Archived: the OG noob question thread! 😀

hobbyking is good for stuff like that.

also

https://www.servocity.com/electronics/wiring/leads/servo-leads

possibly ebay then?

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Anyone using the BKB Gps module in the US? How is the coverage?

GPS coverage is the same anywhere in the world - That’s the advantage of satellites. As long as the module can pick up the signal for at least three satellites at any given time (there are always at least four above the horizon at any given place and time) it’ll work. More satellites means better accuracy.

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Can you use the 5V pin of an arduino as an input?
I thought it’s output only.
How do you power an arduino with 5V (without USB) ?

Got this question because of this diagram

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There should be a Vin (voltage in) pin near the 5v pin that will take a range of voltages in…
While the 5v pin technically works as an input, low-quality supply voltage can burn up the regulators on the board, making it and you into very unhappy campers.

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Exactly! I don’t see why SolidGeek would make this dubious decision… But it’s true that VIN only works when you apply 8V-12V

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Any reason to choose this:

Over this:

SolidGeek has the above one in his parts list but he mentioned its bad quality - I just want to make sure I can use every Nrf24 module and treat it the same. Does the antenna help with the connection?

Mindfuck…
What’s the differences???

[Though I still don’t know if a zigzag pattern or a standard antenna is the better option or if there any differences, I now know whats the difference for some of them. Some have just a different connector, but some have PA and LNA. PA stands for power amplification, idk why it’s used. A low-noise amplifier ( LNA ) is an electronic amplifier that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio]

Edit:

Found gold!!! :slight_smile:
https://www.google.com/amp/s/lastminuteengineers.com/nrf24l01-arduino-wireless-communication/amp/

That would probably be why… Necessitates a boost converter if higher voltage isn’t available.

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I found two pretty old lipo batteries
3,7V 500mAh.
Both seem to be 0 volt and one feels like a balloon…

Its swallen right?

The other one looks fine from the outside, but shows 0V as well… Any hope to revive?

What are the green and the blue wire for?

Solder the wires directly on the receiver and ESC, and not use a cable at all. Besides, a cable can come loose.

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@Trampa Is it possible to remove the annodisation on the vertigo trucks? Does it need to be retreated after to prevent rust or can they stay raw?

Can anyone help me desperate to get my board up And running today

Some form of communications, I’d guess. Something serial most likely, but what protocol/baudrate/etc is anyone’s guess.

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There are a million-and-one things that could be causing that, and we have no way to magically know which one it is. Especially because I haven’t seen any information about what your setup is like.

Could be any of the following, a combination thereof, or none at all:

  • too long battery wires
  • not enough filter capacitance on the vesc
  • shitty vesc
  • defective vesc
  • damaged vesc
  • trying to run too much current through your vesc
  • smashing the throttle from a standstill
  • the phase of the moon
  • the conjugation between Mars and Jupiter.
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Guessing it’s cause I am trying to run to much current through them

They are vesc 6 form trampa

I used to have them set to 45 current and 45a brake current

Then I just updated And set to 49a current And 49a brake current

Using 12s5p 30q

That shouldn’t be enough to cause overcurrent faults, especially with vesc6s. IIRC those have been tested to 120A++.

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Don’t have long battery wires and I was using the throttle like I usually do

I will see if changing back the settings will help

In fact, I ran a pair of them at 40A battery and +/-80A motor each for a while with no issues whatsoever.

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Aaaaanyway, it’s late as hell here and I gotta get some sleep. I’d suggest making a thread about your build/issues and see if anyone can help there - this thread moves so fast that oftentimes questions get lost in the shuffle.

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