DS2760 Thermocouple
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I have a basic stamp2 and recently bought DS2760 Thermocouple Kit but it is not compatable with the code. Can someone help me with a simple code which i can try to use. I want to use the basic stamp to heat· an element (heat sealer) sense the temp and shut off when it reaches a certain temp and turn on when the temp get down to set point temp. i am thinking of using a solid relay for on and off.
I welcome any suggestion and a code too if possible.
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I welcome any suggestion and a code too if possible.
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Comments
The Thermocouple itself (hardware) is not compatible with the BS2, since the DS2760 is a 1-Wire device and requires a BASIC Stamp Module which supports that. As per the web page a BS2p series Module is required to use the Thermocouple.
http://www.parallax.com/detail.asp?product_id=28022
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Chris Savage
Parallax Tech Support
We are an all women's engineering team working on a robotics project for our school. Parallax has generously donated a BOE and BS2 to our cause (thank you!). We have tried using the AD592 temperature probe with our BS2, but due to the higher thermal mass than a thermocouple, the AD592 response time is too low for the competition we are preparing for.· We were hoping to use some thermocouples from our school lab. Unfortunately, from the post below, unless there is now a way to make a thermocouple talk to our BS2, it looks like we will need a BS2p module instead?· Is there any way to exchange the donated BS2 for a donated BS2p?
Thanks in advance!
The Maxim/Dallas DS2482-100·converts 1-wire to I2C and the DS2480B converts to logic-level RS232.· Stamp-wise, the I2C protocol can be bit-banged using SHIFTOUT and the RS232·version can use SEROUT.· I don't know if anyone has created code to talk to these devices yet, but there is code that covers·I2C communication, so look closely at the chip's datasheets and other technical info.
Another way to go is to obtain a different temp sensor that can be used directly with the Stamp.
You may also want to check out the information at EME Systems.· There's a whole section covering thermocouples and temp sensing with Stamps:· http://www.emesys.com/BS2index.htm
I hope this helps!
I'd be happy to donate a MAX6674 to your effort. I have those mounted on a small circuit board with connections on one side for the thermocouple (type k) and on the other side for the SPI connection compatible with the BS2. I use 7x30 stranded type K wire, and bring out only one strand at the end. Very fast response and effective for surface temperature monitoring.
Circuit and sample code here
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Tracy Allen
www.emesystems.com