Dozing off in class and falling asleep in meetings? Prove why! Measure CO2 levels and publish to the cloud using anduinoWiFi and adafruitIO.
Project tutorial by Brian Carbonette
We're pretty good at maintaining our code base, not so much at maintaining our office plants. We use Arduino to keep our plants alive.
Connect your anduinoWiFi to IFTTT. Control everything around you, or 'let go' and let random events in cyberspace control your surroundings!
For 3D makers the worst thing is running out filament in the middle of a hours long print. This device will order for you when it is low!
Project tutorial by Bin Sun
You got it, thanks for the feedback!
Hey Michael and Craig! You make some great points! I'm in no way affiliated with the cozir sensor folks and agree it's a shame they're so expensive. What they do offer that those other sensors (linked above) do not is an incredibly easy to use interface and some great power requirements.
Calibrating takes hardly any effort (just a serial command - instead of manually turning a potentiometer) and no additional circuitry and load is required to process the analog signal, it all happens in the sensor package. This free's your micro up to take care of processing other things! The new ones also ship with Temp and Humidity included as well. The NDIR method also allows you to take insanely frequent readings so it increases your resolution and it runs at 3.3v pulling minimal current. This sensor requires 6v and pulls 200ma!(vs35ma) and literally has to warm up in order to kick off a chemical reaction that determines the reading.
This sensor coupled with a $5 ESP8266 would be your cheapest way to get CO2 data into the cloud for sure. There's a reason I specifically chose to use the Arduino Due coupled with the WiFi shield but that will have to wait until a future project post :-x Can't wait to share why!
I'm tracking the moisture of the soil. I map the reading into what I'm calling a "relative humidity". Typically relative humidity refers to moisture in the air but in this case I'm displaying a percentage that correlates to total saturation of the soil. My 100% value correlates to fully saturated, 0% completely dry.
I've calibrated these to the capacitance readings transmitted by the soil sensor. I talk about the calibration steps here
Great point about the enclosure! Time to get to the 3d printer and get this Anduino case printed!
Or connect with your social account:
New here? Create an account