The passive bee tweet module low -level trigger the beeurge control board

Information download: http://pan.baidu.com/s/1hqbyzty

Now many people are not very clear about the concept of active beekee and passive bee tweet. I will make a brief introduction here. I hope it will be helpful to everyone in the future.

Note that the "source" here does not refer to the power supply.Instead, it refers to the source of the shock.

The characteristic of the passive beeuris is:
1 There is no shock source inside the passive, so if the DC signal is used, it cannot be called.Must use 2K ~ 5K square wave to drive it
2 The sound audio can be controlled and can make the effect of "more than Mi Fato".
3 In some special cases, you can reuse an control port with LED

The characteristic of the source beeur is:
1 The source of the source beeurizer is shocking source, so as long as one power is powered, it will be called
2 The program control is convenient. A single -chip machine can make a sound at a high and low level, but the passive beever cannot be done.
Each set of weight is about 6g

One module description
1 Module uses 9012 triode driver

2 Working voltage 3.3V-5V
6 There is a fixed bolt hole for easy installation
7 small board PCB size: 3.3cm * 1.3cm

Two module interface description (3 line system)
1 VCC external 3.3V-5V voltage (can be connected directly with 5V single-chip machine and 3.3V single-chip microcomputer)
2 GND external GND
3 I/O external single -chip machine IO port

Three delivery list

1 One piece of passive beeurite module (test passed)

2 Provide information download address (schematic diagram+instructions of usage+test program)