Re: Arduino + MCP9600 + thermocouple help needed

"Richard Smith"  wrote in message news:m1v85j8ast.fsf@void.com...
The "breakout board" can be seen here
https://shop.pimoroni.com/products/mcp9600-thermocouple-amplifier-breakout?variant=21439215272019
"MCP9600 Thermocouple Amplifier Breakout"
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I didn't see a schematic and the MCP9600 has no INT pin, maybe it's an Interrupt that can be connected to one of the Alarm pins to trigger the controller to immediate action, like shutting off a heater.
An Interrupt is a hardware input that immediately jumps the program counter to a specific location, to run (or redirect to) a routine that handles whatever triggered it. The alternative is sequentially checking the inputs and is usually fast enough, and simpler.
For US Type K thermocouples, red is (-) and yellow is (+).
https://temp-pro.com/2023/03/27/thermocouple-types-and-color-coding/
Extension wire is a cheaper version with a limited temperature range for accuracy. Knowing that got me spools of extension wire for $0.20 / Lb instead of $1 / foot, and I ran it from the woodstove all through the house to monitor the fire.