ESPHOme with PI3B+

Vijay_Naru · June 6, 2021, 6:51am

Are we seeing back ESPHome working on raspberry pi 3B+ update. as the same is freezing the Home Assistant since after 2021.5.3 update. and the same has not been taken care in any further update.

Or is that the ESPHome no longer supported on Home Assistant while running on raspberry pi 3B+ , 2GB module.

Thanks

kan84 · June 7, 2021, 1:36pm

I have ESPHome on 3b+ with 2021.6 and have used with 2021.5.3 without any issues. ESPHome v1.18.0
I dont think there is a variant for 3b+ which has 2gb ram, v4 has different variants with different ram

laca75tn · June 10, 2021, 8:45pm

The problem is that you need at least 500MB for EspHome

Vijay_Naru · November 3, 2021, 11:00am

Ok… Thanks for reply.
I shifted to rpi4 4gb and is working ok now. So it seems its not supporting rpi3 2gb anymore

GobblerGuy · February 22, 2023, 1:32am

Stale topic maybe, but posting here incase others like me have been looking for this answer.

I’ve had some success with ESPHome on my RPI3B+ by increasing the swap file size.
I’ve not configured an ESP32 from scratch yet, but I have been able to successfully adopt a device and do a wireless configuration with the add-on installed in Homeassistant.

How to increase the swap file size on Home Assistant OS

Increasing the swapfile size (especially on a USB SSD attached to my test RPi 3B) is pretty typical when trying to get a Linux box to perform and generally be more stable…

After hanging around on this GitHub issue and watching the progress, I believe there’s a simple and repeatable way to increase the swapfile size.

This solution will survive reboots and upgrades. You also never have to actually open the shell itself.

Please keep in mind that this is strictly for HA OS not Raspberry Pi OS aka Raspbian which has plenty of instructions of how to create and manage swap space.

The simple steps:

Have a functional HA OS box

Enable “Advanced Mode” for the user profile in HA (click on the user on the bottom left navigation bar in HA and scroll down). If you don’t do this, you will not be able to see this SSH add-on. See the warning at the very bottom of add-ons which states to enable this when not seeing a full list.

Install an add-on called “SSH & Web Terminal” — this is the UNOFFICIAL add-on. The official one will not work.

Disable Protection Mode for the add-on

Under the Configuration for the add-on, make sure to press the ellipsis (3 dots) on the right of the word “Options” and select “Edit in YAML”

Change the username and password to something NOT simple because it does validate your entry against the “have I been pwned” database.

Also under the Configuration for the add-on in YAML edit mode, replace the init_commands: [] line at the very bottom with the following and start the add-on:
init_commands:
  - if [ ! -f /backup/_swap.swap ]; then fallocate -l 2G /backup/_swap.swap && mkswap /backup/_swap.swap && chmod 0600 /backup/_swap.swap && swapon /backup/_swap.swap && echo SWAP_NEW_FILE_CREATED_USED ; elif [[ ! $(dmesg|grep _swap.swap) = *swap\ on* ]] ; then swapon /backup/_swap.swap && echo SWAP_USING_OLD_FILE ; else swapoff /backup/_swap.swap && swapon /backup/_swap.swap && echo SWAP_FINAL_ELSE_STATEMENT ; fi

I think I’m not the first to do this, I did read a reference to someone else doing it, but I cannot find it now to link to them to give them credit. Anyway, I hope this helps someone.