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HDMI CEC Gpios
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s-hadinger committed Sep 1, 2023
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Expand Up @@ -19,12 +19,15 @@ This features enables a simple Tasmota device plugged to any HDMI port of your h

HDMI CEC needs only 3 GPIOs to be connected to an HDMI port. You can use a simple ESP8266 Wemos D1 Mini plugged with Dupont cables to an HDMI pass-through like [these devices from Alix](https://www.aliexpress.com/item/1005004343592426.html)

The GPIOs from ESP devices are electrically compatible with HDMI specifications, so you can simply connect GPIOs with no additional components:
The GPIOs from ESP devices are electrically compatible with HDMI specifications, so you can simply connect GPIOs with no additional harware components:

- HDMI CEC: GPIO 2 to HDMI Pin 13; GPIO 2 on Wemos D1 Mini is connected to a blue Led which is a visual indicator of CEC traffic
- HDMI I2C SDA: GPIO 4 to HDMI Pin 16
- HDMI I2C SCL: GPIO 5 to HDMI Pin 15
- Ground to HDMI Pin 17

Wemos D1 Mini|Configuration|HDMI
:---|:---|:---
GPIO 2|HDMI CEC|HDMI Pin 13<BR>GPIO 2 on Wemos D1 Mini is connected to a blue Led which is a visual indicator of CEC traffic
GPIO 4|I2C SDA|HDMI Pin 16
GPIO 5|I2C SCL|HDMI Pin 15
Ground||HDMI Pin 17

Below is the template:
`Template {"NAME":"HDMI CEC","GPIO":[1,1,9824,1,640,608,1,1,1,1,1,1,1,1],"FLAG":0,"BASE":18}`
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