Run on Ubuntu 20 Command: lsusb -d 10c4: -v Output: Bus 001 Device 091: ID 10c4:ea60 Silicon Labs CP210x UART Bridge Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x10c4 Silicon Labs idProduct 0xea60 CP210x UART Bridge bcdDevice 1.00 iManufacturer 1 iProduct 2 iSerial 3 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0020 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 2 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Command: esptool.py chip_id Output: esptool.py v3.2 Found 3 serial ports Serial port /dev/ttyUSB0 Connecting.... Detecting chip type... Unsupported detection protocol, switching and trying again... Connecting..... Detecting chip type... ESP32 Chip is ESP32-D0WDQ6 (revision 1) Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None Crystal is 40MHz MAC: 24:0a:c4:fc:be:f0 Uploading stub... Running stub... Stub running... Warning: ESP32 has no Chip ID. Reading MAC instead. MAC: 24:0a:c4:fc:be:f0 Hard resetting via RTS pin...