Cheap eBay FM Transmitter and MRDS1322 RDS Encoder?

[Spankyty]

Hello again! I have this really neat cheap $7 FM transmitter I got from eBay and it works amazing! I'd now like to add RDS to it if it is even possible. I've seen Wayne has done it with his transmitter. I am hoping I can too with this. I am using FPP and Vixen 3. I see that TinyRDS is an option in Vixen 3.


Transmitter I have:
https://www.ebay.com/itm/DSP-PLL-87-...72.m2749.l2649

The encoder I want to use:
https://pira.cz/rds/show.asp?art=micrords_encoder

[Ruppro]

The transmitter itself has to be able to support RDS. And those $7 transmitters do not have that capability. You would need to buy a new transmitter w/ RDS

[Spankyty]

The transmitter itself has to be able to support RDS. And those $7 transmitters do not have that capability. You would need to buy a new transmitter w/ RDS

What about this:
https://pira.cz/rds/show.asp?art=minirds_encoder

"It's not important if you use this RDS encoder with one transistor FM bug or 1 kW transmitter."

I am confused about what this is then. If a radio has RDS what's an encoder do?

[Spankyty]

Also, what are the TX, RX, and GND pins for on the eBay transmitter? What can I connect to that?

1d734fbe-52ae-40fc-ae1c-fc299338f9a5.jpg

[dirknerkle]

Also, what are the TX, RX, and GND pins for on the eBay transmitter? What can I connect to that?

1d734fbe-52ae-40fc-ae1c-fc299338f9a5.jpg

Why not contact the eBay seller and ask? Or look for other similar products and see if those sellers have documentation.

[dkulp]

The SI4713 things work "OK" for both transmitter and RDS:

https://www.amazon.com/Adafruit-Ster.../dp/B00SK8ME4Y

Little more expensive than the $7 transmitter, but it does support RDS and there are actually two different FPP plugins that work with it.

[Stormyblade]

Also, what are the TX, RX, and GND pins for on the eBay transmitter? What can I connect to that?

1d734fbe-52ae-40fc-ae1c-fc299338f9a5.jpg

I have the same FM transmitter. You connect a wire to the Ant spot only, and the wire length is based on the frequency that you will be transmitting. 75cm is a default length.

[Spankyty]

Thanks, guys for the help! :D

[MikeKrebs]

The tx and rx pins are for the serial interface. The description mentions
7: supports serial command control
and that would be the way to send the serial commands

[Spankyty]

The tx and rx pins are for the serial interface. The description mentions
7: supports serial command control
and that would be the way to send the serial commands

So I can send it RDS with TinyRDS???