DHT22 Sensor - SD1306 i2c Display for quick time and temperature + data logging

Supplies

0.91" 128x32 IIC I2C Display

DHT22

ESP WROOM 32

Step 1: FLASH ESP32

Checkout the ESP32 Folder to your VSCode with PlatformIO installed as a dependancy.

Connect the USB from the ESP32 to your computer running VSCode/PlatformIO to build and deploy the project.

Clone the Github Project

https://github.com/khinds10/ESP32-Quick-Temp-and-Display

Configure your project

Located in the main src/ folder create a copy of settings.h from settings-default.h and set your custom values for the variables.

You can set WIFI (ssid, password), Timezone (gmtOffset_sec) and latitude, longitude where you live.

OPTIONAL DATAHUB

(datahub_host, device_name settings)

use https://github.com/khinds10/DeviceHub

to setup a custom datahub for your device to post temps as time goes on.

Get Outside weather

(weather_api_endpoint)

https://openweathermap.org/ account is required, the device will simply read from the default forecast returned from the API, it will also post it to the Datahub.

Step 2: Wire and Hot Glue the Components.

Step 3: WIRING

DHT22

[+] pin -> ESP32 [3V]

[-] pin -> ESP32 [GND]

[out] pint -> ESP32 [Pin 4]

SD1306

[+] pin -> ESP32 [3V]

[-] pin -> ESP32 [GND]

[SDA] pin -> ESP32 [Pin 21]

[SCL] pin -> ESP32 [Pin 22]

Step 4: 3D Print

3D Print the Box and back panel, use the hole on the side to run the USB to power the ESP32 inside the case.

ESP32 Quick Wall Temp

DHT22 Sensor - SD1306 i2c Display for quick time and temperature + data logging

Supplies