More remote controlls for gate opener

Projects General Guidance
1

Hi,

I want to build wireless gate opener. It seams easy at first, but at very begining I realized one big problem.
At first, I dont want to open the gate wit IR, becouse it must to be pointed to gate, and becouse of security.

This remote is very good for my purpose (its cheap small and work without pointing to receiver)

but it have only one remote, and its work only with that remote.

I want to have more remotes, for more people.

Can SB advise a remote that can be programed, or any other solution for multiple remote controlls.

Thanks

2

I want to have more remotes, for more people.

Can SB advise a remote that can be programmed, or any other solution for multiple remote controls.

you can use Android phones like here one of my client is doing >> its using wifi [ https://www.youtube.com/watch?v=RPXINGRxZKo](http:// https://www.youtube.com/watch?v=RPXINGRxZKo)

or use encryption of some kind on the arduino level like conforming to a software key or to a unique key IC like ATSHA205.

3

Firstly, I suspect that if you want more transmitters, you simply buy more of the same. The datasheet indicates that it is a fixed code that you set in both transmitter and receiver by solder jumpers, so you just buy the requisite number of transmitters, and set all the codes the same..

What you ask - doing it the hard way - is in this previous thread.

4

I do NOT see pictures of solder jumpers on the board or inside the remote.

If correct code is received, a VT pin goes to 1, right? In this case, just get a bunch of them, connect VT pin of each receiver to an arduino pin. If any of these arduino pins goes to 1, open the door, right?

5

liudr:
I do NOT see pictures of solder jumpers on the board or inside the remote.

Yes, that puzzled me too, but ... the datasheet is - what it is - and it specifies tri-state encoding pins which makes complete sense with the chip having so many pins on the package.

The usual layout of the encoding is to have two rails on either side of a row of small pads - that may be what is poorly visible on the back side of the board (and there is nothing else there). These are not "learning" remote systems, and it is most improbable that they are individually factory programmed, so unless the programming jumpers are as I have surmised, they may well be all programmed to the same code!

I have a mind to buy one, in which case I (we) will know in three weeks!

6

Look at this! It is simply to build, secure, and with GPS on open the gate when you are near the gate! The app for Android is easy to use and to set.

https://docs.google.com/presentation/d/1w-mp8BrxzUAxqMcupgCVQAQDzDfavuWNyruipj2oqDI/edit