Template: ESP32-S3-A7670E FAQ
FAQ
ESP32-S3 can perform PPP dial-up internet using both serial port and USB. In this example, TinyUSB protocol is utilized, and USB enumeration addresses are used for dial-up internet.
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The code in this example is compiled and flashed using esp-idf. If using Arduino IDE, porting of TinyUSB and handling of PPP packets will be necessary.
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Currently, the development board connects to the A/SIM7670X 4G module's serial port using software serial. After enabling GNSS functionality with AT commands, the module outputs satellite signal data through its serial port. By sending AT commands to the serial port, data can be published. Filtering of NMEA signal data is required for listening to the returned values from the platform.
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No.
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Question:For the portable WiFi demo, how to set module APN manually by selecting different carriers?
The default setting is null for the portable WiFi demo, if the module can't recognize the SIM card APN operator automatically, you need to modify the provided source code, refer to README.md in the directory of ESP32-S3-A-SIM7670X-4G-example.
The specific steps are as follows:
1. Refer to the ESP-IDF chapter of the development environment configuration, install the ESP-IDF development environment and vscode programming tools.
2. Use vscode to open the example program and enter menuconfig to set APN manually.
3. Upload the demo to the development board, power off, and reboot the development board.
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All the example demos provided use libraries downloaded and installed from the Arduino IDE library. These library files are constantly being updated and iterated upon, so often a library might be missing and can be directly downloaded and installed in the Arduino IDE.
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