ESPTool
This tool is used to install firmware onto ESP-XX modules.
Install
sudo apt-get install python3-serial python3-pip python3-dev rehash pip3 install esptool
If there are complaints from python3, the you may need to do something similar to the following and try the above again
sudo mv /usr/lib/python3.11/EXTERNALLY-MANAGED /usr/lib/python3.11/EXTERNALLY-MANAGED.bak
Add $(HOME)/.local/bin to PATH
esptool.py version esptool.py v4.6.2 4.6.2
Wiring
3V3 UART ESP-XX ESP-01
======== ====== ======
3V3 ---------- VDD 8 21
3V3 -- 10K --- CHIP_EN 4 43
GND ---------- GND 1 65
87
RX -- 390R -- U0TXD 2
TX -- 390R -- U0RXD 7
RTS -- 390R -- EXT_RSTB 6
DTR -- 390R -- GPIO0 5
Use resistors for protection against mis-wiring.
Usage
Older example
esptool.py -p /dev/ttyUSB0 read_mac esptool.py v2.0-beta2 Connecting.... Detecting chip type... ESP8266 Uploading stub... Running stub... Stub running... MAC: 18:fe:34:XX:XX:XX Hard resetting...
Newer example
esptool.py -p /dev/ttyUSB0 read_mac esptool.py v4.6.2 Serial port /dev/ttyUSB0 Connecting.... Detecting chip type... Unsupported detection protocol, switching and trying again... Connecting.... Detecting chip type... ESP8266 Chip is ESP8285N08 Features: WiFi, Embedded Flash Crystal is 26MHz MAC: 60:01:94:b1:1b:ea Uploading stub... Running stub... Stub running... MAC: 60:01:94:b1:1b:ea Hard resetting via RTS pin...