Questions tagged [esc]
Use in reference to electronic speed controllers, used with both brushed and brushless DC motors on drones and model aircraft.
40
questions
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0answers
10 views
BLDC Motors not spinning at commanded RPM
I have a F450 Quadcopter frame with BLDC motors of 1000Kv and ESC (simonk) 30A each. I am trying to verify if the bldc motor rpm output at a commanded rpm is same as commanded rpm. I am using ...
3
votes
0answers
13 views
Why isn't my manual DSHOT600 programming of a HobbyWing ESC not responding to direction change?
I wrote a firmware for an STM32L4 board to talk to a HobbyWing XRotor Micro 60A running BLHeli_32.
I can drive each motor indiviudally just fine using DSHOT600 by bit-blasting the signals out of GPIO ...
4
votes
3answers
72 views
Why can't quadcopters handle failure of one rotor?
Ardupilot can detect (and it logs) motor output mismatch. I think detecting in flight motor failure is possible with modern firmware and flight controllers. Then if one rotor fails, why can't we have ...
5
votes
1answer
33 views
Connecting 4 in 1 esc with power module
I have a 4 in 1 iflight esc currently connected to my motors. I am attempting to interface it with my flight controller (Pixhawk 4), which comes with a power module (https://docs.px4.io/master/en/...
8
votes
1answer
82 views
What is Commutation Enhancement in BLHeli_M and what should i set it to?
In the BLHeli_M version of the BLHeli Configurator, theres an Option for Commutation Enhancement. By default its set to Async-PWM but it can be set from 3%-CE to 100%-CE. What does this Parameter do ...
5
votes
1answer
43 views
My esc cuts the motor when I move control surfaces a lot
I finally built my plane and started testing it on my workbench. If I moved the servos a lot (using my transmitter), the motor would cut out, the ESC would play a tone similar to when I first turn it ...
5
votes
1answer
213 views
Wiring a 4-in-1 ESC to an Arduino Uno
I have four brushless motors that I want to control using an Arduino Nano. I was looking at getting a 4-in-1 ESC controller similar to this one on amazon.
At this point in my project, I'm more ...
6
votes
1answer
41 views
Help finding ESC for brushless motor
I'm very very new to hobby electronics however I have studied a bit about basic electronics in school. I have four EMAX 0802 Brushless Motors and I want to drive them with an Arduino Nano. I know that ...
5
votes
1answer
62 views
Why does motor not want to go above 2/3 thrust?
This is related to my past ESC troubles. See link for some flight history.
I tried the recalibration as suggested by ifconfig, which sadly didn't work. But now the motor will not go above 2/3rds ...
3
votes
2answers
396 views
Motor will not go above half thrust. Why and how to fix?
I fixed the esc of my aircraft, but now it won't go above half thrust for whatever reason. Here is a short record of the electronics in the craft;
Crashed twice, broke esc, soldered 3-pin ground ...
6
votes
2answers
52 views
DJI F450 ESC calibration fail
everyone. I am building a DJI F450 clone. I've got everything attached except for the propellers. The Pixhawk connects to my mission planner via USB. The remote controller is paired with the drone. ...
5
votes
4answers
208 views
Is it common to break ESCs?
I'm pretty certain my ESC is broken, so I went looking for some on amazon. I found a decent one for a good price, as well as a 4 pack that was a better cost per unit. I don't really want to have extra ...
3
votes
1answer
112 views
ESC power up beeps sound twice: du-du-du…du-du-du beep-beep
Just recently, my power-up beep sounds have changed. The normal sequence is just du-du-du beep-beep for ESC power, then throttle signal, right?
Now I get du-du-du, pause, du-du-du (again) beep-beep.
...
3
votes
1answer
44 views
Flight controller or ESCs on Eachine Viswhoop not booting properly
After last flight my Eachine Viswhoop stopped booting properly and arming (link to gfycat with sound). When connecting battery to drone I can hear FC beeping but don't get second set of "beeps&...
3
votes
1answer
44 views
Vibrating like a jelly when takeoff
I have Kotleta 20 UAVCAN ESCs. When I trying to increase throttle, motors are vibrating like a jelly. How can I configure my ESCs via development port? What are best options for non vibrated flight? ...
1
vote
1answer
141 views
Is there a benefit to using multiple capacitors on FPV drones?
From what I've heard, you need at least one capacitor on the ESC of a drone so that it can smooth out the voltage spikes to prevent electrical noise and improve the longevity of the ESC. If this is ...
5
votes
1answer
287 views
Betaflight with Mamba F405 MK2 stack 40A ESC's and XING-E 2207 motors problem
I build a quad using Mamba F405 MK2 stack 40A ESC's and XING-E 2207 motors.
Here are some pictures of my configurations on Betaflight and BLHeli Configurator:
https://imgur.com/a/mFLDiVp
Also video of ...
4
votes
1answer
84 views
ESC burned twice
I got burned my ESC twice, this makes me think this is not a coincidence, but I'm doing something wrong. Would be glad if someone would be able to point it out.
I have a simple drone, with the ...
5
votes
1answer
76 views
Estimate safe ESC curerent for 4108 600kv motors?
