Buzzer for Arduino (Passive and Active ) Size:Active and temperature sensor module with

and temperature sensor module with I2C and SPI interfaces

5V 1-Channel Relay interface board and each one needs 15-20mA Driver Current

10 mpa > 10 l/min

MOTORB reverse engine

Fine workmanship and good performance

Buzzer for Arduino (Passive and Active ) Size:Active and temperature sensor module withA buzzer or beeper is an audio signaling device, which may be mechanical, electromechanical, or piezoelectric. Typical uses of buzzers and beepers include alarm devices, timers and confirmation of user input such as a mouse click or keystroke. Buzzer is an integrated structure of electronic transducers, DC power supply, widely used in computers, printers, copiers, alarms, electronic toys, automotive electronic equipment, telephones, timers and other