Hi, this is the gate that I have at home and I want to add some kind of sensor to detect if the gate is opened or not. It can be with ESPHome and some ESP32 if needed but preferably something that works out of the box with HA:
#Outside gate sensor
drowsy ivy
Someone suggested a contact sensor but are there waterproof contact sensors that you can buy?
urban warren
https://www.etsy.com/uk/listing/1174718590/weatherproof-enclosure-for-aqara-door works well for Aqara sensors - I've got an Aqara E1 sensor in one of those on the garden gate. It's been there for ~18 months without problems