Description

Sound effect has been used in many products, such as anti-theft alarm, door bell, toy, etc. This sound effect module uses the highly integrated HT45F2022 MCU to generate sound effects. The electronic circuit is concise and the power consumption is low. This module has built-in 18 sound effects at the factory. Users can just insert batteries and start using this module.

This module has the following main functions:

1. One buzzer with the volume up to 120dB
2. One button to switch sound effect
3. Vibration sensor to trigger sound effect when vibration is detected
4. LED alarm indicator can flash along with sound effect playing
5. Programming pins to download sound effects (with e-Link used)

Holtek provides a powerful sound effect development platform Sound Effect Generator Wizard. This software can work with this sound effect module to customize your sound effect module easily. Dozens of sound effects can be downloaded and you can even design your own sound effects.

This module can be used independently without the need of an external controller such as Arduino or other microcontrollers. It can also be controlled by external devices. We provide an Arduino example code to demo the function of vibration trigger and sound effect switching.