# Tmp007. IR sensor used to check top surface of bed

**URL:** <https://klipper.discourse.group/t/tmp007-ir-sensor-used-to-check-top-surface-of-bed/4067>\
**Category:** General Discussion\
**Created:** [September 6, 2022, 9:30pm UTC](https://klipper.discourse.group/t/tmp007-ir-sensor-used-to-check-top-surface-of-bed/4067 "2022-09-06T21:30:56Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://klipper.discourse.group/u/jules)\
**Post date:** [September 7, 2022, 4:04pm UTC](https://klipper.discourse.group/t/tmp007-ir-sensor-used-to-check-top-surface-of-bed/4067/5 "2022-09-07T16:04:26Z")

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maybe some info for reading.

there are smart 🤓 people who made macro’s that used a bed sensor and a top sensor to calculate heat soak time

github: [klipper-voron2.4-config/heatsoak.cfg at mainline · garethky/klipper-voron2.4-config · GitHub](https://github.com/garethky/klipper-voron2.4-config/blob/mainline/klipper-config/heatsoak.cfg)

topic post for info : [Interruptible heat soak - #3 by elpeter](https://klipper.discourse.group/t/interruptible-heat-soak/1552/3)

the github version uses a extra sensor for calculating heatsoak

edit: after inspecting the topic i saw you also commented in there, little bit of old news then 😅

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