Introduction: Air Quality Monitoring With DSM501A With Nokia LCD
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.
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!
3 years ago
Nice system. Thank you for sharing it, and for linking to the resources you found helpful :-)
Reply 3 years ago
Thank you for the kind words :)
First of all i was searching a proper method to monitor the air pollution with this sensor.
It is pointless to lie that:"i wrote this sketch......". :)
This is someone else's hard work and i respect it, the credit is not mine.
I am now working on the Esp8266 based version with a color TFT LCD combined with a bar chart, sensor data upload to thingspeak or MQTT. But sadly i don't have much free time because of work.