# DS18B20 not functioning

**URL:** https://discourse.nodered.org/t/ds18b20-not-functioning/68769
**Category:** Hardware
**Created:** [9 October 2022 15:51 UTC](https://discourse.nodered.org/t/ds18b20-not-functioning/68769 "2022-10-09T15:51:22Z")
**Posts on this page:** 1
**Showing post:** 8

<div class="post-metadata">

### Author: ![fpfeifer](https://avatars.discourse-cdn.com/v4/letter/f/f19dbf/32.png) [@fpfeifer](https://discourse.nodered.org/u/fpfeifer)
#### Post date: [9 October 2022 18:54 UTC](https://discourse.nodered.org/t/ds18b20-not-functioning/68769/8 "2022-10-09T18:54:57Z")

</div>

I'll try 1.5k tomorrow and report back.

I'm just surprised that when I clamp a new sensor and an old one together, it doesn't work and when I take two old ones or two new ones, it works. Then it can't normally be due to the resistance?!

---

_[View the full topic](https://discourse.nodered.org/t/ds18b20-not-functioning/68769)._