| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-C5 | ESP32-S2 | ESP32-S3 | ESP32-H2 |
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This example focuses on the networking part, enabling packet forwarding between network interfaces. It can be connected to PC or MCU through multiple network interfaces (ETH/SPI/SDIO), and ESP32 series chips use NAT to forward data packets in and out of the PPP network interface.
Required
- A 4G module
- An esp32 series development board
- A Micro-USB cable for power supply and programming
Optional
- One Ethernet cable
- A USB cable for communication
- Some DuPont cables to connect to the SPI or SDIO interface of the MCU
Follow detailed instructions provided specifically for this example.
You can select the interface (UART or USB) connected to the Modem in Component config → Bridge Configuration → Modem Configuration of menuconfig.
You can select the interface (ETH/SPI/SDIO) connected to the PC/MCU in Component config → Bridge Configuration → The interface used to provide network data forwarding for other devices of menuconfig.
Run idf.py flash monitor to build, flash and monitor the project.
Once a complete flash process has been performed, you can use idf.py app-flash monitor to reduce the flash time.
(To exit the serial monitor, type Ctrl-]. Please reset the development board f you cannot exit the monitor.)
For more information, see User_Guide.md.