sensor

Pressure sensor MPX4115 interfacing with 8051

Submitted by staff member on Thu, 01/15/2015 - 21:20

MPX4115 a motorola pressure sensor is powered by 5V and delivers output voltage ranging from 0.25V to 4.75V corresponding to pressure 15Kpa to to 115Kpa resprctively.sensor detects pressure produces corresponding voltage which later converted into 8-bit binary number by ADC0804  and passes an accordingly scaled voltage to microcont

IR Sensors (Infrared Sensors)

Submitted by Ankit on Sat, 09/27/2014 - 18:33

IR ( Infra Red ) Sensors

An IR or Infrared sensor is an electronic instrument that is used to sense motion or any changes of its surroundings by either emitting or detecting infrared radiation. It can also measure heat of an object and detecting motion. Infrared waves are not visible to the human eye. 

LM35 Temperature Sensor

Gargi-arya's picture
Submitted by Gargi-arya on Sat, 09/27/2014 - 18:26

TEMPERATURE SENSOR

As we all know what does a temperature sensor do. In simple words these are devices used to measure the temperature or heat of a medium. 

LM34 Temperature Sensor

Submitted by Ankit on Sat, 09/27/2014 - 18:24

The LM34 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Fahrenheit temperature. The LM34 thus has an advantage over linear temperature sensors calibrated in degrees Kelvin, as the user is not required to subtract a large con-stant voltage from its output to obtain. Low cost is assured by trimming and calibration at the wafer level.

Counter Visitor

Submitted by staff member on Fri, 09/26/2014 - 13:11

the system counts entering and exit of visitor of an auditorium or some other places.the system identifies the entry and exit of visitor with help of IR sensor placed at entry and exit of visitor and delivered the result to LCD.if the people enter it is sensed b

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