/************************************************ Description: 在arduino板上接蜂鸣器来生成各种声音反馈当前 arduinoMega2560的运行状态。 Author: www.corvin.cn History: 20180209: init this file; *************************************************/ void initSoundPin() { pinMode(SOUND_PIN, OUTPUT); } void basePowerOnBeep() { for (int i = 200; i <= 600; i++) { tone(SOUND_PIN, i); delay(3); } noTone(SOUND_PIN); } void basePowerOffBeep() { for (int i = 600; i >= 200; i--) { tone(SOUND_PIN, i); delay(3); } noTone(SOUND_PIN); }