Bram Jonkheer
/
Assignment1bioboard
1st part of the exercises
main.cpp
- Committer:
- bjonkheer
- Date:
- 2018-09-20
- Revision:
- 0:704340a59525
File content as of revision 0:704340a59525:
#include "mbed.h" #include "MODSERIAL.h" Ticker potmeterticker; DigitalIn button1(D2); DigitalIn button2(D3); AnalogIn potmeter(A0); DigitalOut led(D4); MODSERIAL pc(USBTX, USBRX); volatile float pwmvalue; volatile double pwm_pct; volatile int on_time_us; // The time the LED should be on, in microseconds volatile int off_time_us; void ReadPotmeterValues() { int frequency_Hz = 10000; pwm_pct = potmeter.read() * 100; on_time_us = (int) ((pwm_pct/100.0) * (1.0/frequency_Hz) * 1.0e7); off_time_us = (int) (( (100.0-pwm_pct)/100.0) * (1.0/frequency_Hz) * 1.0e7); } int main() { pc.baud(115200); pc.printf("Hello World!\r\n"); potmeterticker.attach(ReadPotmeterValues, 0.5); while (true) { led = 1; pc.printf("%i\r\n",on_time_us); wait_us(on_time_us); led = 0; // Turn led off wait_us(off_time_us); //ReadPotmeterValues(); } }