58 lines
2.6 KiB
Markdown
58 lines
2.6 KiB
Markdown
# Adafruit MQTT Library [](https://github.com/adafruit/Adafruit_MQTT_Library/actions)
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Arduino library for MQTT support, including access to Adafruit IO. Works with
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the Adafruit FONA, Arduino Yun, ESP8266 Arduino platforms, and anything that supports
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Arduino's Client interface (like Ethernet shield).
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See included examples for how to use the library to access an MQTT service to
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publish and subscribe to feeds. Note that this does not support the full MQTT
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spec but is intended to support enough for QoS 0 and 1 publishing.
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Depends on the following other libraries depending on the target platform:
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- [Adafruit SleepyDog](https://github.com/adafruit/Adafruit_SleepyDog), watchdog
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library used by FONA code for reliability.
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- [Adafruit FONA](https://github.com/adafruit/Adafruit_FONA_Library), required for
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the FONA hardware.
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Future todos:
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- Subscription callbacks
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- remove watchdog
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<!-- START COMPATIBILITY TABLE -->
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## Compatibility
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MCU | Tested Works | Doesn't Work | Not Tested | Notes
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------------------ | :----------: | :----------: | :---------: | -----
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Atmega328 @ 16MHz | | | X |
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Atmega328 @ 12MHz | | | X |
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Atmega32u4 @ 16MHz | | | X |
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Atmega32u4 @ 8MHz | | | X |
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ESP8266 | | | X |
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Atmega2560 @ 16MHz | | | X |
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ATSAM3X8E | | | X |
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ATSAM21D | | | X |
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ATSAMD51J20 | | | X |
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ATtiny85 @ 16MHz | | | X |
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ATtiny85 @ 8MHz | | | X |
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Intel Curie @ 32MHz | | | X |
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STM32F2 | | | X |
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* ATmega328 @ 16MHz : Arduino UNO, Adafruit Pro Trinket 5V, Adafruit Metro 328, Adafruit Metro Mini
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* ATmega328 @ 12MHz : Adafruit Pro Trinket 3V
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* ATmega32u4 @ 16MHz : Arduino Leonardo, Arduino Micro, Arduino Yun, Teensy 2.0
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* ATmega32u4 @ 8MHz : Adafruit Flora, Bluefruit Micro
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* ESP8266 : Adafruit Huzzah
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* ATmega2560 @ 16MHz : Arduino Mega
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* ATSAM3X8E : Arduino Due
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* ATSAM21D : Arduino Zero, M0 Pro
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* ATSAMD51J20: Adafruit PyPortal
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* ATtiny85 @ 16MHz : Adafruit Trinket 5V
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* ATtiny85 @ 8MHz : Adafruit Gemma, Arduino Gemma, Adafruit Trinket 3V
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<!-- END COMPATIBILITY TABLE -->
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