In this short instructable i will show you how to monitor the air qulaity at your home or anywhere.
It is quite easy to assemble this budget price air quality monitoring station.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: Google Is Your Friend
I have ordered this sensor from Aliexpress a few months ago and i did not have much free time to play with it. To be honest, i could not achive the desired result i have wanted. I was searching the internet for a proper article.
A few hours of serching i found 2 of them:
The second tutorial is very detailed and has a lot of explanation of what is what.
Step 2: Material
The parts needed for this project:
- Any arduino board
- DSM501A dust sensor
- Nokia 5110 LCD
- A few F-M jumper wires
Step 3: Software and Connections
VCC 3.3 V
BL 3.3 V
1 pin Not used
2 pin PM 1.0 Digital 5 (PWM)
3 pin Vcc 5 volts
4 pins PM 2.5 Digital 6 (PWM)
5 pin Ground
If you have compiling errors, pls copy sketch to a new tab without saving and then try again.
Step 4: Air Monitoring in Action
After assembling i took the opportunity to test it. So i went outside to the shades and waited. It takes about a minute for the sensor to warm up. Pls avoid using the sensor in direct sunlight!
I used and arduino uno with an acrillic box on purpose. I did not wanted to place it on directly on a table, avoid anything that can interrupt the PWM signal.
I have experimented with a aerosol , blowing smoke towards the sensor, which has reacted very fast. The sampling time was reduced to 10 seconds. I think that peroid of time is perfect for it.
I am not sure or don't know how accurate this sensor is, but for experimenting or for hobby projects i think it acceptable.
Pls experiment with it too.
Step 5: Future Plans
I am planning to remake this with a ESP8266. The plan is a color TFT LCD and data upload to Thingspeak or other databases. As soon i finish with it(50% is done) i will update it.
Step 6: Disclaimer
I do not own this software! I just added a few lines of code to display the results!
Step 7: Done!
You are done. Have a good time experimenting with it!
Have a nice day!