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18 lines
1.1 KiB
Markdown
18 lines
1.1 KiB
Markdown
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# Simple example of esp_modem component
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(See the README.md file in the upper level 'examples' directory for more information about examples.)
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## Overview
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This example demonstrates the use of the [esp-modem component](https://components.espressif.com/component/espressif/esp_modem) to connect to a network and send some AT commands.
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It uses modem CMUX mode so that commands and network could be used at the same time.
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The example uses the following configuration options to demonstrate basic esp-modem capabilities:
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* `EXAMPLE_NEED_SIM_PIN`: To unlock the SIM card with a PIN code if needed
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* `EXAMPLE_PERFORM_OTA`: To start simple OTA at the end of the example to exercise basic CMUX/modem networking. Please note that the option `CONFIG_UART_ISR_IN_IRAM` is not enabled automatically, so that buffer overflows are expected and CMUX/PPP and networking should recover.
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* `EXAMPLE_USE_VFS_TERM`: To demonstrate using an abstract file descriptor to talk to the device (instead of the UART driver directly). This option could be used when implementing a custom VFS driver.
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## About the esp_modem
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Please check the component [README](../../README.md)
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