I'm building a small outdoor bread oven and will be using the MAX6675 amplifier and 4 of the Type-K Glass Braid Thermocouples to monitor the heat profile (Arduino with a Data Logger Shield / LCD, etc...). Is there some method of electronically switching between multiple thermocouples attached to a single MAX6675? I've seen a suggestion in this forum that it may not work. If that doesn't work is my best bet to have 4 MAX6675's attached to the Arduino?
Thx
MAX6675 & multiple thermocouples
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adafruit_support_bill
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Re: MAX6675 & multiple thermocouples
Multiplexing between thermocouples is not recommended. 4 separate amplifiers is the way to go. You can connect 4 of our MAX6675 breakout boards. You may also want to consider one of the multi-channel boards from Ryan McLaughlin. http://store.ryanjmclaughlin.com/
Please be positive and constructive with your questions and comments.