Solar Powered Fully Automated Chicken Coop with Wifi

[KnowOne]

I used these:

1. A 4-Channel WiFi Wireless-Relay Switch Module - Smart Momentary Inching Controller,DC 7-32V DIY Remote Control Garage Door,Compatible with Alexa Echo Google Home IFTTT

2. Taiss photoelectric Switch M18 2m Sensing 6-36VDC 3 Wire PNP NO（Normally Open） retroreflective Cylinder Amplifier photoelectric Sensor Switch E3F-R2P1

3. Electromagnetic Power Relay, 8-Pin 10 AMP 12V DC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ [Applicable for DIN Rail System]

When the actuator is activated to close, so too is the Relay. If anything crosses the sensor, power reverses in tbe relay raising the door.

Note on sensor: first attempt was with a sensor model without reflector. It was not reliable.
When actuator is powered off, so too does the relay. But powered on even when closed if a bird was to get to it, Door would open. Hasn't been an issue cause once it's dark, Birds aren't moving. Just have to set a timer to turn off power so no other creature could actuvate depending on placement.

Door and sensor attached with my 7 week Littles. The girls are out already. I have 2 doors using this. The one you see and another trap door that slides flat horizontally to access bottom for feed and water.

 

[Mouthpear]

How did you set up the sensor? Where did you get it? I'm looking for a way for the door to stop going down if it gets bumped, but I like the infrared idea. Stumped on how to set it up with a relay switch.

You ever figure it out?

When the actuator is activated to close, so too is the Relay. If anything crosses the sensor, power reverses in tbe relay raising the door.

Curious to know how you are getting it to reverse with just a DPDT relay? Also doses the door try and close after the door reverses or does it stay up. I do mine using a TPDT relay, counter and a pressure switch. The door tries three times and if the door is still obstructed, it will close to the lowest it can. Added a DW2 SONOFF sensor to warn me if the door did not fully close.

I tried a few different sensors like the one you used and through beam but did not like that when door is down it could still be trigger after. The Very simple to make pressure switch took care of that. Or that the door would stay up. The Counter took care of that.