/*********************************************************************************
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* Copyright: (C) 2018 LingYun IoT System Studio
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* All rights reserved.
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*
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* Filename: beep.h
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* Description: This file is used to control Passive buzzer or Active buzzer
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*
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* pi@raspberrypi:~ $ gpio readall show BCM and wPi pinmap
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*
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* VCC ---- 5V/3.3V
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* GND ---- GND
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* I/O ---- GPIO.18 ---- GPIO.1
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* BCM wPi
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*
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* Version: 1.0.0(2018/10/14)
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* Author: Guo Wenxue <guowenxue@gmail.com>
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* ChangeLog: 1, Release initial version on "2018/10/14 12:13:26"
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*
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********************************************************************************/
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#ifndef __BEEP_H
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#define __BEEP_H
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#define OFF 0
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#define ON 1
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//#define CONFIG_ACTV_BEEP
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#define BEEP_FREQ 2400
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/* Use Pin12 == GPIO18(BCM) == GPIO.1(wPi) */
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#define PWM_PIN 1
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int turn_passive_beep(int cmd, int freq);
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int turn_active_beep(int cmd);
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/* Only passive buzzer can play tone */
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#ifndef CONFIG_ACTV_BEEP
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void play_little_star(void);
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#endif
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#endif
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