Flashing ESP32

Third party integrations
1

I have tried two ways to flash my ESP32 dev board, but I have a com issue in both cases.

  1. Hassio with ESPHOME add-on. I plug the board directly into raspy 3b+ running hassio with add-on, restart add-on, but I cannot get Serial USB option in ESPHOME, so no joy.
  2. ESPHOME-Flasher. I have installed the esphome-flasher for mac. I compile and download the bin, but the esphome-flasher on my iMac cannot detected a connection.
    These problems probably have very different solutions. Any help would be appreciated!
2
3

Thanks so much for replying. The Hassio is running on a raspy 3b+. Locally I am running on an iMac running Catalina.

4

Take note of the second part of that post. It applies no matter how you are running home assistant or the flashing tool.

5

Sorry Tom, when I looked at your post I didn’t click on it, which applied the formatting.

However, my ESP32 isn’t behaving as you describe in either situation. I have two buttons, a boot and an RST button. I’ll describe the esphome-flasher result. I plug in the device on the imac. I have esphome-flahser running. I press both buttons, count to 10 and release the RST button. It doesn’t matter when or how many times I try to refresh the serial port list - it never comes up. It doesn’t matter the sequence of button release.

6

I think that for the mac there may be a missing driver to see/mount the device.

7

If anyone can help me get the ESP32s flashed by either method I would be grateful.

8

I still can get this thing into flash mode. I am trying directly plugged into the Pi3b+ running hassio with the esphome add-on.

9

Did you press the flash button on the device.

When you plug it into the rpi, does dmesg tell you it has been seen by the kernel?

10

I seemed to have solved this on the rpi. I tried every USB cable in the house and one worked. Really bizarre.

11

Hello,
I have bought an ESP32 from China (model ESP32-CH9102X as I tought newer is better).
Unfortunately I can’t flash it from ESP Home installed on HA like I did with other 2 boards.
HA is installed in RPi4.
The error I am getting is this one.
On Aliexpress is mentioned I need to flash it from windows.
This is something new for me…and have no idea how to do it.

A fatal error occurred: Invalid head of packet (0x65): Possible serial noise or corruption.
INFO Upload with baud rate 460800 failed. Trying again with baud rate 115200.
esptool.py v3.2
Serial port /dev/ttyACM1
Connecting…
ERROR Running command failed: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
ERROR Please try running esptool.py --before default_reset --after hard_reset --baud 115200 --port /dev/ttyACM1 --chip esp32 write_flash -z --flash_size detect 0x10000 /data/esphome4-living/.pioenvs/esphome4-living/firmware.bin 0x1000 /data/cache/platformio/packages/framework-arduinoespressif32/tools/sdk/bin/bootloader_dio_40m.bin 0x8000 /data/esphome4-living/.pioenvs/esphome4-living/partitions.bin 0xe000 /data/cache/platformio/packages/framework-arduinoespressif32/tools/partitions/boot_app0.bin locally.
--------------------ESP32-CH9102X

12

Problem solved by flashing the esp32 from a PC.
LE: The PC was with Windows 10, not the RPi4.

13

how else would you flash it?

14

From Rpi4, like I did with the others 2.
But for this one was not working.

15

Of, suddenly the rpi is not a computer? No-one told me :slight_smile: