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.

Arduino Nano 33 IOT has a WiFi module that is used in this project. Arduino can make a phone call on the smartphone. The WiFi module is exploited, in fact, because Arduino makes a POST HTTP request ...

If you’re bit-less, they’re also now selling an Arduino-centric starter kit with the Arduino module and 8 others (a battery, a few switches, a servo, and a control dial) for $89.