Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

Measuring gas concentration with an MQ sensor in MySensors setup?

Aria James last edited by

Hi everyone! I’m putting together a MySensors node and want to measure gas levels (like smoke or CO) using an MQ-series gas sensor, then send that data over MySensors radio to my controller. I found this tutorial explaining the MQ Gas Sensor series (MQ-2, MQ-3, etc.), covering their working principles and interfacing with microcontrollers:
https://www.theengineeringprojects.com/2024/04/mq-gas-sensor-series.html
I also checked example sketches on GitHub for MQ sensors with ESP modules, and read a blog post comparing different gas sensors in home air quality projects. Has anyone integrated an MQ sensor into a MySensors network? What resistor, calibration, or data smoothing tips worked best for you?
Reply Quote 0
1 Reply Last reply

1
Posts

2
Views

Suggested Topics

Over the air updates
General Discussion • • ToSa

87

1
Votes

87
Posts

50415
Views

I would really like to get OTA working here as it's freezing outside and I have to go there to update the software in the greenhouse control system. So please, can we have a 'how to' step-by-step guide to OTA? Please? S.
Support for CC1101 radios
Hardware • • buxtronix

2

2
Votes

2
Posts

25
Views

Nice. I know there are RFM69's, but I've seen quite a few requests for the CC1101. Always good to have options. I did something similar with the WIO-E5 chips in my repo. The E5 is not quite ready for prime time, but the basics are working. I have many MySensors nodes, and still adding more. Good to see some new code for it.
LGT8F328P and MySensors
Hardware • • A Former User

5

0
Votes

5
Posts

28
Views

The KooLru Library (https://github.com/KooLru/MySensors/tree/LGT8F) worked. It would be nice to have it included in the normal MySensors Library
Sensor to detect marijuana vape/smoke
Hardware • • Hellmark

4

0
Votes

4
Posts

35
Views

There are air quality monitors that can detect VOCs (volatile organic compounds), and some that claim to pick up marijuana smoke specifically. Devices like the Airthings Wave Plus, uHoo Air Sensor, or Plume Labs Flow could help identify changes in air quality. Another option is checking with industrial-grade smoke detection companies that provide sensors for businesses and schools, and some of them may also have solutions suited for home use. If you want more information on vape-related products, including how they work and their components, check out Geek Bar Pulse X Platinum Edition. Understanding vape devices can help recognize patterns of use or detect scents earlier.
Cannot find the board: "Arduino Mini pro MYSBootloader"
Hardware • • juanmrodrigues

3

0
Votes

3
Posts

15
Views

@OldSurferDude Thanks! I didn't touch the Arduino IDE for a while and forgot that the MYSBootloader doesn't come included in the Mysensor's library... My bad. Thanks for the link! I should had searched first... I use the OTA feature since 2017... It works well. So well that I forgot how to load the bootloader... Regards!
Newbie: confused by the jargon, needing simple guidance...
Hardware • newbie • • Meldrew's mate

6

0
Votes

6
Posts

32
Views

Gawd bless ya @OldSurferDude , that just about answered every question I have to date, I especially thank you for indicating whether the item named is a software or hardware product. On reading into the Cerbo GX capabilities I was very impressed with its sophistication and, just as you said, I will have to break the complicated parts down into bite-sized pieces and build from there. It started with an idea for a project, essentially to take data on battery state of charge (SoC) from the Cerbo GX and use an Arduino Nano or ESP8266 to build a strategy so that I would have sufficient hot water in the morning, consistent with having enough battery power left in the evening. Only on further inspection did it occur that the Node Red software built into the Cerbo GX could do this for me...and thus the possibility that a wireless hot water temperature sensor (transducer) could be fabricated to feed that data into the Cerbo GX; hence my path to here. I've dabbled in programming in C, mainly through the Arduino IDE, and in a previous life part of my work involved programming PLCs for industrial automation, so I am somewhat familiar with 'tech', but I lost interest once most systems seemed to go Windows based. In the intervening years the 'tech' has moved on apace and has left me behind, which is why I've struggled to follow the jargon, akin to trying to fit the second piece in a large jigsaw puzzle. Once the fundamentals are there I'll catch on. So please, kind contributors, be tolerant of the silly questions we newbies ask, we won't always be newbies, and I'll be back for sensors stuff once I've tamed the red-hot node and sorted out my LBQTTs Best wishes....MM