Charles Tritt / Mbed OS 21_Speaker_v5

First version. Demo of PWM setup and speaker operation. Fine grain control of the PWM parameters is an advantage Mbed has over the Arduino environment.

main.cpp@105:ed03c03b353e, 2019-11-19 (annotated)

Committer:
mbed_official
Date:
Tue Nov 19 15:00:03 2019 +0000
Revision:
105:ed03c03b353e
Parent:
104:f2805e857b14
Child:
107:61b9c99a4e27
Corrected code snippet rendering on README. (#197)





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Commit copied from https://github.com/ARMmbed/mbed-os-example-blinky

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 82:abf1b1785bd7 1 /* mbed Microcontroller Library
mbed_official 102:6979ad8bc0bc 2 * Copyright (c) 2019 ARM Limited
mbed_official 82:abf1b1785bd7 3 * SPDX-License-Identifier: Apache-2.0
mbed_official 82:abf1b1785bd7 4 */
mbed_official 82:abf1b1785bd7 5
Jonathan Austin 0:2757d7abb7d9 6 #include "mbed.h"
mbed_official 100:ec006d6f3cb6 7 #include "platform/mbed_thread.h"
Jonathan Austin 0:2757d7abb7d9 8
Jonathan Austin 0:2757d7abb7d9 9
mbed_official 102:6979ad8bc0bc 10 // Blinking rate in milliseconds
mbed_official 105:ed03c03b353e 11 #define BLINKING_RATE_MS 500
mbed_official 88:bea4f2daa48c 12
mbed_official 102:6979ad8bc0bc 13
mbed_official 82:abf1b1785bd7 14 int main()
mbed_official 82:abf1b1785bd7 15 {
mbed_official 102:6979ad8bc0bc 16 // Initialise the digital pin LED1 as an output
mbed_official 102:6979ad8bc0bc 17 DigitalOut led(LED1);
mbed_official 82:abf1b1785bd7 18
Jonathan Austin 0:2757d7abb7d9 19 while (true) {
mbed_official 102:6979ad8bc0bc 20 led = !led;
mbed_official 102:6979ad8bc0bc 21 thread_sleep_for(BLINKING_RATE_MS);
Jonathan Austin 0:2757d7abb7d9 22 }
Jonathan Austin 0:2757d7abb7d9 23 }