ESP32
DHT22
BMP180
Using Arduino DHT22 and BMP180 sensors connected to an ESP32 Board, I will show you how to read environmental data as Temperature, Humidity, Atmospheric Pressure and Altitude ! (might add more sensors in the future for Luminosity, Rain, UV, etc.)
Project Name
ESP32 Weather Station
Project Type
Home Automation
Required Hardware and Software
For this project, you will need the following Hardware:
- 1x ESP32 Development board
- 1x DHT22/AM2302 Humidity & Temperature sensor
- 1x BMP180 Barometric Pressure Sensor
To programm the ESP32, I will use Arduino IDE
Wiring
First things first, the wiring!
Following manufacturers specs, here is the proper wiring for the two sensors and the ESP32 Development Board:
| ESP32 | BMP180 | DHT22 |
| 3V3 | VIN | VIN |
| GND | GND | GND |
| 13 | DATA | |
| 21 | SDA | |
| 23 | SCL |
Be careful to use the 3V3 pin on the ESP32 as the BP180 breakoutboard does not handle voltage over 3.6V !
Code
Code to be uploaded to the ESP32 Development board via Arduino IDE
Here is what you should get in Arduino IDE Serial Terminal
In Part 02, we will see how to publish datas on a Local LAMP stack running on a Raspberry Pi 4
Kepp Posted !
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Contact Us
Phone
(255) 352-6258
