# Having some trouble with I2C MCP4725

**URL:** https://forum.xod.io/t/having-some-trouble-with-i2c-mcp4725/3944
**Category:** Hardware Interfacing Questions
**Created:** [May 12, 2020, 8:31pm UTC](https://forum.xod.io/t/having-some-trouble-with-i2c-mcp4725/3944 "2020-05-12T20:31:25Z")
**Posts on this page:** 1
**Showing post:** 7

<div class="post-metadata">

### Author: ![cesars](https://avatars.discourse-cdn.com/v4/letter/c/f05b48/32.png) [@cesars](https://forum.xod.io/u/cesars)
#### Post date: [May 13, 2020, 12:42pm UTC](https://forum.xod.io/t/having-some-trouble-with-i2c-mcp4725/3944/7 "2020-05-13T12:42:14Z")

</div>

MCP4725 nodes update when VAL changes.

But when both are at A1, both use the bus at the same time and it is blocked, so the defer delays one node.

Now A0 and A2 readings are in loop, it could update every a set time.

Can also set a time to A1, instead of a loop, you can use clock or throttle node.

---

_[View the full topic](https://forum.xod.io/t/having-some-trouble-with-i2c-mcp4725/3944)._