# \[I want a node\] Supply read node for low battery indicator

**URL:** <https://forum.xod.io/t/i-want-a-node-supply-read-node-for-low-battery-indicator/3143>\
**Category:** Hardware Interfacing Questions\
**Created:** [December 27, 2019, 10:39am UTC](https://forum.xod.io/t/i-want-a-node-supply-read-node-for-low-battery-indicator/3143 "2019-12-27T10:39:17Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![cesars](https://avatars.discourse-cdn.com/v4/letter/c/f05b48/32.png) [@cesars](https://forum.xod.io/u/cesars)\
**Post date:** [December 27, 2019, 12:51pm UTC](https://forum.xod.io/t/i-want-a-node-supply-read-node-for-low-battery-indicator/3143/2 "2019-12-27T12:51:58Z")

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hi, some time ago I made two schmitt-trigger nodes (analog and digital) if you are interested in _cesars/utils_ library

> [@Schmitt trigger](https://forum.xod.io/t/schmitt-trigger/1357):
>
> I found several patches with hysteresis, I took some ideas and I made a node in C ++ … I’m still experimenting. Possibilities of joining nodes or making a new one, make XOD very interesting [SchmittTrigger.xodball](https://canada1.discourse-cdn.com/flex027/uploads/xod/original/1X/07081a72160bdaaae28918d96d8687250b0a0ec8.xodball) (5.8 KB)

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