DIY temperature controller set

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Re: DIY temperature controller set

Postby ober » Wed Oct 20, 2010 8:54 pm

atai WROTE:Hi can u guys help me..I want to do a temperature and humidity sensing.should I combined PR11 and PR15 or should I only add humidity sensor to PR11.?may i know how to do the modification.TQ


it depends on what you need, PR15 is just displaying the reading, there is no fan output, while PR11 have. Both temperature sensor, LM35 and the humidity sensor is just analog output sensor. Using any microcontroller with analog input can read these sensors.
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Re: DIY temperature controller set

Postby atai » Thu Oct 21, 2010 9:16 am

Actually I need temperature and humidity sensor as an input while fan as an output.may I know how to do the modification on PR11?TQ
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Re: DIY temperature controller set

Postby robosang » Fri Oct 22, 2010 8:00 pm

atai WROTE:Actually I need temperature and humidity sensor as an input while fan as an output.may I know how to do the modification on PR11?TQ


Modify the schematic first then from there try to modify the circuit that you have.
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Re: DIY temperature controller set

Postby akikito » Fri Oct 29, 2010 12:50 pm

if i do some modification,do i need to add A2D circuits?
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Re: DIY temperature controller set

Postby shiyan » Fri Oct 29, 2010 8:28 pm

akikito WROTE:if i do some modification, do i need to add A2D circuits?


Curious to know, is A2D referring ADC? Er.... if need more, just connect it.... why you need to wait? Just do it! Nike!
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Re: DIY temperature controller set

Postby akikito » Sun Oct 31, 2010 5:21 pm

can explain to me what is the function of variable resistor in this circuit? for offset/preset 1?
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