Your hardware ID is your hardware mac address, these addresses are unique and can be found on any network device. This tutorial will teach you how to find them.
A media access control address (MAC address) of a computer is a unique identifier assigned to network interfaces for communications at the data link layer of a network segment. MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and Wi-Fi.
In order to use esptool you will need to install it first
pip install esptool
then you can call read_mac command
esptool.py -p /dev/tty.SLAB_USBtoUART read_mac
If you have setup our alias .bashrc file you can use shortcut:
$ esp read_mac
$ esp read_mac esptool.py v1.2.1 Connecting... MAC: a0:20:a6:12:1a:0a
Updated almost 6 years ago