Brydon Gibson
  • Member for 1 year, 9 months
  • Last seen this week
  • Ottawa, ON, Canada
Why do higher voltage batteries need lower KV motors?
Accepted answer
9 votes

They don't necessarily, however a given amount of power will be required to rotate a motor at a certain RPM with a given propeller. kV, the voltage constant of a motor, is the maximum RPM it can turn ...

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What is the standard setting for the Ele stick in FPV mode
Accepted answer
5 votes

Short answer The standard is that pulling the elevator stick backwards lifts the front of the quad, the same as an airplane (pull up). This is the same regardless of LOS/FPV/otherwise. Longer answer ...

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DJI spreading wings 900 propeller size
4 votes

Short answer: You cannot from the stated dimensions Pitch is more about angle of the blades (it's a bit more complicated, and is also an outdated calculation, see "advance ratio", from which ...

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Charge Tello while powered on?
3 votes

Charge controller solution Many (cheap) charge controllers have difficulty both charging and providing power at the same time. Look into how solar/off-grid guys do lithium charging (you need a ...

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Home made simple drone- need some directions
3 votes

You need a flight controller to stabilize this machine. As you've found, motors are not exactly identical (nor is the air they are pushing, plus many other external factors). The flight controller ...

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How useful is knowing the torque generated by a motor prop combination?
3 votes

Not very useful. If you're designing at the absolute limit of what a frame can handle, such that it's as light as possible, then maybe you'll want to know the maximum torque, but you should be ...

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FC won't go into boot mode
2 votes

You need to select "no reboot sequence" in the betaflight flash tool. The flasher by default tries to reboot the flight controller into DFU mode on its own, even if it already is in DFU mode....

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Brushless Motor Acting Weird
2 votes

[Sensorless] brushless motors cannot be easily started from a stop. There is no way for the ESC to know where in the rotation the motor is, so it must make a guess, and "bump" the motor ...

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Which frequency band protocol to be used for fixed wing gliders?
Accepted answer
2 votes

There are many different currently leading control frequencies, and you can also deviate from these and design your own radios if you'd like to pull specific advantages/disadvantages 2.4 GHz ...

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FC powers RX only if USB is connected?
Accepted answer
2 votes

A quick look at the kakute shows that it definitely has a regulator on board, so it should be able to make 5V from the provided vbat. I would suspect a bad cable from ESC to FC, which can be confirmed ...

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FPV system for ground vehicle
2 votes

Lower frequency = better penetration* A 900 or 433MHz control link (DragonLink is the only plug-and-play 433 I know of off-hand) will penetrate quite well, and has impressive range with direct line of ...

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Are the power connections for BECs of ESCs made in parallel or series with each other?
2 votes

Contrary to the previous answers, on a traditional flight controller (taking the KK2 board as an example), all 4 BECs can be connected together if the user blindly wires it that way. Whether this is ...

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Is it possible to attach I2C and USB based sensors to the flight controller and receive some outputs via telemetry?
Accepted answer
2 votes

i2c Yes. This is how flight controllers talk to the already available sensors on board*. The addition of barometer and magnetometer sensors (and any other sensors that these flight control softwares ...

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What is the advantage of using more motors?
2 votes

Contrary to the other answer, a single larger propeller is more efficient than multiple smaller propellers. Adding motors (especially in a coaxial configuration) to achieve a required lift should be ...

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All motors vibrating but not spinning?
2 votes

This all sounds like it's the motor side of the ESC, not the power supply side. If the ESCs aren't rebooting, then they aren't browning out and your power supply is fine. Check motor connections to ...

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How can I increase the lifting power?
2 votes

From a practical standpoint, 2450kv 2212 on 1045 is too much prop. If you want more power, either current or voltage must increase, since you're not changing voltage, current will increase ...

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How to visually inspect the magnitude of PID gains?
Accepted answer
2 votes

This comes with an understanding of how the PID algorithm works and what it actually does. Bardwell videos can be good, but non-quadcopter reference on what a PID controller is will be the best way to ...

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Drone which can be controlled via 4g network
1 votes

There's a few components at work here - but what it boils down to is: You need a LTE modem and a flight controller that can speak the same language Look into LTE/4G modems and their outputs. If you ...

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Help getting this flight controller to work with this receiever
0 votes

It's unlikely that the Naza M lite supports SRXL2, especially out of the box since SRXL is many years newer than the Naza line of flight controllers. That being said: "+" goes to 5v (or 3.3,...

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