How can i make a garage door opener run in one direction only [closed]


In my previous setup to OH had a plugin that handled what I think you are asking for. I was determined to create it in OH. I wrote a pair of rules to handle what I think you are talking about.

My setup has a number item that is 0 or 1 but on the sitemap shows as closed or open via mappings. The item will highlight the current state of closed or open. You can still push either direction. The rule will actually verify against the door sensor that the current state is correct. If not it will send a command to push the door opener button (standard one button chamberlain opener that I have a relay connected via my DSC PGM outputs).

Once the rule pushes a garage button, it will wait for a few seconds and then check the status and update the state of the Number on the sitemap. That way you have real feedback of success/failure.

I have a second rule that monitors the door sensor separately. This will update the number item if the garage door is opened manually via...

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Introducing Garage Door Sensors

Garage door sensors operate to open or shut the doors of a garage or may be any place of such importance. There has been strictness in the rules so as to make it mandatory for the companies manufacturing garage it to install safety devices along with it in order to prevent accidents. But the main question which will also help us in troubleshooting its operation is that how exactly does garage door sensors work?

How garage door sensors work

Garage door sensors generally work on the basis of photo eyes. This is basically a technique which is based on the strategy that anything coming in the line of the closing door will be treated as an obstructing agent and will hence lead to the operating of the sensors which prevents it from closing that may generally be due to the breaking of the circuit contact due to any obstacle and hence the sensor stops to send the message to close the door.

Garage door sensors may work due to...

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1. My garage door will not go down using my transmitters. I can only get the door down by holding down on the wall button.

When the infra-red sensors are malfunctioning, usually one of the sensor lights will be blinking. The problem is either due to a blocked path between the sensors, dirty eyes, loose wires at the sensors or at the motor head, or just bad sensors. The transmitters (remotes) will not work to close the garage door. You will find that the door will only move an inch or so in the close direction and reverse. When this happens your garage door will only close by holding down on the wall button, or wall console, until the door fully closes. This method is the only way to override the safety and close the door.

To try and correct the problem, make sure the eyes on the sensors are clean, the wire connections are securely fastened at the sensors and motor head, and the eyes are directed at each other. Also, try unplugging the garage...

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Your garage door won’t open when you use your remote control from your car in the driveway? If your garage door opener is working properly in every other way but NOT receiving the signal from your remote when the garage door is closed, there are a few things you can do. (If your garage door button on the wall of your garage opens your garage door, then we know the door is working and must consider this as a communication issue.)

We are going to assume there is a communication problem from using your remote from outside with the garage door shut. There may be something interfering with the signal or possibly something else.

First make sure the batteries are in working order in your remote control. If so, go inside your garage with the remote you had in your car, and with the garage closed, test the remote to see if the door opens. If not then your remote is most likely broken and you need to replace it. We will assume this since the button on the garage...

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Door Details

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(Illustration by Merce Iglesias)

The torsion spring, not the operator (or motor), does the heavy lifting. Aesthetics aside, the big changes in today's 300-pound steel doors are in insulation. Tighter perimeter seals and sandwiched polyurethane panels get some doors' U-factors, which measure resistance to heat flow and air infiltration, down as low as 0.2. A door under 0.3 qualifies for a 2010 tax credit of up to $1500.

Anatomy of an Operator

(Photograph by J Muckle)


1. Motor & Gears: The motor is typically about a 1/2-hp, 6-amp machine hooked to a 120-volt outlet—that's all it takes to overcome the inertia of a stopped door. The machine also slows a door in transit, preventing it from crashing to the garage floor.

2. Drive Guide: This track (aka the T-rail) guides and shields the chain, screw or belt as it moves the door open and closed. It connects the operator...

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Electronic garage doors have made the manual efforts of opening and closing the garage doors, redundant to a great extent. You can control the operation of the garage door by a push of a button or by simply pressing the key on the remote. But as many electronic components are involved in the entire system, it is bound to give certain problems, sometimes. However, these are minor problems, that you yourself can solve. But for that you should first understand what are the different components that make up the system and how the system actually works.

The garage door system consists of optic sensors, transmitters, wiring, remote control, tracks, rollers, motor, switch, chains, door, etc. The mechanism of a garage door is quite simple. The motor rotates in the clockwise directions to open the door. The limit switches then make the motor rotate in a counter-clockwise direction, which leads to the closing of the door. These limit switches are programmed to accurately tune the...

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We’ve talked in depth about garage doors and their vulnerabilities on ITS, but today we wanted to highlight a discovery made by Samy Kamkar using a children’s toy and some common materials. The device he’s created, dubbed the OpenSesame, can open a garage door using a brute force attack in less than 10 seconds.

