The goal of this tutorial to build an ESP8266 controlled Christmas light strip with a special effect that usually can’t be found in standard LED controllers.
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A proper guide to the MQ9 Sensor
Many tutorials can be found for the Flying-Fish MQ9 sensor boards however the information found online is a bit fishy. Apparently many of those tutorials are copied from each other and I believe some parts of the explanation is missing. The goal of this post is to provide an explanation of how to get a (close to) real gas concentrate measurement. This tutorial can be used with any device that accepts MQ9 sensor boards like arduino, esp8266, esp32 etc..
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