I have a linear actuator on my chicken coop door and I want to install some sort of beam laser so that if the door is closing and a chicken breaks the beam the door will reverse. I just need a link to a beam type switch that I can connect to my esp32 that is known to work with HA. I’ve searched and haven’t found any projects where someone has done this. Thx for any responses and/or suggestions
garage door opener companies charge a high price for their IR switches because they can. the concept is, when the IR beam is broken, the device closes a dry contact switch. You can buy similar devices from Amazon and use them with an ESP8266 or ESP32 microprocessor in ESPHome. another similar device is at Lowes https://www.lowes.com/pd/Genie-Garage-Door-Sensor/3573978