How Garage Door Openers Work

Before we get into the details of the vulnerability, let’s explain a bit about how automatic garage door openers developed. The first electric garage door opener was introduced in 1926, but didn’t gain in popularity until after World War II. These openers usually involved a wired switch being run from the door motor to a keypad or button that could be pressed from inside the vehicle. As technology improved, the wireless remote was created and used radio signals to transmit a code from the remote control to the opener itself. Once the code was transmitted, the opener would receive it and run the motor to draw the door up or...

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Q: Can I replace only one sensor on my garage door opener?

A: (safety sensors: sensors located at the bottom corners of door that keep door from closing when door opening is obstructed.) Safety sensors have 2 sensors pointed at each other. One is a transmitting sensor the other is a receiving sensor. Usually each sensor has different color LED lights one green and one red. These LED lights indicate if sensor is working properly.

When one sensor has broken or stopped working and the other is still ok, you can just replace the sensor that has stopped working. Now sensors are sold to garage door companies in pairs. They don’t sell them individually. So replacing both sensors is the best way to go.

When sensors LED lights blink they are letting you know something is wrong. I have found on Genie brand openers that don’t assume the sensor that is blinking is the one that has malfunction. I have replaced just the one sensor that was blinking and found the bad sensor...

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A garage door opener is one of the handiest gadgets you can install in your home. And you can install it yourself following these general instructions and the specific instructions that come with the unit.

The typical garage door opener consists of a reversible motor that drives a carriage along a rail above the door. Attached to the carriage is a drawbar to move the door between its opened and closed positions, with travel-limiting devices to stop the door's movement precisely at the fully opened and fully closed positions. A relay or reversing switch reverses the direction of drive from opening to closing and back again. Most modern garage door openers include a radio receiver that allows you to open the door by sending a signal from an electronic module in your car.

Here's how to install a garage door opener:

Step 1: The mechanism should be installed at the center of the door. To determine the location, use a tape measure to figure the width of the garage...

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Here's the thing about GPIO ports on a pi, or an arduino, or just about anything that has a GPIO port. They [typically always] start up as INPUT, not OUTPUT, which means they are waiting for you to ask if they are "high" or "low" (3 volts or 0 volts, or 5 volts or 0 volts usually, this depends on what system. High and low can mean a lot of different things here, but low is almost always zero volts referenced to the other voltage.)

Let's say that for the purposes of explanation our system uses +3 to mean high and 0 volts to mean low. Since the pins are just sitting there waiting for you to ask if it's high or low, they don't have 0 volts on them and they don't have +3 volts on them either, they are what we call "floating". Now sometimes, it will be closer to high and sometimes it will be closer to low, but there are a lot of variables that can affect this (like static in the air even!) so if your relay knows to turn itself "on" when it sees 0 volts (low) and "off" when it...

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Ryobi has come out with a new garage door opener, model GD200, that has so many features I almost don’t even know where to begin.

It’s powerful, with a 2HPS* motor. But it’s also ultra-quiet, with Ryobi saying it’s 20% less noisy than “leading garage door openers.” It features a steel-reinforced belt drive system, for longer life. That should help cut down on the noise as well, compared to chain-driven systems.

It also has a bright LED light with motion sensor control and adjustable illumination duration control. Plus it’s WiFi-connectable out of the box, allowing you to control it via your iOS or Android smartphone. It is also HomeLink-compatible.

And it’s said to be easy to install.


Chamberlain’s Whisper Quiet 3/4 HPS* garage door opener (

$238 via Amazon

) seems to be a good model to compare this Ryobi to, and they also offer a smartphone-connected model with 1-1/2 HPS* motor (

$228 via Amazon


Plus you can pop in...

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One of my weekend projects a few months ago was making it so I could open the garage door on my house with my iPhone. Here’s how I got it working.

First, a quick demo of the final product. Once I got everything working, using this thing is pretty simply. I launch X10 Commander on my iPhone:

Then I tap the “ON” button with my finger and after a small lag (1 second?), my garage door…

…springs open! (or closes).

“Who cares?” you ask… well, having my iPhone to control my garage means:

I can be in a car that doesn’t have my garage code programmed into it and open/close my garage (e.g. a friend’s car) I can go out for a walk or a run, close the garage door behind me and open it again when I get back home Generally speaking, it’s one less box to worry about when I go out I can open and close my garage door from my iPhone… just for the sheer pleasure of the act And of course, I have a cool thing to show friends when they come over.


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Three Parts:Preparing for Your AdjustmentAdjusting Side-Mounted SpringsAdjusting Torsion SpringsCommunity Q&A

Garage door springs offset the weight of the door and allow it to open and close with ease. A problem with the spring tension could cause the door to open or close unevenly, improperly, or at the wrong speed, and adjusting the springs will likely solve the problem. Garage doors come in different styles that use two different types of springs, and whether you’ve got an easy fix on your hands or a more difficult and dangerous task will depend on what style of door you have. You may be better off seeking the services of a professional if your door has torsion springs, especially if you don’t have the proper tools, have no experience, or lack a mechanical...

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