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PROJECT DESCRIPTION

This practical temperature controller controls the temperature of any device according to its requirement for any industrial application. It also displays the temperature on an LCD displays in the range of –55°C to +125°C. At the heart of the circuit is the microcontroller from 8051 family which controls all its functions.

An IC DS1621 is used as temperature sensor. The DS1621 Digital Thermometer and Thermostat provides 9-bit temperature readings, which indicate the control of temperature of the device. User-defined temperature settings are stored in a nonvolatile memory EEPROM through 8051 series microcontroller.

Maximum and minimum temperature settings are entered to the MC through a set of switches which are stored in the EEPROM -24C02.Maximum and minimum setting are meant for allowing any hysteresis necessary. Set button is used first and then the temperature setting by INC and then the enter button.

Similarly for the DEC button. A relay is driven from the MC through a transistor driver. The contact of the relay is used for the load, shown as a lamp in the circuit. For high power heater load a contactor may be used, the coil of which is operated by the relay contacts in place of the lamp as shown.

Standard power supply of 12 volt DC and 5 volt through a regulator are made from a step down transformer along with a bridge rectifier and filter capacitor.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Industrial Programmable Temperature Controller.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Industrial Temperature Controller
Hardware Requirements
  • Transformer
  • Voltage regulator
  • Diodes
  • Capacitor
  • Resistors
  • Microcontroller (AT89S52)
  • Temperature sensor (DS1621)
  • BC547
  • Relay
  • Lamp
  • LCD (16x2)
Software Requirements
  • Keil compiler
  • Embedded C
OTHER INFORMATION
Battery not included in the kit due to Courier service prohibition. Please buy four AA CELL 1.5V batteries for this project.
Q & A
Q:  What is the temperature sensor is used in this project?
A:  Temperature sensor used is IC DS1621
Q:  Will it sense the body temperature or surrounding?
A:  The IC senses only the surrounding temperature. However the body temperature can be sensed by connecting the IC to a wrist strap.
Q:  How to set the temperature?
A:  Using push button and operation procedure provided with the kit, one can set the temperature.
Q:  Which microcontroller is used in this project?
A:  A 40 pin microcontroller from 8051 family is used in this project.
READ WHAT OTHERS HAVE SAID
Average Rating
 3.9/5
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Showing 3 of 3 reviews
Saif AL-Ghafri, Oman on 12th November, 2014, 07:03 PM

it is very good project

Mahendrasingh, Jalgaon, Maharashtra on 1st June, 2014, 12:25 PM

product is very good ,,,,

but price not affordable

ravi, on 14th February, 2013, 11:55 PM

awesome work

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