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History

Sergey Lyubka 0e2f3de154 Change mg_file_read() signature: return mg_str		2024-02-16 12:07:35 +00:00
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main	Change mg_file_read() signature: return mg_str	2024-02-16 12:07:35 +00:00
CMakeLists.txt	Add examples/esp32/uart-bridge	2022-06-19 18:27:37 +01:00
make	Add examples/esp32/uart-bridge	2022-06-19 18:27:37 +01:00
Makefile	Fix for new mg_iobuf API	2022-08-02 14:46:27 -03:00
partitions.csv	Add examples/esp32/uart-bridge	2022-06-19 18:27:37 +01:00
README.md	update	2023-03-08 11:44:34 -03:00
sdkconfig.defaults	Add examples/esp32/uart-bridge	2022-06-19 18:27:37 +01:00

README.md

A UART to network bridge for ESP32

See detailed tutorial at https://mongoose.ws/tutorials/esp32/uart-bridge/

Flash pre-built firmware

You can flash a pre-built firmware to the ESP32 device using the following instructions:

Connect your ESP32 device to the workstation. It should be accessible via a serial port
Download and unzip ESP32 flashing tool from https://mongoose.ws/downloads/esputil.zip
Download a prebuilt firmware https://mongoose.ws/downloads/uart-bridge.hex into the unzipped directory
Start command prompt (or terminal on Mac/Linux). Run cd PATH/TO/esputil to go into the unzipped esputil/ directory. After that, run the following command (change COMPORT to the board's serial port):

OS	Command
Windows	`.\windows\esputil -p COMPORT flash uart-bridge.hex`
Linux	`./linux/esputil -p COMPORT flash uart-bridge.hex`
MacOS	`./macos/esputil -p COMPORT flash uart-bridge.hex`

Next step is to monitor and follow the instructions.

esputil -p COMPORT monitor

Note: if monitor command shows constant restarts, the flash parameters settings can be wrong. Reflash your device with -fp ... flash parameters settings. For example, WROOM-32 based boards use -fp 0x220:

esputil -p COMPORT -fp 0x220 flash uart-bridge.hex

For more on possible options for flash parameters, see https://github.com/cpq/esputil#flash-parameters