How to detect devices thru ESP ref. numbers ?

[Carlowatt]

Hi all, thru the app FING, I am trying to have a clear picture of my home network: most of the devices are quite clear, but I have detected a few which I cannot identify. I have typed all their references in a browser, including their Mac addresses, but no success.
I give you all the details exactly as I can see them from Fing ( not much though ), hope you can give me suggestions on how to identify the devices they belong to:
1. ESPRESSIF - Espressif
2. ESP-FF9096 - Espressif
3. ESP-07F797 - Espressif
4. C4-104 - Dallas Semiconductor
5. ESP-4DBD31 - Espressif ESP8266
Tks a lot.

[Sprite]

That is almost impossible to say - there isn't a database with a mapping between MACs and devices; manufacturers just grab devices with whatever mac happens to be programmed into them, and when they also don't change the hostname, there is no way to tell. I'd suggest just turning off any device you may have, and then see if one of those MACs drops off the network.

[lbernstone]

You can get the MAC address and chip ID (for esp8266) using esptool. The number appended to ESP- is typically the last 3 octets of the MAC. Note that you can also see this during programming if you enable output during upload. I'll agree with Sprite and say that the easiest way to identify them is unplug and see them disappear from the AP's arp table.

Code: Select all

~/esp32/esptool$ ./esptool.py chip_id
esptool.py v4.6
Found 33 serial ports
Serial port /dev/ttyUSB0
Connecting....
Detecting chip type... ESP32-C3
Chip is ESP32-C3 (revision v0.4)
Features: WiFi, BLE
Crystal is 40MHz
MAC: 34:85:18:28:dd:a0
Uploading stub...
Running stub...
Stub running...
Warning: ESP32-C3 has no Chip ID. Reading MAC instead.
MAC: 34:85:18:28:dd:a0
Hard resetting via RTS pin...