Socket

TCP and UDP socket examples and helpers for use with CircuitPython. Easy to modify: Add exception handling, context managers; make TCP examples re-use connections or make new connections. ESP32-S2 and CPython TCP examples based on https://github.com/adafruit/circuitpython/tree/main/tests/circuitpython-manual/socketpool/

More examples:

Adafruit_CircuitPython_ESP32SPI TCP Client example: HTTP
https://github.com/adafruit/Adafruit_CircuitPython_ESP32SPI/blob/master/examples/esp32spi_tcp_client.py

Adafruit_CircuitPython_ESP32SPI UDP Client example: NTP
https://github.com/adafruit/Adafruit_CircuitPython_ESP32SPI/blob/master/examples/esp32spi_udp_client.py

Adafruit CircuitPython Native (espressif and raspberrypi ports) examples:
https://github.com/adafruit/circuitpython/tree/main/tests/circuitpython-manual/socketpool/

Adafruit CircuitPython Native (espressif and raspberrypi ports) HTTP Server: https://github.com/adafruit/Adafruit_CircuitPython_HTTPServer

There is a class and example for a WIZnet5k TCP [HTTP / WSGI] Server: https://github.com/adafruit/Adafruit_CircuitPython_Wiznet5k/blob/main/examples/wiznet5k_wsgiserver_test.py

Compatibility

Socket Feature Availability

                               CircuitPython  CircuitPython  CircuitPython  CircuitPython
                CPython        ESP32SPI       ESP32-S2       Pico W         WIZnet5K

TCP Server      Yes            *              Yes            Yes            Yes

TCP Client      Yes            Yes            Yes            Yes            Yes

UDP Server      Yes            **             Yes            Yes

UDP Client      Yes            Yes            Yes            Yes            Yes

TCP Compatibility

                                CircuitPython    CircuitPython    CircuitPython
                 CPython        ESP32SPI         ESP32-S2         Pico W
                 TCP Server     TCP Server       TCP Server       TCP Server

CPython
TCP Client       6.2.0          *                6.2.0            8.0.0-beta.1

CircuitPython
ESP32SPI
TCP Client       6.2.0          *                6.2.0            

CircuitPython
ESP32-S2
TCP Client       6.2.0          *                6.2.0            

CircuitPython
Pico W
TCP Client                      *                                 8.0.0-beta.1

UDP Compatibility

                                CircuitPython    CircuitPython    CircuitPython
                 CPython        ESP32SPI         ESP32-S2         Pico W
                 UDP Server     UDP Server       UDP Server       UDP Server

CPython
UDP Client       6.2.0          **               6.2.0            

CircuitPython
ESP32SPI
UDP Client       6.2.0          **               6.2.0            

CircuitPython
ESP32-S2
UDP Client       6.2.0          **               6.2.0            

CircuitPython
Pico W
UDP Client                      **

* There is a class and example for an ESP32SPI TCP (HTTP) Server:
https://github.com/adafruit/Adafruit_CircuitPython_ESP32SPI/tree/master/examples/server
However, it is implemented at the interface level (esp), not the socket level. ESP32SPI is structured around the NINA firmware, which is structured around Arduino WiFi, which doesn't directly implement socket bind, listen, or accept.

** There is a rudimentary example for an ESP32SPI UDP Server: https://gist.github.com/anecdata/b3d43870942684570d90e3fc9833292b However, it is implemented at the interface level (esp), not the socket level. ESP32SPI is structured around the NINA firmware, which is structured around Arduino WiFi, which doesn't directly implement socket bind, listen, or accept. There is an updated ESP32SPI UDP Server: https://gist.github.com/anecdata/61dfb2e5f4649a1a42885f8e9314800a

License

anecdata/Socket

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