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Forum: ARM programming with GCC/GNU tools Tmperature control using ARM7


von Dharmendra V. (dharmendra)


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Hi  ALL,



I wanted to develop circuit for temperature cotrol based on ARM7
controller. what controller i supposed to used of philips.



From where do i get circuit diagram or any clue?



Thanks in Advance.



Dharmendra

von Martin Thomas (Guest)


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Which temperature sensor?

von Dharmendra V. (dharmendra)


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Martin Thomas wrote:
> Which temperature sensor?

Any one of Thermocouple, RTD or Thermister.
ther is no specification yet come. so you can help me
for any one above mention

dharmendra

von Martin Thomas (Guest)


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Dharmendra Vasadia wrote:
> Martin Thomas wrote:
>> Which temperature sensor?
>
> Any one of Thermocouple, RTD or Thermister.
> ther is no specification yet come. so you can help me
> for any one above mention
>
> dharmendra

To get started:
- use a simple NTC-Resistor
- create a voltage-divider with it
- connected it the an AD-Converter either the internal ADC if the
controller has one or use an external ADC with a digital interface like
SPI or I2C.

You may also check sensors with digital interface like i.e. the DS1820
(onewire), SHT75 (with humidity, special protocol), several with SPI
and/or I2C from ADI.

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