I used an esp8266 nodemcu with a 5v relay connected normally open directly to the terminals on the back of the garage door opener unit.
Esp 01 garage door opener.
Warning it will oscillate if you fallow the other tutorials i tried the transistor and also using the opto isolator connected to ground but both pull the esp too close to ground it shorts out and will keep resetting itself.
I didn t want a wifi enabled opener that requires a connection to the manufacture server or anything that could allow the door to be opened remotely far away from the house.
This project uses the esp 01 to control the garage door opener as well as sense when the door is open or closed.
Nodemcu esp 12e l298 motor driver or relay module.
The esp 01 talks via wifi to an openhab controller that monitors door status as well as sends door open close commands.
Main characteristics asymmetric encryption algorithm libsodium unlimited users per device.
New pull request find file.
Connections for the circuit are given.
L298d motor driver module has an inbuilt 5v supply but if you are using l293d ic then you have to make a 5v power supply circuit using 7805 ic.
This project uses the esp 01 to control the garage door opener as well as sense when the door is open or closed.
The esp 01 talks via wifi to an openhab controller that monitors door status as well as sends door open close commands.
Clone or download clone with https.
If their garage door controller didn t have any warnings the garage door would just come down and damage the car.
Let s explore using the esp 01 version of this soc to make our garage door smart.
Complete circuit diagram for smart garage door opener is given below.
Esp8266 garage door opener.
Our garage door opener only came with two remotes and while we can buy more remotes i though it would be better to have a wifi based remote that can be used from a smartphone.
The updates are transparent through users normal utilization.
The reason i wanted this was to be able to close my garage door remotely in case i left it open accidentally.
For some reason what actually happens is that the mosfet drops to a voltage below the point where the esp is operational but doesn t turn completely off it keeps leaking power at around 1 5v which causes the battery to drain and opening the garage door thus supplying full power doesn t bring the esp out of this strange state.
Over the air ota firmware updates.
If the beep goes off first the person who is unloading the car may have time to run over and hit the stop button on the wall and the manual button will always override the automated system on a ul listed device but not necessarily on other devices.