# Where to connect this probe on Ex controller

**URL:** https://forum.avidcnc.com/t/where-to-connect-this-probe-on-ex-controller/4157
**Category:** General Chat
**Created:** [December 31, 2024, 3:42am UTC](https://forum.avidcnc.com/t/where-to-connect-this-probe-on-ex-controller/4157 "2024-12-31T03:42:26Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![ROTM](https://avatars.discourse-cdn.com/v4/letter/r/90ced4/32.png) [@ROTM](https://forum.avidcnc.com/u/ROTM)
#### Post date: [December 31, 2024, 3:42am UTC](https://forum.avidcnc.com/t/where-to-connect-this-probe-on-ex-controller/4157/1 "2024-12-31T03:42:26Z")

</div>

I got a probe to try out…where can I find info in order to connect this

 ![prb](https://canada1.discourse-cdn.com/flex027/uploads/avidcnc/original/2X/7/76e23365e7a56a1fc17789a7853561e2663e9355.jpeg)  
3 wire probe to the Ex board?

Is there info available to connect the laser as well Opt laser15w?

Tnx!

---

<div class="post-metadata">

### Author: ![Eric](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.avidcnc.com/eric/32/3220_2.png) [@Eric](https://forum.avidcnc.com/u/Eric)
#### Post date: [December 31, 2024, 1:07pm UTC](https://forum.avidcnc.com/t/where-to-connect-this-probe-on-ex-controller/4157/2 "2024-12-31T13:07:20Z")

</div>

Centroid has schematics on how to connect various probes:

[https://www.centroidcnc.com/centroid\_diy/schematics/pbrowse.php?term=acorn%20probe](https://www.centroidcnc.com/centroid_diy/schematics/pbrowse.php?term=acorn%20probe)

The acorn board in the EX controller is mounted in such a way that you can easily access the screw terminals to wire the probe directly into it. The Avid wizard exposes all of the probe settings, and the “advanced” screen will allow you to configure any IO You need for the probe