esp-idf/examples/protocols
2021-01-11 13:47:33 +00:00
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asio test: remove fake binary size check in example test: 2020-11-24 17:53:33 +08:00
cbor Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
coap_client Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
coap_server Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
esp_http_client esp_http_client example: Update example to demonstrate partial HTTP downloads 2020-12-03 09:39:16 +00:00
esp_local_ctrl Merge branch 'fix/esp_local_ctrl_update_expired_cert' into 'master' 2020-11-11 19:40:02 +08:00
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https_request https_request example: Perform request over HTTP/1.1 to enable keepalive timeout 2021-01-04 15:39:39 +05:30
https_server Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
https_x509_bundle test: remove fake binary size check in example test: 2020-11-24 17:53:33 +08:00
icmp_echo CI: change icmp example test address 2020-12-28 10:07:00 +08:00
mdns test: remove fake binary size check in example test: 2020-11-24 17:53:33 +08:00
modbus Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
mqtt examples/mqtt : Fix ssl mutual auth to use event loop 2021-01-08 07:38:14 +00:00
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openssl_server Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
pppos_client esp-modem: prefix the crash issue both bg96 and sim800l in OVERALL mode 2021-01-11 13:47:33 +00:00
slip/slip_udp bugfix for ipv6_address_value_issue 2020-11-13 08:55:32 +00:00
smtp_client Fixed content type of attachment 2020-11-10 11:57:20 +05:30
sntp Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
sockets ci: Made socket tests more robust 2020-12-29 13:22:54 +00:00
websocket test: remove fake binary size check in example test: 2020-11-24 17:53:33 +08:00
README.md examples: common connect component to use both interfaces at once 2020-05-18 09:26:24 +02:00

Protocols Examples

Implementation of internet communication protocols and services.

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

Establishing Wi-Fi or Ethernet Connection

About the example_connect() Function

Protocols examples use a simple helper function, example_connect(), to establish Wi-Fi and/or Ethernet connection. This function is implemented in examples/common_components/protocol_examples/common/connect.c, and has a very simple behavior: block until connection is established and IP address is obtained, then return. This function is used to reduce the amount of boilerplate and to keep the example code focused on the protocol or library being demonstrated.

The simple example_connect() function does not handle timeouts, does not gracefully handle various error conditions, and is only suited for use in examples. When developing real applications, this helper function needs to be replaced with full Wi-Fi / Ethernet connection handling code. Such code can be found in examples/wifi/getting_started/ and examples/ethernet/basic/ examples.

Configuring the Example

To configure the example to use Wi-Fi, Ethernet or both connections, open the project configuration menu (idf.py menuconfig) and navigate to "Example Connection Configuration" menu. Select either "Wi-Fi" or "Ethernet" or both in the "Connect using" choice.

When connecting using Wi-Fi, enter SSID and password of your Wi-Fi access point into the corresponding fields. If connecting to an open Wi-Fi network, keep the password field empty.

When connecting using Ethernet, set up PHY type and configuration in the provided fields. If using Ethernet for the first time, it is recommended to start with the Ethernet example readme, which contains instructions for connecting and configuring the PHY. Once Ethernet example obtains IP address successfully, proceed to the protocols example and set the same configuration options.

Disabling IPv6

By default, example_connect() function waits until Wi-Fi or Ethernet connection is established, and IPv4 address and IPv6 link-local address are obtained. In network environments where IPv6 link-local address cannot be obtained, disable "Obtain IPv6 link-local address" option found in "Example Connection Configuration" menu.