Electric Gate Remotes

[Old Croc]

After about 9 years since instillation of the gate, time and carelessness has decimated the number and condition of our gate remotes.

Knowing replacements can be pricey through the manufacturer, I decided to buy several from a Chinese supplier (yes, I know!) and armed with knowledge gained from that font of all knowledge, YouTube, tried to program them myself. Nothing happened that resembled anything, so I tried to find the code by opening an original remote so I could re-program the copies. No codes were visible inside, only a circuit board.

Then I decided to check the initial instillation paperwork for clues. Not easy as I had to find it in the wife's paperwork depository full of a decades worth of manuals, receipts, etc. relating to hundreds of devices and gadgets of all descriptions.

I did manage to locate a pamphlet about the gate, miraculously written in English. It informed me the remotes uses "code hopping technology and a randomly changing code is transmitted with each operation making it impossible to duplicate." 

Can anyone suggest anything other than the obvious?

[VocalNeal]

9 times out of 10 it will be the switches in the remotes that get dirty. Disassemble the remotes and liberally squirt lighter fluid into the switches and work the switches. Rinse and repeat. Until something happens.

 

Won't help you add to the collection but may rejuvenate some of the old ones. 

 

Yes they may have hopping codes. This is to aid security. You will have to find the manufacturer of the controller and the frequency and get one from them. Unless someone else has already cracked the problem.

[jvs]

Take your remote to a place where they do car keys and such.We had our old gate remote replaced for just 600 baht.

[Andy from Kent]

On 8/18/2020 at 5:16 PM, VocalNeal said:

9 times out of 10 it will be the switches in the remotes that get dirty. Disassemble the remotes and liberally squirt lighter fluid into the switches and work the switches. Rinse and repeat. Until something happens.

 

 

The remote catches on fire and is a pile of melted plastic?     ????

 

I prefer WD 40 that creates more miracles that can ever be listed.

[Susco]

I bought a set of these. Comes with receiver and works well for the past 3 years

 

https://www.ebay.co.uk/itm/401661574951

 

[Crossy]

You have to get exactly the right replacement remote, with our DEA units even the colour of the original matters (different bands).

 

We have one of the add-on boards like @Susco linked to with half a dozen remotes which I installed before I found an AliExpress supplier that did the correct units for our controller. There's also a push-button in the kitchen which is hard wired to the controller for those times that the remotes are all hiding.

 

I'm down to one spare again, I feel another AliExpress order coming on.

 

I expect all the missing remotes are having a great time partying with all my odd socks that have vanished over the years.

[DrTuner]

Those are code hopping remotes, so you don't have the dip switch. There's a learning procedure, usually a button in the receiver and then you press the remote button and it learns, the Chinese units usually accept 3-4 remotes. It's supposed to be a little more secure than fixed codes.

 

https://en.wikipedia.org/wiki/Rolling_code

 

Got a photo of the receiver by any chance?

 

I've seen two frequencies in use, 433MHz and 315MHz. You can see which it is by looking at the crystal oscillator (shiny metal part), it's marked there.

Edited September 2, 2020 by DrTuner