Mduoduo Active or passive Buzzer Module low -level trigger Bee Narrator Control Board

Feature *There is no volatile source inside the passive bee tweet module so if the DC signal is used it cannot be called. Must use 2K ~ 5K square wave to drive it *The sound frequency of the passive beeurge module is controllable and the effect of Dori Mi Fato Soracey can be made. *In some cases of passive bee tweet module you can reuse an control port with LED *A source of vibrations inside the bee lumator so as long as a power is powered it will be called *Easy to control the procedure of the bee lumator a single -chip machine can make it sound but the passive beeurine cannot be done. Specification Module: use 9012 triode driver Working voltage: 3.3V-5V Installation: There is a fixed bolt hole for easy installation Active small board PCB size: 2.8cm * 1.3cm Passive small board PCB size: 3.3cm * 1.3cm Note: The source here does not refer to the power supply. Instead it refers to the source of the shock. Module interface description (3 line system): 1 + external 3.3V -5V voltage (can be connected directly with 5V single -chip machine and 3.3V single -chip microcomputer); 2 -external GND3 out external single -chip microcomputer IO port. Package included 1*Activities or passive bee cryer module (select) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.