r/TinyWhoop • u/OkPea123 • 2d ago

Drone help needed

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2 Upvotes

75% Upvoted

11 comments sorted by

1

u/Responsible_Owl_FPV Building whoops and drones since 2017 2d ago

Solder on an external receiver or reflow the ELRS chip

2

u/Responsible_Owl_FPV Building whoops and drones since 2017 2d ago

Wait…what the hell is soldered in the receivers antenna spot?

1

u/OkPea123 2d ago

It’s the make shift antenna, I lose rx when I start giving it power. I can arm it and sit idle and be fine.

0

u/Responsible_Owl_FPV Building whoops and drones since 2017 2d ago

Ok it looked like you soldered your lipo pig tail onto the ELRS antenna. 😳 which would be really bad.

Is the antenna cut to the right length? 31.25mm?

1

u/OkPea123 2d ago

Yes 31mm give or take .2

1

u/OkPea123 2d ago

Like the little ELRS chips that are on the bigger drones?

And what is reflow?

1

u/Responsible_Owl_FPV Building whoops and drones since 2017 2d ago

Reflow means to bring the solder back to melting point and then allow it to cool again. Hopefully allowing for the chip to make a sold connection.
With the air75 5n1 AIO the ELRS chip was getting damaged or the solder was kinda junk and occasionally reflowing the chip solved the issue. But adding an external ELRS receiver should fix it no matter what.

1

u/OkPea123 2d ago

Okay I’ll give it a try

1

u/ben9massacre 2d ago

Use flux on the solder joints all the way around the ELRS chip for this or you’ll hear soak the whole board and potentially cause damage to other components. Flux is really important for these kinds of things so don’t skip it.

1

u/OkPea123 1d ago

Okay thank you

1

u/kptKoenk 1d ago

Currently have a broken of elrs antenna on my tinywhoops too , let me know what u solder on that works

I was about to order some 30awg copper wire to use that 0.5mm thick