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homieiot / convention

🏡 The Homie Convention: a lightweight MQTT convention for the IoT
https://homieiot.github.io/
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GPIO0 in use #188

Closed nelfata closed 4 years ago

nelfata commented 4 years ago

I need to use GPIO0 on the ESP8266 to control an LED, but for some reason this is not possible. It seems that it is used internally. I tried calling Homie.disableLedFeedback() but that made the GPIOs to toggle periodically and performing OTA upgrades no longer worked. Please advise. Thanks.

lorenwest commented 4 years ago

Here's a good article on using GPIO0, 2, and 15 as outputs.

Bottom line: Either stay away from those GPIOs as outputs or understand the issues well.

davidgraeff commented 4 years ago

Hm. Wrong repo. This is for the Homie spec not the firmware.