Is there a way to safely guess what current ESC's will need to be with this motor (or any motor in general)? The motors are rated 23A in the table, but that's only with a 4s; I might use a 6s in the ...
6
votes
2answers
213 views
Unrecognised ESC motor connector
I purchased an ESC and a Speed 400 motor about 17 years ago with the intention of building my first electric powered model plane. Life took its various turns though and my time for R/C modelling dried ...
8
votes
1answer
87 views
Is there a method to wire a brushless motor to an ESC so it spins in the required direction first time?
So I know that three phase motors will reverse direction when 2 wires are swapped round, or that the direction can be changed in software (such as BLHeli).
But is there a method to get it right first ...
5
votes
1answer
213 views
4 in 1 ESC and FC won't turn on when connected together
After crashing my drone recently, my ESC and flight controller won't turn on (the power led lights up on the FC, but nothing else works either it doesn't anymore, or I was wrong before) any more when ...
6
votes
3answers
246 views
How to determine the lowest safe ESC current rating for a drone build?
I was planning to build a quadcopter and was wondering how I should decide what ESC to get. I'm asking about ESC current ratings. I am building a 7 inch drone using 4s with 2306 1900Kv motors. I have ...
7
votes
1answer
262 views
Grinding sound on FPV motor but no apparent damage
I have been testing a new brushless motor for an RC plane. It is a 2200KV motor controlled by a 30A BLDC ESC. I heard a grinding noise coming from my motor, as demonstrated in the following video: ...
1
vote
2answers
226 views
How to prevent an ESC from overheating?
I have a 5-inch drone with individual ESCs on the arms of the frame. The ESCs tend to get very hot (somewhere around 70°C) and I'm not sure what is causing this and how to keep them cooler. Are there ...
2
votes
1answer
231 views
How to measure the RPM of a drone motor using Betaflight?
I am interested in finding out the RPM of the motors on my drone with certain amounts of load and without load. Is there some way to measure the RPM of a drone motor using BetaFlight? If not, is there ...
2
votes
1answer
252 views
How can I set up appropriate motor mixing for a frame of a custom layout?
First, whilst this post is mainly about how to program in Betaflight, it also involves ESC layout so I feel it is appropriate for this Stack Exchange.
For example, I intend to create a frame that is ...
5
votes
2answers
2k views
When I power up my flight controller and ESC's, I hear a series of beeps. What do all of the beeps mean?
How can you use the series of beeps you hear when powering up to diagnose issues with your equipment? Should all of the beeps be synchronized or is it ok if they are slightly off? Are there ...
1
vote
0answers
112 views
What motors, battery and ESC to use for a drone of payload >50kg?
So I am designing this octocopter which can lift up a payload of more than 50kg, min 50kg for an intra-city package delivery drone. From what I figured, with 8 motors, the safest thrust needed will be ...
5
votes
1answer
93 views
Does active braking help protect propellers from damage?
As far as I know with active braking option enabled in BLHeli32 the speed controller will counteract the free spinning of the rotor according to throttle value hence making it slow down quicker when ...
6
votes
3answers
245 views
What happens if i select the wrong number of motor poles in BetaFlight?
what kind of effect has on my gear and flights to have set a different number of motor poles that I actually have installed. for example, my motors have 14 poles but I set 12 on BetaFlight or vice-...
6
votes
2answers
164 views
Can I salvage a 4in1 ESC?
I have a 4in1 Brushless ESC that only one ESC burned out on, but the rest should still be usable. Is there a way to salvage it and use a single ESC to replace the burned one or something? If so, how ...
5
votes
1answer
98 views
What is DSHOT in ESCs?
I've heard that modern quadcopters use a DSHOT protocol. Could you describe what it is?
What's its purpose?
3
votes
1answer
283 views
What happened to DSHOT1200 support in Betaflight?
I just went to update my flight controller from 3.5.3 to 4.1.0, and I noticed that some time in the past two years the option to enable DSHOT1200 was removed from Betaflight.
Does anyone know why ...
3
votes
2answers
159 views
How hot should an ESC get?
What is the maximum safe temperature that a brushless drone ESC should get? What could happen if a brushless ESC were to go over its maximum temperature tolerance?
6
votes
3answers
147 views
Can I run two motors off of one ESC?
Normally, a dual-motor plane has two ESCs but could I connect two brushless motors to one ESC? What would happen to the torque and speed of each of the two motors connected to the ESC?
5
votes
1answer
197 views
How to create a motor startup tone with a BLHeli ESC?
I am using a 32bit DShot1200 ESC, how can I make a custom startup sound for when the drone is powered on?
2
votes
4answers
106 views
Effect of motor load on ESC?
I know that when a prop is caught on something or is slowed down by something it can put extra strain on the ESC or even burn it out.
If I was using a 2207 motor with an unusually large and heavy ...
5
votes
2answers
55 views
ESCs for inverted flight?
What types of brushless drone ESCs are reversible and will work for flying inverted?
11
votes
3answers
553 views
What does BEC, SBEC, UBEC, and OPTO mean for brushless motor ESCs?
I'm looking to purchase an ESC to go with a brushless motor. Many of the product pages include terms related to a BEC, such as SBEC, UBEC, and Opto.
What do those acronyms mean and how should I ...
