14 volatile double pwm_pct = 50;
Gijsvanoort 0:fca53941e5d5 15 volatile int on_time_us; // The time the LED should be on, in microseconds
Gijsvanoort 0:fca53941e5d5 16 volatile int off_time_us;
Gijsvanoort 0:fca53941e5d5 17
Gijsvanoort 0:fca53941e5d5 18 void ReadPotmeterValues(void)
Gijsvanoort 0:fca53941e5d5 19 {
JasperFix 1:fd5f5be335b7 20 //frequency_Hz = 1 + pow((double)freq.read(),4) * 50; // Frequency ranges from 1 to 50 Hz
JasperFix 1:fd5f5be335b7 21 //pwm_pct = pwm.read() * 100;
JasperFix 1:fd5f5be335b7 22
JasperFix 1:fd5f5be335b7 23 if (pwm == 0){
JasperFix 1:fd5f5be335b7 24 frequency_Hz = frequency_Hz + 1;
JasperFix 1:fd5f5be335b7 25 }
JasperFix 1:fd5f5be335b7 26 if (freq == 0){
JasperFix 1:fd5f5be335b7 27 frequency_Hz = frequency_Hz - 1;
JasperFix 1:fd5f5be335b7 28 }
JasperFix 1:fd5f5be335b7 29 on_time_us = (int) ((50/100.0) * (1.0/frequency_Hz) * 1.0e6);
JasperFix 1:fd5f5be335b7 30 off_time_us = (int) (( (100.0-50)/100.0) * (1.0/frequency_Hz) * 1.0e6);
Gijsvanoort 0:fca53941e5d5 31 }
Gijsvanoort 0:fca53941e5d5 32
Gijsvanoort 0:fca53941e5d5 33 int main()
Gijsvanoort 0:fca53941e5d5 34 {
Gijsvanoort 0:fca53941e5d5 35 ReadPotmetersTicker.attach(ReadPotmeterValues, 0.1);
JasperFix 1:fd5f5be335b7 36 led = 1;
Gijsvanoort 0:fca53941e5d5 37
Gijsvanoort 0:fca53941e5d5 38 while (true)
Gijsvanoort 0:fca53941e5d5 39 {
JasperFix 1:fd5f5be335b7 40
JasperFix 1:fd5f5be335b7 41 gpo = 0; // Turn led on
Gijsvanoort 0:fca53941e5d5 42 wait_us(on_time_us);
JasperFix 1:fd5f5be335b7 43 gpo = 1; // Turn led on
Gijsvanoort 0:fca53941e5d5 44 wait_us(off_time_us);
JasperFix 1:fd5f5be335b7 45 //pc.printf("potmetervalue %d",pwm_pct)
Gijsvanoort 0:fca53941e5d5 46 }
Gijsvanoort 0:fca53941e5d5 47 }