Vibration Sensor Module - SW-420

Detaljan Opis:

Upotreba:

For a variety of vibration the triggering effect reported theft alarm, smart car, earthquake alarm, motorcycle alarm.
Compared to the module with normally open type vibration sensor module, vibration, longer trigger relay module can drive

Značajke Modula:

• SW-420 using the company's production of normally closed type vibration sensor.
• The comparator output, the signal is clean, the waveform, the driving ability to exceed 15mA
• Operating voltage 3.3V-5V
• The output in the form: Digital switching outputs (0 and 1)
• A fixed bolt hole for easy installation
• Small board PCB size: 3.2cm x 1.4cm
• Wide voltage LM393 comparator

Instrukcije za upotrebu modula:

• The product does not vibrate, vibrate switch was closed conduction state, the output output low, the green indicator light;
• Product vibration, vibration switch instantly disconnect the output output high, the green light is not on;
• The output and the microcontroller is directly connected to the microcontroller to detect high and low, thereby detecting the vibration environment, play an alarm role

SCM test program:

Sensor trigger test
Single chip microcomputer: STC89C52
Baud rate: 9600
Product use: vibration induction trigger, alarm is triggered.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * /
> # include < reg52. H
Unsigned char date;
# define uchar unsigned char
# define uint unsigned int
Sbit key1 = P0 ^ 1;
/ * function declaration -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - * /
Void delay (uint z);
Void Initial_com (void);
/ / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
/ *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* * function name: delay (uint z)
* * function function: time delay function
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* /
Void delay (uint z)
{
Uint I, j;
For (I = z; I > 0; I -)
For (j = 110; j > 0; j --);
}
/ / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
/ / * * * * * * * * a serial port initialization function * * * * * * * * * * * * * * * * * * * *
/ / * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Void Initial_com (void)
{
EA = 1;/ / always interrupt
ES = 1;/ / allow the serial port interrupt
ET1 = 1;/ / allow the timer T1 interruption
TMOD = 0 x20; / / timer T1, baud rate in mode 2 interrupt
PCON = 0 x00; / / SMOD = 0
SCON x50 = 0; / / 1 is controlled by a timer
TH1 XFD = 0; / / the baud rate is set to 9600
TL1 = 0 XFD;
TR1 = 1;/ / open the timer T1 run control bits
}
/ / * * * * * * * * * * * * * * * * * * * * * * * * * * * *
/ / * * * * * * * * * * * * * the main function * * * * * * * * * * * *
/ / * * * * * * * * * * * * * * * * * * * * * * * * * * * *
The main ()
{
Initial_com ();
While (1)
{
If (key1 = = 1)
{
Delay (); / / jitter elimination
/ / if (key1 = = 1) confirm the trigger
{
SBUF = 0 x01;
Delay (200);
}
}
If (RI)
{
The date = SBUF; / / microcontroller to accept
SBUF = date; / / microcontroller send
RI = 0;
}
}
}