ESP32 Display 2.8-inch HMI HomeAssistant Tutorial
Overview¶
In this tutorial, we will show you how to make a little system with ESPHome. The Raspberry Pi is used as a server.
Hardware Preparation¶
| 2.8-inch ESP32 HMI Display | Raspberry Pi4 & TF Card | Crowtail-LED | USB-A(or USB-C) to USB-C cable | 4-Pin HY2.0 Cables |
|---|---|---|---|---|
 |  |  |  |  |
| Get one now | Get one now | Get one now | Get one now | Get one now |
Software Usage¶
Install Home Assistant Operating System¶
Go to https://www.home-assistant.io/. Click on Documentation→Installation
Scroll down and choose Raspberry Pi
Here we will write the image with Balena Etcher.
Download the Balena Etcher on https://etcher.balena.io/
Download the image to your computer: https://github.com/home-assistant/operating-system/releases/
Select Flash from file and select the image you just downloaded. Then insert the TF card to your computer and select target. Select Flash! to start writing the image.
Once Balena Etcher has finished writing the image, you will see a confirmation.
Boot up Raspberry Pi¶
Insert the system card into Raspberry Pi and power it up.
Install ESPHome¶
Open the website: http://192.168.2.169:8123
The following interface will appear after setting the account and password:
Click your profile→Enable Advanced Mode;
Click Settings→Select Add-ons→Open ADD-ON STORE→Search for ESPHOME
Start the ESPHOME. If the open fails, you need to restart
Create the device¶
Enter ESPHome and click Add device
The device type selects ESP32, and the board selects Donky(WROOM32)
Generate the bin files¶
Open the website:https://web.esphome.io/?dashboard_wizard
Connect the correct port.
Waiting for the installation to be completed
Edit the code¶
Back to the ESPHOME window and then restart the ESP32 to see the created device in the ONLINE state Note: Set the same WIFI account and password
Before we start editing our code, we do some preparations: Put the picture and tft font file into the / config / esphonme directory. We use a simple and easy to use tool to complete our requirements
Enter the configuration interface and set up the account number and password
Then open computer input \192.168.2.169, then enter the / config / esphome directory
Put the following files into the esphome folder
Then we can start editing the program
After editing the program, you can choose to burn online recording, which becomes very convenient
Successful burning:
Remember this IP address:
Remember this key：
Add integrated devices¶
](https://wiki.elecrow.com/index.php?title=File:Tutorial-HomeAssistant_on_RPI-DIS03024H_1-282593.png)
Enter the remembered IP address：
Enter the remembered key：
After completion, we can see that our device was added successfully：
You can see the entities we created inside：
Now we start adding entities to the main interface Click Overview→Edit Dashboard
Click on the light：
Next, we make a graph of the temperature and humidity：
Done!
