BREmote - DIY Remote

[StefanG]

Hi Ludwig,

I like to add a temperature measurement to the RX.
So I connected an NTC to A5 (SCL) (I dont use the I2C right now).
Now I struggle to send the temperature value back to the TX.
I used the payload_arr[4] but nothing is shown on the TX (only 0c).
Can You please tell me the trick

Thanks

[ludwig_bre]

Check the updatePayload function at the end of Radio.ino in Rx source. This is where you can add your analog reading.
Or just set fetTemp somewhere in the code asynchronous
Or delete the line there and set payloadArr[4] directly

[seagull_nz]

1.2 kΩ and for reference the other sig/gnd was about 20kΩ

[StefanG]

Thanks. It works now. I realized that fetTemp is in 0.1 °C.

What do You think: Is this feature worth to distribute?
I can send You the code to publish it on the github.

Big thanks for the work on the Bremote and for this fantastic support

[ludwig_bre]

@seagull_nz

1.2 kΩ and for reference

The emi/cat should be in the MOhm range…
Probably the optocoupler is broken, luckily there is a 2kd part on the PCB only used for the BMS detection.
If you don’t use this feature you can swap the part

Make sure to pay attention to pin1 location

[ludwig_bre]

@StefanG

What do You think: Is this feature worth to distribute?
I can send You the code to publish it on the github.

Yes please, you can find my email address on my homepage lbre.de

[seagull_nz]

It’s working again! Thanks so much, I will sleep well tonight knowing I can still use my tow boogie!

[ludwig_bre]

Happy to hear! Just to be clear, you swapped the optocoupler and this was indeed the fault?

[seagull_nz]

Yes I did use the BMS octocoupler to replace the other. I also swapped the ESC connectors with bevelled ones to prevent it happening again.

[brewhouse]

Hi Ludwig,

First off, thanks for this great project and the rest of your contributions to the forum. I’m still new here but have already learnt lots.

I had bought the BREmote kit last summer, but only got around to putting it together now. When filling it with foam today, I closely followed your instruction video but something has gone wrong, the foam only went halfway up the handle.

Attaching a photo here for the sake of sharing with the community, but I’m sending you an e-mail as well with more details and photos.

Thanks.

[seagull_nz]

Same thing happened to me, I just put more in.

[brewhouse]

Thanks for sharing your experience.

How did you go about filling it from the other end? Through one of those tiny holes near the USB connector, where the expanded foam was supposed to come out of? Or do I better take off the bottom cap (it’s glued on now), mix PU, pour inside, then quickly put cap back on?

Also, have you had any issues with water ingress since, like @Jatem has mentioned?

[brewhouse]

Hi there, am I to understand that – due to filling the foam in 2 stages – there will be a risk of (salt) water ingress and subsequent failure in future?

[seagull_nz]

No issues with water, yes I filled in the small holes, but then I also used 5 minute epoxy glue to cover up the holes, and as I had spare I also used it over some seams.

[seagull_nz]

Had a wicked fun session in the waves last night with my tow boogie, but had issues with connectivity after some long waves and not being able to see the boogie due to peak/trough of the swell. I have LR Bremote and I’d like to extent my receiver antenna up one of the flagpoles I have installed. (Once again, I’m copying @Jesserosco ) I have an IPX to SMA, does it matter which SMA antenna I buy? For example what MHz values should I be aiming for?

[ludwig_bre]

For the V1 you need a 2.4GHz (WiFi) antenna

[seagull_nz]

Thanks, now you raise a good question. As I will use the V2 when it’s ready, what will be required for the V2 for the same application?

[ludwig_bre]

A 868MHz (EU) or 902MHz (US) antenna. These are available on many onlineshops as well, but the quality is not very good in my experience. They are mostly out of tune and therefore decrease the signal quality a lot.

We will therefore supply an antenna, designed by me, specifically for waterproof eFoil and boogie applications together with the V2 kit.

[StefanG]

Hi Ludwig,
can You please share a link for an external receiver antenna for the V1 system.
When my receiver box is under water I have a signal loss (E4). I like to put the receiver antenna in front of the board - so I need about 1.5m cable (from the box to the nose of the board.)

[ludwig_bre]

Hey Stefan,
Any 2.4GHz antenna can be used for V1
I use this one: Greluma 2 x 8dBi 2,4GHz 5GHz 5,8GHz Dual Band WiFi RP-SMA Antenne+2 x 21CM U.FL/IPEX zu RP SMA Buchse Pigtail Kabel für Mini PCIe Card Wireless Router PC Repeater Desktop FPV UAV Drone P-S4 Bauen: Amazon.de: Computer & Zubehör

And to make it longer this cable: Goobay 51675 WLAN Antennenkabel 1m / RP SMA Stecker auf RP SMA Buchse / Verlängerungskabel für WLAN Antenne Repeater & Router / Antennenkabel Verlängerung 1m: Amazon.de: Elektronik & Foto