使用蜂鸣器产生汽车警笛声 同时指示灯像警灯一样闪烁。-The use of siren buzzer motor vehicles produced at the same time as light as the lights flicker.

私人磁盘源码！可加密！带模块！保证无错！放隐私超好！-Private Disk Source! Can be encrypted! With the module! Ensure error-free! Put privacy super good!

SoundFX Player2.1 The program is used to play sound effects (Sound Effect) such as applause, siren, music, rhythm. And other sounds The MP3 file is suitable for use in festivals and general events. Including recreational use. To enhance color and en

When developing electronic devices, there is often a need to transmit any data over a certain distance. For example, a thermal sensor located on the street should transmit the temperature value to the central device, and the motion sensor should give