This project demonstrates how to use a buzzer module with an Arduino Nano to produce sound or generate alerts. Buzzer modules can be either active or passive, each requiring different driving methods.

Snap a power module to a motion trigger module, snap the motion trigger to the buzzer module, and you’re done. ... This morning, littleBits is introducing an Arduino module into the mix.

This shield includes connections to an alarm system, a GSM modem, temperature and humidity sensors, an Ethernet module, and IR movement sensors. This Arduino Mega attaches to a control box mounted ...