5pcs Passive Buzzer Module For Arduino 3 Pin Low Level Modules
- Passive buzzer without oscillating source inside, so if you use DC signal, you can't make it scream. It must be driven by a square wave of 2K~5K.
- The module is driven by 9012 transistor.Uses 3 pin control port.
- The sound frequency is controllable, and the effect of ''do re mi fa so la si do'' can be made.
- Equipped with fixture nuts for convenient mounting.
- In some special cases, a control port can be multiplexed with the LED.
