# IoT readings not returned to zero when no power

**URL:** <https://discourse.nodered.org/t/iot-readings-not-returned-to-zero-when-no-power/11756>\
**Category:** General\
**Created:** [1 June 2019 21:27 UTC](https://discourse.nodered.org/t/iot-readings-not-returned-to-zero-when-no-power/11756 "2019-06-01T21:27:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mshaz](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mshaz/32/2294_2.png) [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Post date:** [1 June 2019 21:27 UTC](https://discourse.nodered.org/t/iot-readings-not-returned-to-zero-when-no-power/11756/1 "2019-06-01T21:27:02Z")

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![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/7/7f51462c64ffce7211424593cd7da0b9b1177195.jpeg)

Hi I have data coming from thingspeak and when I pull the power off the data not returned to zero bcos of delay in sending data to node-red platform. How do I fix this ?

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**Author:** ![ukmoose](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ukmoose/32/13_2.png) [@ukmoose](https://discourse.nodered.org/u/ukmoose)\
**Post date:** [1 June 2019 21:29 UTC](https://discourse.nodered.org/t/iot-readings-not-returned-to-zero-when-no-power/11756/2 "2019-06-01T21:29:35Z")

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See this example in the cookbook

[https://cookbook.nodered.org/basic/trigger-placeholder](https://cookbook.nodered.org/basic/trigger-placeholder)