A buzzer has two pins, namely positive and negative. The positive terminal is represented by the ‘+’ symbol and negative terminal is represented by the ‘-’ symbol just like an led and a capacitor.

The SparkFun_Qwiic_Buzzer_Arduino_Library (BOB-24474) adds simple beeps and buzzes to your projects via I2C. Make some noises to alert you when something interesting ...

RFID Module: Reads the UID from an RFID tag/card. If the UID matches the authorized UID, access is granted. This project is open-source and can be freely used for educational purposes. I demonstrate ...

Patrick Thomas Mitchell has returned to Kickstarter once again for his 36 entrepreneurial crowdfunding project and this time introducing, The Butler. An educational talking Arduino computer set based ...