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I've been unable to locate a temperature calibration routine or method for the HE280.
Is that because I'm dumb or there just isn't one?

At the moment from my measurements (Using one of these: http://www.longacreracing.com/products. ... +Pyrometer ) it reads to be approx 20c cooler than the target temp.

after doing M303 S200 PID autocalibrate, I've been getting values that are close to the firmware defaults anyway. However, mine doesnt work so