# Ethernet W5100 Shield with SD card & I2C 2004 LCD + RTC do not work together

**URL:** <https://forum.xod.io/t/ethernet-w5100-shield-with-sd-card-i2c-2004-lcd-rtc-do-not-work-together/1622>\
**Category:** Uncategorized\
**Created:** [December 27, 2018, 2:13am UTC](https://forum.xod.io/t/ethernet-w5100-shield-with-sd-card-i2c-2004-lcd-rtc-do-not-work-together/1622 "2018-12-27T02:13:24Z")\
**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, 2018, 5:18am UTC](https://forum.xod.io/t/ethernet-w5100-shield-with-sd-card-i2c-2004-lcd-rtc-do-not-work-together/1622/2 "2018-12-27T05:18:14Z")

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hi, check if something like this works [DHT22 on I²C Led display only sends ERR (reads 0.00)](https://forum.xod.io/t/dht22-on-i-c-led-display-only-sends-err-reads-0-00/1594/2)  
use the pulse to update the lcd

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_[View the full topic](https://forum.xod.io/t/ethernet-w5100-shield-with-sd-card-i2c-2004-lcd-rtc-do-not-work-together/1622)._