Questions tagged [esc]
Use in reference to electronic speed controllers, used with both brushed and brushless DC motors on drones and model aircraft.
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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 ...
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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?
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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 ...
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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 ...
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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: ...
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what is the voltage output from the ESCs of drone motors?
the flight controller i am using is a custom one, which is a teensy 4.0 microcontroller. it cannot have more than 3.3V into its GPIO pins. I know I can use the 5V from the BEC of the ESC to power my ...
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One of my motor don't turn if throttle is raised too rapidly
I've recently have an issue with my quad.
One of my motor don't spin if I raise throttle too rapidly.
If i raised it slowly i the motor turn correctly.
Only one of my motor have this issue and i've ...
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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. ...
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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-...
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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 ...
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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 ...
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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 ...
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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 ...
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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/...
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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 ...
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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 ...
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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 ...
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ESCs for inverted flight?
What types of brushless drone ESCs are reversible and will work for flying inverted?
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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 ...
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Will different brushless motor sizes work with the same flight controller and esc
I recently built a 5-inch quad using:
Diatone Mamba F405 Mk2 F40 Mk2 3-6S 30x30 Stack/Combo (F4 FC / 40A 4in1 ESC)
Motors: iFlight Xing-E PRO 2207 1800Kv Motor with DShot 600 and 4S battery cell. I ...
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Brushless Upgrade for RC Car
I was told that if my question was about motors and ESCs than it would be okay to put it on here even though it has to do with an RC car...
I am wanting to do a brushless upgrade for my WLTOYS 12428 ...
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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?
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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?
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ESC shutting down when motor loaded
I have a BLDC motor and a 300 amp ESC, The ESC shuts down after a few seconds at full load. The motor only draws 2 amps at full throttle, full load and the voltage only drops .5 volts. The battery is ...
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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://i.stack.imgur.com/kOr9L.jpg
Also ...
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Are the power connections for BECs of ESCs made in parallel or series with each other?
I see the 5V power pin of BECs all are connected to the flight controller, but within the flight controller, is this registered as a 4 5V batteries in series or parallel? In series would not make ...
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Lipo battery with an ESC and a BLDC motor
I'm not sure if I can connect four brushless dc motors to my Lipo battery. I don't know how to calculate it. The brushless motor I have is the Turnigy L2210C-1200 brushless motor (150w) and the Lipo ...
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Turn off beeping of ESC if idle for some time
I have holybro X500 V2 kit with pixhawk 6x, which contains BLHeli S ESC.
I usually have this drone turned on while I'm doing some programming on it. But after some ...
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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 ...
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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 ...
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Choosing ESCs for an Autonomous Drone
I'm about to build my first drone. I chose the PixHawk 4 with PX4 as a flight controller and the Raspberry Pi Model 3B as the companion computer.
I am not sure about the ESCs yet. So far I'm ...
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Brushless Motor/ESC Voltage Cut-off
I got an ESC and brushless motor set for my RC car. After I finally got it to work, I put my car back together, but then when I turn on the transmitter and then the ESC, the motor emits a "beep&...
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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.
...
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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 ...
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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?
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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 ...
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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 ...
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ESC overload protection at stall current?
I am trying to build, for the first time a drone, on a F330 frame, 30a ESC and 1000KV 2212 motors... But I destroyed 2 ESCs in the process. It literally burned up when the drone falled and the ...
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Why is the ESC not giving enough current for my propeller?
So I have a Hobbywing Skywalker 80 amp ESC and Sunnysky X3520-720 that I just did a ground test with a power meter. Results gave only about 31 amps at 16.3V which is way under what I was expected (...
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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 ...
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Does all BLHELI_32 ESC supports bi-directional rotation?
Hello im new to drone stuff, im just wondering if any BLHELI_32 is compatible with bidirectional rotation? since blheli 32 software supports bidirectional rotation is it safe to assume that all ...
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Motor doesn't work, ESC doesn't calibrate
After I figured out why SAFE never turned off, now I'm stuck because my motor won't spin and I can't enter calibration mode of the ESC. After turning on the plane, it does three startup beeps in ...
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1
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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&...
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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? ...
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BLHELI32 DShot600 or DShot150 is not activated in my ESCs from my code written in c c++ in testing with 3 different ESC
My question is more related to inner working of ESC than coding. Particularly how to activate a particular protocol like DShot600 or Dshot150. Assuming a generic BLHELI ESC has all these protocols. I ...
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