meshtastic/website/docs/getting-started/flashing-esp32.md

id	title	sidebar_label
flashing-esp32	Flashing ESP32 devices firmware	ESP32 devices

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Prerequisites

Check Data Cable

Plug your device into your computer using a USB cable and then do the following: :::important You may need to install a driver from Silicon Labs for the CP210X USB to UART bridge :::

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Open a Terminal and enter the following command:

lsusb

Navigate to Apple Menu  > About This Mac > System Report... > Hardware > USB.

Navigate to Device Manager > Ports (COM & LPT).

You should see something like CP210X USB to UART Bridge Controller. If you don't, you will need to install the appropriate driver from Silicon Labs.

Download Latest Firmware

Prebuilt binaries for the supported radios are available in our releases. Your initial installation has to happen over USB from your Mac, Windows or Linux PC. Once our software is installed, all future software updates happen over bluetooth from your phone.

Current Firmware	List of Firmware Versions

:::note The T-Beam 0.7 board is an earlier version of the T-Beam board, and due to changes in the design in subsequent iterations this board uses a specific firmware file different from the other T-Beam boards.

firmware-tbeam0.7-1.x.x.bin is the correct firmware. firmware-tbeam-1.x.x.bin is incompatible. For all other T-Beam boards firmware-tbeam-1.x.x.bin is the correct selection. :::

Command Line Interface Instructions

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Install Prerequisite Software

Check if you have python3 and pip installed with the following command

python3 --version
 pip3 --version

If python3 is not installed, install with

sudo apt-get update
sudo apt-get install python3.6

If pip is not installed, install with

sudo apt-get install python3-pip

Install esptool

pip3 install --upgrade esptool

Install Prerequisite Software

OS X comes with Python 2.7 installed, but not pip. The following uses Homebrew to install python3 which includes pip3. On MacOS you will use pip3 instead > of pip.

:::note Check if you have Homebrew installed with the following command

brew -v

If it's not installed, follow the instructions on the Homebrew website before continuing. :::

Check if you have python3 and pip installed with the following command

python3 --version
pip3 --version

If python3 is not installed, install with Install Python3

brew install python3

Confirm pip3 was installed alongside python3

pip3 -v

Install esptool

pip3 install --upgrade esptool

• Download and install Python. When installing, make sure to click Add Python X.Y to PATH.
• Download and install Gitbash (or other appropriate shell) and run all subsequent commands from that shell.

:::note Confirm installation of python & pip with the following commands.

py --version

pip --version

:::

Install esptool

pip install --upgrade esptool

Confirm Communication With Chip

Connect the radio to your computer using a data USB cable. Confirm your device is talking to your computer using the following command:

:::important On windows, you must explicitly declare esptools as a .py script. Use esptools.py chip_id. :::

esptool chip_id

# You should see a result similar to this:
mydir$ esptool chip_id
esptool.py v2.6
Found 2 serial ports
Serial port /dev/ttyUSB0
Connecting....
Detecting chip type... ESP32
Chip is ESP32D0WDQ6 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
MAC: 24:6f:28:b5:36:71
Uploading stub...
Running stub...
Stub running...
Warning: ESP32 has no Chip ID. Reading MAC instead.
MAC: 24:6f:28:b5:36:71
Hard resetting via RTS pin...

Navigate to Firmware

cd into the directory where you unzipped the latest release. For example:

cd /Downloads/firmware/

Install/Update Firmware

Install or Update the device that you have by using the following commands according to your operating system:

:::caution Be very careful to install the correct load for your board. In particular the popular 'T-BEAM' radio from TTGO is not called 'TTGO-Lora' (that is a different board). So don't install the 'TTGO-Lora' build on a TBEAM, it won't work correctly. :::

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Install

./device-install.sh -f firmware-BOARD-VERSION.bin

Update

./device-update.sh -f firmware-BOARD-VERSION.bin

Install

./device-install.sh -f firmware-BOARD-VERSION.bin

Update

./device-update.sh -f firmware-BOARD-VERSION.bin

Install

./device-install.bat -f firmware-BOARD-VERSION.bin

Update

./device-update.bat -f firmware-BOARD-VERSION.bin

Graphical User Interface Instructions

Download ESPHome Flasher

:::note ESPHome Flasher also provides instructions to build from source or install via pip on their README. :::

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ESPHome Flasher

Open ESPHome Flasher

There should be no installation required. Connect your device using a data USB cable and refresh the Serial Port. Select the port that your device is connected to.

:::note ESPHome Flasher for linux is a prebuilt binary for Ubuntu. These instructions were only tested on Ubuntu. Mileage may very on other distros. :::

Open ESPHome Flasher

There should be no installation required. Connect your device using a data USB cable and refresh the Serial Port. Select the port that your device is connected to.

:::note If you get an error saying The application "ESPHome-Flasher.app" can't be opened it is likely a permissions issue. See here for instructions. ::: :::note

If you get an error saying "ESPHome-Flasher.app" cannot be opened because the developer cannot be verified, click cancel. Right click on the application and select Open. Select Open on the confirmation alert. :::

ESPHome Flasher

Open ESPHome Flasher

There should be no installation required. Connect your device using a data USB cable and refresh the Serial Port. Select the port that your device is connected to.

Select Firmware

Browse to the previously downloaded firmware and select the correct firmware based on the board type and frequency.

:::caution Be very careful to install the correct load for your board. In particular the popular 'T-BEAM' radio from TTGO is not called 'TTGO-Lora' (that is a different board). So don't install the 'TTGO-Lora' build on a TBEAM, it won't work correctly. :::

Flash Firmware

Select Flash ESP. It may take a minute or two. Once complete, "Done! Flashing is complete!" will be shown.

Over the Air Update Instructions

OTA updates are only currently available on Android.