What I read was only related to aarch64. Worth trying non aarch64.
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No offense (i.e. this is my ignorance), but I donāt even know what that means 
Sorry, iāll try and cut back the jargon! It means the library needed by esphome is not installable on a 64 bit arm processor (like a 64 bit pi or a ha blue. If you install esphome on, for example a pc, it may then work (or at least get further).
Ah, well, maybe that IS the core of the issue. The laptop and RPi to which Iāve been connecting are 64 bit, but my desktop also is 64 bit. Are you saying flashing ESP32 boards only works on 32 bit machines? Surely thatās not right. 
Grossly simplified, there are two architectures on commonly used computers. Arm (rasp pi etc_) and x86/x86-64
The problem seems to be with arm machines. Your laptop and desktop are almost certsainly x86-64 so thatās why I suggest installing esphome on one of those.
I tried my laptop which is x86-64 and it wouldnāt initialize (see my OP). I can try my desktop tomorrow.
So you installed esphome on the laptop?
No, through the browser.
You mean through the browser to the pi?
Havenāt used it, I note it is a cut down version.
I did some playing just now. I am running a supervised HA 2022.4.5 on an AMD64 processor (ie what most think of as a normal PC which will run windows and linux) and the addon version on esphome-dev. The latter is currently on 2022.4.0-dev.
If I set up a yaml using the wizard and choose esp-32-s2 in the wizard, this is the relevant bit of the config
esp32:
board: esp32-s2-saola-1
framework:
type: esp-idf
Simple as that. It compiles fine, but I donāt have a device to install it on.
Other notes, the saola-1 is shown here on the platformio site Espressif ESP32-S2-Saola-1 ā PlatformIO latest documentation site and the feather s2 is here Adafruit ESP32-S2 Feather Development Board ā PlatformIO latest documentation
Unless I missed something, the important specs seem identical 240MHz, 4MB RAM, 320 kB flash.
Where you are really getting stuck I think is trying to compile it on an ARM processor.
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@nickrout @Mikefila This seems like helpful information (Support for Adafruit Feather ESP32-S2 TFT board Ā· Issue #742 Ā· platformio/platform-espressif32 Ā· GitHub), but Iām not sure how to format the config to match the suggested platformio settings.
How would you format this to configure this board for use in ESPHome?
[env:feather_esp32s2_tft]
platform = https://github.com/platformio/platform-espressif32.git
board = feather_esp32s2_tft
framework = arduino
Hereās what Iāve got:
esphome:
name: humidor
platformio_options:
board_build.variant: feather_esp32s2_tft
platform: https://github.com/platformio/platform-espressif32.git
esp32:
board: feather_esp32s2_tft
framework:
type: arduino
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I read the other thread that, the a above variation will work when it is added for now I think oyu need the first message and not the second.
platform =
https://github.com/platformio/platform-espressif32.git#feature/arduino-upstream
platform_packages =
framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32#master
board = feather_esp32s2_tft
framework = arduino
so maybe
esphome:
name: humidor
platformio_options:
board_build.variant: feather_esp32s2_tft
platform: https://github.com/platformio/platform-espressif32.git#feature/arduino-upstream
platform_packages: framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32#master
Thank you.
Using this
esphome:
name: humidor
platformio_options:
board_build.variant: feather_esp32s2_tft
platform: https://github.com/platformio/platform-espressif32.git#feature/arduino-upstream
platform_packages: framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32#master
esp32:
board: feather_esp32s2_tft
framework:
type: arduino
I got this error:
I donāt know where the documentation is for platform options is, maybe take away the indent. The other thing would be to dig through the similar issues to see how itās formatted.
@Mikefila OK, this board is now officially supported in PlatformIO ( Adafruit Feather ESP32-S2 TFT ā PlatformIO latest documentation).
Iāve tried many variations of this:
esphome:
name: humidor
board: adafruit_feather_esp32s2_tft
platform: esp32
platformio_options:
platform: espressif32
board: adafruit_feather_esp32s2_tft
board_build.mcu: esp32s2
framework: espidf
esp32:
board: adafruit_feather_esp32s2_tft
variant: esp32s2
framework:
type: esp-idf
version: recommended
But, I keep getting this when I try to install the configuration to the board:
Iāve scoured the forums here, but came up empty. Now that itās a PlatformIO officially supported board, I figured the configuration would be pretty straightforward. Any ideas?
But has esphome caught up with platformio?
Not yet, but the board is in the PlatformIO registry you referenced in one of your previous replies.
I thought that was all that was requiredā¦besides knowing how to configure the settings.
I am not sure if you are still looking in to this or got it to work but as I used this community to help make it work for me just wanted to reply that I have been able to get the Feather ESP32-S2 working with ESPHome and Iāll share what my config was like, I have ESPHome running on a Unraid in a docker on a amd64 architecture so that gets over the issue with some architectures not supporting compiling with esp-idf framework. This example uses the adafruit SHT40 breakout to sense temp/humidity
name: feathersht40
esp32:
board: featheresp32-s2
variant: esp32s2
framework:
type: esp-idf
version: recommended
# Enable logging
logger:
# Enable Home Assistant API
api:
i2c:
sda: 03
scl: 04
scan: true
id: stemma
sensor:
- platform: sht4x
temperature:
name: "Test Feather Temperature"
humidity:
name: "Test Feather Humidity"
address: 0x44
update_interval: 15min
ota:
password: "xxx"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
manual_ip:
static_ip: xxx.xxx.xxx.xxx
gateway: xxx.xxx.xxx.1
subnet: 255.255.255.0
dns1: xxx.xxx.xxx.123
The one thing I have yet to figure out is, I believe the sensor readings are wrong due to needing to set the i2c power pin to low, at least this was the case for Circuitpython to get accurate readings. Not sure yet how to do that correctly in ESPHome
Edit: while the power is still not 100% right, having compared to another feather with the same sensor running on circuitpython the measurements are accurate. I only say the power isnāt right becuase on the feather running CP the led on the sensor is lit up brightly, while on the esphome programmed one it is quite faint which used to be an issue in earlier CP versions if you didnāt set the pin to low.
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