Arduiono uno + Snap4arduino+Grove kit

Am new to this form. I would like some help if anyone can give advice. I am using snap4arduino along with an arduino uno and a grove kit/shield. I have a Mq9 sensor for detection gas and I want an led light to turn on whenever there is gas present. It is basically a simple gas alarm.
I tried to get the light to come on when I exposed gas to the sensor but nothing happened. I cannot see where I am going wrong....I noticed that the sensor got very hot when i hooked it all up....and I read that temperature can affect performance but I do not know how to proceed.
I would appreciate any help/advice that good be given.
Thank you

this is the first I have head about programming an Arduino (or anything) with snap

read how to use this forum and #7 about posting code.
then post your code.
also, make a simple hand schematic and post that.

read the data sheet on the expected temperature of the sensor.
they do use a lot of power, so heat might be expected.

Welcome to the forum.

Please read the first post in any forum entitled how to use this forum.,148850.0.html then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.

Thanks.. Tom.. :slight_smile: