esp-protocols/components/esp_modem/examples/modem_tcp_client/README.md

# Modem TCP client

(See the README.md file in the upper level 'examples' directory for more information about examples.)

## Overview
This example demonstrates how to act as a MQTT client using modem's TCP commands (provided, the device supports "socket" related commands)

This example could be used in two different configurations:
1) Custom TCP transport: Implements a TCP transport in form of AT commands and uses it as custom transport for mqtt client.
2) Localhost listener: Uses standard transports to connect and forwards socket layer data from the client to the modem using AT commands.

### Supported IDF versions

This example is supported from IDF `v5.0`.
feat(modem): Add mqtt example in AT-only mode Similar to pppos-client, but without PPP mode. This uses standard mqtt client and a loopback service that forwards the TCP traffic from localhost to the modem and vice-versa. (next step is to create a dedicated tcp-transport layer for modem) Console example uses DCE commandable to demontrate how to handle URC 2022-10-05 21:17:50 +02:00			`# Modem TCP client`

			`(See the README.md file in the upper level 'examples' directory for more information about examples.)`

			`## Overview`
			`This example demonstrates how to act as a MQTT client using modem's TCP commands (provided, the device supports "socket" related commands)`

feat(modem): Support custom transport in AT TCP client example 2023-06-19 23:28:17 +02:00			`This example could be used in two different configurations:`
			`1) Custom TCP transport: Implements a TCP transport in form of AT commands and uses it as custom transport for mqtt client.`
			`2) Localhost listener: Uses standard transports to connect and forwards socket layer data from the client to the modem using AT commands.`

feat(modem): Add mqtt example in AT-only mode Similar to pppos-client, but without PPP mode. This uses standard mqtt client and a loopback service that forwards the TCP traffic from localhost to the modem and vice-versa. (next step is to create a dedicated tcp-transport layer for modem) Console example uses DCE commandable to demontrate how to handle URC 2022-10-05 21:17:50 +02:00			`### Supported IDF versions`

feat(modem): Support custom transport in AT TCP client example 2023-06-19 23:28:17 +02:00			This example is supported from IDF `v5.0`.