A59A thermal sensor module temperature sensor module thermistor thermistor sensor

A59A thermal sensor module temperature sensor module thermistor thermistor sensor
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A59A thermal sensor module temperature sensor module thermistor thermistor sensor
A59A thermal sensor module temperature sensor module thermistor thermistor sensor
A59A thermal sensor module temperature sensor module thermistor thermistor sensor
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Purpose :
Temperature detection , temperature control sensors , ambient temperature detection
Module features :
1, NTC thermistor sensor , good sensitivity
2 , the comparator output signal clean, good waveform , driving ability , than 15mA.
3 , adjust the temperature distribution position detection threshold
4 , operating voltage 3.3V-5V
5, the output format: digital switching output ( 0 and 1 )
6 , a fixed bolt holes for easy installation
7 , a small PCB board size : 3.2cm x 1.4cm
8, using a wide voltage comparator LM393

Module Description
A thermistor module is very sensitive to the ambient temperature , generally used to detect the temperature of the surrounding environment ;
2 , through the potentiometer adjustment, you can change the temperature detection threshold ( ie, temperature control value ) , such as the need to control the ambient temperature is 50 degrees , the module is in the corresponding ambient temperature to which the green light , DO output high when the level falls below the set temperature value, the output is high , the green light does not shine ;
3, DO output can be directly connected to the microcontroller through the microcontroller to detect high and low , thereby detecting temperature changes in the environment ;
4, DO OUR outputs can directly drive a relay module , which can be composed of a thermostat switch , temperature control work -related equipment can also be connected to the cooling fan , etc ;
5 , the temperature detection range of the modules 20 to 80 degrees Celsius;
6, the module can be replaced with a line temperature sensor for controlling the water temperature , water and the like.

SCM test program

/ ******************************************
Shenzhen Yu-song Electronics Co.
Sensors trigger test
SCM : STC89C52
Baud Rate: 9600
Usage: temperature detection .
***************************************** /
#include
unsigned char date;
#define uchar unsigned char
#define uint unsigned int
sbit key1 = P0 ^ 1;

/ * Function declared ———————————————- – * /
void delay (uint z);
void Initial_com (void);

// **************************** ***********

/ *
************************************************** ******************************
** Function name : delay (uint z)
** Function: delay function
************************************************** ******************************
* /
void delay (uint z)
{
uint i, j;
for (i = z; i> 0; i–)
for (j = 110; j> 0; j–);
}

// ************************************************************

Serial port initialization function // ***** ***********

// ************************************************************
void Initial_com (void)
{
EA = 1; // open global interrupt
ES = 1; // allow serial port interrupt
ET1 = 1; // Enable the timer interrupt T1
TMOD = 0x20; // timer T1, an interrupt is generated baud rate in Mode 2
PCON = 0x00; // SMOD = 0
SCON = 0x50; // timer control by way of a
TH1 = 0xfd; // set the baud rate 9600
TL1 = 0xfd;
TR1 = 1; // start timer T1 run control bit

}

// ************************************************************
The main function // ********** *********
// ************************************************************
main ()
{
Initial_com ();
while (1)
{

if (key1 == 0)
{
delay (); // jitter elimination
if (key1 == 0) // confirm trigger
{
SBUF = 0X01;
delay (200);

}

}

if (RI)
{
date = SBUF; // SCM accept
SBUF = date; // send SCM
RI = 0;
}

}
}

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