Homebuilt ROVs Forum

Posted: **Mar 11th, 2021, 12:00 pm**

fryslan76 wrote:

The tenda I used is this one Tenda CPL P200 kit.

I can post the wiring if you need it.

Posted: **Mar 12th, 2021, 4:55 am**

Would be nice if you add it, for future reference by other people.

Posted: **Mar 13th, 2021, 4:04 am**

fryslan76 wrote:Would be nice if you add it, for future reference by other people.

OK...

So... The Tenda P200 module is a powerline adapter for transmitting ethernet signal through the home electrical grid. By opening this module you will be able to separate the AC side from the modulator module by just separating the two (they are connected with some headers and thats all. Its really simple to separate the two modules.

The modules that we are interested are two modules like this one:

: sidetenda.png (459.28 KiB) Viewed 63447 times

We can ignore the LED lights if we want... I would suggest to connect some LEDs lights to the LED pins so to know whta its going on with the tenda. (LEDs light must have a current limiting resistor).

: WiringTenda.png (445.82 KiB) Viewed 63447 times

The wiring of the tenda Is shown in the image below:

: trasferimento.png (90.05 KiB) Viewed 63447 times

I also analized the output so to understand how it modulates the signal. This system should allow a 200meter range communication with a twisted pair wire.

This is the final result with a 3D printed case and a USB 5V converter to power the module.

: 53107B10-5098-447A-B414-72AD49950C5D.jpeg (283.33 KiB) Viewed 63447 times

: A5773C14-8A78-4C74-BA69-06F6ABD60A39.jpeg (168.84 KiB) Viewed 63447 times

If you have any comments just write here

Posted: **Jul 20th, 2025, 5:12 am**

Update! Idea on how to transmit video with easy and cheap plug-and-play solutions...

From AliExpress I found Car parking camera, wireless car parking camera transmitter and AV to USB C converter. This can be used in unison with a long AV cable and a Floater to transit video to the controller via wireless solution.

Here are some pictures of the solution:

: IMG_9614.jpg (923.56 KiB) Viewed 48474 times

: IMG_9616.jpg (836.62 KiB) Viewed 48474 times

: IMG_9615.jpg (655.24 KiB) Viewed 48474 times

AliExpress: US $10.04 | 2.4G Wireless Car Rear View Camera Color Video Transmitter Receiver Kit 12V For Multimedia Monitor Rearview Camera
https://a.aliexpress.com/_msD74F9

AliExpress: US $3.32 | Car Reverse Camera HD Night Vision Wide Angle Rear View Parking Camera Waterproof CCD LED Auto Backup Monitor HD Image
https://a.aliexpress.com/_mO1cVpz

AliExpress: US $8.79 | RCA AV to USB C Converter Video Capture Card Adapter 1 Channel AV NTSC PAL Video S Video/Composite to USB Converter
https://a.aliexpress.com/_m0D5W1h

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