MQ7-POLLUTION MONITORING USING THING SPEAK AND NODEMCU
by Hariharan vs in Circuits > Wireless
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MQ7-POLLUTION MONITORING USING THING SPEAK AND NODEMCU
![IMG_20200103_231522.jpg](/proxy/?url=https://content.instructables.com/FZR/5D8O/K4UXT52U/FZR5D8OK4UXT52U.jpg&filename=IMG_20200103_231522.jpg)
The pollution is major problem of our today's world.
but how we can monitor our pollution near by, now its very easy
SO LET'S START:
NEEDED MATERIALS
![IMG_20200103_231615.jpg](/proxy/?url=https://content.instructables.com/FKG/VK1F/K4UXT58H/FKGVK1FK4UXT58H.jpg&filename=IMG_20200103_231615.jpg)
1. NODEMCU
2. MQ7-CO-SENSOR
3. JUMPERS
4. BUZZER
5. CONNECTING CABLE
6. MATCH BOX
CONNECTION
![IMG_20200103_231826.jpg](/proxy/?url=https://content.instructables.com/FGL/S4T0/K4UXT58W/FGLS4T0K4UXT58W.jpg&filename=IMG_20200103_231826.jpg)
1. connect NODEMCU -A0 pin to MQ-7 SENSOR-A0 pin
2.connect NODEMCU VCC pin to SENSOR-VCC pin
3.connect NODEMCU GND pin to SENSOR=GND pin
4. connect BUZZER +ve to NODEMCU D0 pin
5. connect BUZZER -ve pin to NODEMCU GND pin
CODING:
![download (2).png](/proxy/?url=https://content.instructables.com/F2B/4YE5/K4UXT60M/F2B4YE5K4UXT60M.png&filename=download (2).png)
![2020-01-03-23-37-49.png](/proxy/?url=https://content.instructables.com/F2V/YXHF/K4UXT51M/F2VYXHFK4UXT51M.png&filename=2020-01-03-23-37-49.png)
![2020-01-03-23-38-15.png](/proxy/?url=https://content.instructables.com/FFA/YSY3/K4UXT51P/FFAYSY3K4UXT51P.png&filename=2020-01-03-23-38-15.png)
![2020-01-03-23-38-23.png](/proxy/?url=https://content.instructables.com/F15/OQ1M/K4UXT51V/F15OQ1MK4UXT51V.png&filename=2020-01-03-23-38-23.png)
![2020-01-03-23-39-08.png](/proxy/?url=https://content.instructables.com/FGF/5U3P/K4UXT51J/FGF5U3PK4UXT51J.png&filename=2020-01-03-23-39-08.png)
1. open google or press this link thingspeak.
2.create an account on thingspeak.
3. create a new field on that.
5.Open API KEY sharing and copy the code
6.Paste in the arduino code..
7.change your ssid,password in code.
.
Downloads
LIBRARIES
thingspeak library: thingpeak
NODEMCU board preference :http://arduino.esp8266.com/stable/package_esp8266c...
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