Home Assistant OS Network Configuration and Temperature Humidity Settings

NO.1

HA Network Scheme

Hardware Selection

The PVE relies on wired Ethernet

Considering the network relay method, the router needs to support both wireless and wired relaying

This requires at least two network ports, one WLAN port and one LAN port, with LAN assigned to PVE and WLAN receiving the wired network

This article adopts a wireless bridge scheme

It receives other wireless Wi-Fi through the Redmi router, then generates its own Wi-Fi and wired LAN network

This allows the Raspberry Pi 5 and router to move freely without being restricted by wired networks

During use, the access location of PVE needs to be modified (to stay on the same subnet as the router)

Reference Article

<<HomeLab [PVE] (X86_64): Modify PVE Network Access Address>>

NO.2

Setting Up ESP32 and DHT11 Temperature and Humidity

Reference Article

<<Home Assistant Setting Up ESPHome with ESP32 + DHT11 Temperature and Humidity Sensor>>

During the actual operation, some issues were encountered

The HA OS system space is full, only 0% available

This caused an insufficient space error when flashing ESPHome onto the ESP32

esphome Tool Manager: Warning! Package Mirror: [Errno 28] No space left on device
WARNING Warning! Package Mirror: [Errno 28] No space left on device

The solution is to directly add space to the PVE HA disk

Reference Article

<<HomeLab [PVE] (X86_64): Expanding Disk Space When Only Half of the PVE Ubuntu Server Disk is Installed>>

Unlike Ubuntu in PVE, HAOS only needs to add space; after shutting down and restarting, HAOS will automatically recognize the newly added disk space

NO.3

Flashing ESPHome Firmware

This article refers to previous articles that could not connect to the ESP32’s Wi-Fi

In the configuration, write the current router’s 2.4G frequency band Wi-Fi and password directly (manual entry)

Using the fourth method, generate the firmware (install)

Then use the ESPHome webpage to input the firmware

This method retains the bin firmware file

The firmware flashed using this method for ESP32 + DHT11 can be accessed normally, without Wi-Fi failure or other issues

NO.4

Configuring Home Page Card Display

Configuring HA home page card display

NO.5

Tips

The most commonly used currently are temperature and humidity and ESP32CAM camera

The CAM scenario can be used for timed photography of water meters, electric meters, especially natural gas meters and other common data instruments

For recording and summarizing, combined with OCR, it can provide warnings for electricity, water, and natural gas

The following image shows the ESP32 + DHT11 temperature and humidity sensor

In the previous issue, the Orange Pi 3B attempted HA

2GB of memory is not enough for PVE, at least 8GB is needed
The Orange Pi 3B has been removed from Taobao, chasing the new and not the old, 3B is no longer considered

END.

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