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This Project is used to indicate the temperature and it is also used as controller. The system will get the temperature from the IC and it will display the temperature over the seven segment display and this temperature was compared with the value stored by the user and if the Room temperature goes beyond the Preset temperature then an alarm is switched ON until the stop switch is pressed. The System is fully controlled by the microcontroller AT89C2051. It is a popular 8 bit microcontroller. The circuit consists of four switches, in which two buttons are used to increment and decrement the temperature value and the next button is to start the Thermostat function and the other button is used to stop the thermostat function. All the above functions are monitored and controlled by the 8 bit microcontroller AT89C2051.
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ExperimenterUK
Tue Jun 30 2015, 05:24 PM
@sachinmm The 8051 timer can't do 1 second. It can do 50ms so count 20 times
sachinmm
Sat Jun 27 2015, 05:01 AM
how calculate 1 second delay in 8051 by using timer and what value should be store in TH0 & TLO register??
sachinmm
Fri Jun 26 2015, 08:25 AM
hello sir plz tell me how to know the 74HC165 parallel in serial out ic is fauty or not?
Wed Jun 24 2015, 08:24 AM
ben mutuku
How can one use XOR gate to ensure the first output is '1' and the next is '0'?
ExperimenterUK
Wed Jun 17 2015, 01:37 AM
@baz..try adding a hash and a semi colon
Sun Jun 14 2015, 06:31 AM
baz
@ExperimenterUK no..i dont do that i just type message example.. Hello my name is baz and then i click send message,
ExperimenterUK
Sun Jun 14 2015, 01:55 AM
@baz..did you end your message with a hash and a semi colon
Sat Jun 13 2015, 06:48 PM
asif Jamadar
I want the program for v/f control technique of 3 phase induction motor
Sat Jun 13 2015, 07:06 AM
baz
@ExperimenterUK okay thank you...but now I already complete and my dot matrix already light up but when i send message from pc to my hardware project it doesnt show any message on my dot matrix..its only blinking when i click send message....I really dont know whats the problem...I had follow all the steps...schematic and use the coding that have been provided..is it because firstly i had wrong burn the coding in AT24C16?? Is that effect ????
ExperimenterUK
Sat Jun 13 2015, 12:08 AM
@baz Load the hex file into the at89c52, The at24c16 holds the message to display

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Mc_Comet32
Thu Jun 25 2015, 11:42 AM
yashaswi
Thu Jun 25 2015, 05:56 AM
Riki-cc
Tue Jun 23 2015, 10:48 AM
PadRlp
Thu Jun 18 2015, 02:11 PM
start
Thu Jun 18 2015, 01:30 PM
sheilabajos
Tue Jun 09 2015, 03:35 PM
martintan
Tue Jun 09 2015, 12:08 AM
karra.vnr
Tue Jun 02 2015, 03:41 PM

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ExperimenterUK Avatar
Posted By ExperimenterUK
Tue Jun 30 2015, 05:45 PM
The 8051 timer can't do 1 second. It can do 50ms, ...
ExperimenterUK Avatar
Posted By ExperimenterUK
Tue Jun 30 2015, 05:38 PM
Debugging is the process of finding out why your ...
ExperimenterUK Avatar
Posted By ExperimenterUK
Tue Jun 30 2015, 05:21 PM
You may have misunderstood some of the terms used....
Amit Kumar Das Avatar
Posted By Amit Kumar Das
Mon Jun 29 2015, 06:03 PM
Suppose the ILI9320 TFT LSB & MSB pins are con...
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Posted By prajwalsnh
Mon Jun 29 2015, 03:39 PM
Hello everyone,I wanted to know the basics of debu...
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Posted By prajwalsnh
Mon Jun 29 2015, 03:28 PM
Hello all,I wanted to know which is the default co...
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Posted By vipinpathakg
Sun Jun 28 2015, 12:57 AM
Three letters E,Z and I displaying completely but...
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Posted By pravin_35
Sat Jun 27 2015, 06:19 AM
Thanks ajay and Exp uk...i thought of getting Micr...
sachinmm Avatar
Posted By sachinmm
Sat Jun 27 2015, 05:09 AM
how calculate 1 second delay in 8051 by using time...
mayank058 Avatar
Posted By mayank058
Fri Jun 26 2015, 10:00 AM
dear Sir, This program is working on ...