example with Arduino possible?

[fntslz]

HI ,
I would like to be able to decode my remote control
https://www.chamberlaindiy.com.au/product/three-button-mini-key-ring-garage-door-remote-security-2/
with Arduino but I can't do it.
Does anyone have an example of RX and TX for use with the Arduino?
Thank you

[aeonSolutions]

Can you explain in detail what you need?

[fntslz]

HI,
I would like to build a receiver with arduino that recognizes my remote control to turn on some lights (a small corridor where I can't install sensors or buttons).
I would also like to be able to transmit the code with arduino to open my garage.
The remote control is the one in the first post.

I have arduino uno and a cheap rx and tx at 433.

Thanks for your help.

[fntslz]

my problem is that I can't write the code with arduino, I can't use the secplus.c and secplus.h libraries.
Thank you

[aeonSolutions]

First, you need to establish successful communication with the remote control. And for that, you need to "hack" your remote control.

[aeonSolutions]

my problem is that I can't write the code with arduino, I can't use the secplus.c and secplus.h libraries. Thank you

I can code that for you at a fair cost. Send me a message on WhatsApp +32 471 632 520 .

While you decide, I leave here a tutorial by Manuel Schütze
"Decode Rolling Code 433Mhz Signals with Arduino"
https://www.manuelschutze.com/?p=333

There is also a discussion about this on the Arduino Forum here
https://forum.arduino.cc/t/feasibility-can-the-arduino-open-rolling-code-garage-doors/403949/12

[fntslz]

Hi everyone,
I studied a bit and finally I was able to use the library.
Here is the arduino code:

#include <secplus.h>

const uint8_t frame1[20] = { 0, 0, 1, 1, 0, 2, 0, 2, 0, 1, 0, 2, 1, 0, 1, 0, 2, 1, 2, 0 };
const uint8_t frame2[20] = { 2, 2, 1, 0, 2, 0, 1, 1, 2, 2, 1, 1, 1, 2, 0, 1, 1, 1, 0, 1 };

const uint8_t frame3[20] = { 1, 1, 0, 1, 2, 1, 1, 2, 0, 1, 0, 2, 0, 2, 0, 1, 1, 1, 0, 1 };
const uint8_t frame4[20] = { 2, 2, 1, 0, 0, 1, 0, 1, 2, 2, 0, 0, 0, 0, 2, 1, 1, 1, 1, 2 };

const uint8_t frame5[20] = { 1, 1, 2, 0, 0, 1, 1, 2, 1, 2, 1, 1, 0, 1, 2, 2, 1, 2, 2, 1 };
const uint8_t frame6[20] = { 2, 2, 0, 2, 2, 2, 0, 2, 0, 1, 1, 0, 0, 0, 2, 1, 0, 0, 0, 0 };

uint32_t roll;
uint32_t fix;

void setup() {
Serial.begin(9600); // initialize serial
Serial.println("Start Decoding");
delay(500);
}

void loop() {
decode_v1(frame1, frame2, &roll, &fix);
Serial.print(roll);
Serial.print(" ");
Serial.println(fix);
decode_v1(frame3, frame4, &roll, &fix);
Serial.print(roll);
Serial.print(" ");
Serial.println(fix);
decode_v1(frame5, frame6, &roll, &fix);
Serial.print(roll);
Serial.print(" ");
Serial.println(fix);
while (true) {}
}

frame1 and frame2 are the data acquired the first time the remote control is pressed.
frame3 and frame4 are the data acquired on the second press of the remote control.
frame5 and frame6 are the data acquired when the remote control is pressed for the third time.
it's definitely not perfect as code but at least it works.

Now I'm working on the HW part to correctly receive the signal and process it and then pass it to the secplus library.

thanks to aeonSolutions

[Crsarmv7l]

First, you need to establish successful communication with the remote control. And for that, you need to "hack" your remote control.

Uh no. You can easily decode Sec plus...with argilo's work. Once decoded you can easily emulate it by reusing the same fixed component and continuing the hops. Or you could just create a new remote and pair it with the opener.