Questions tagged [esc]

electronic speed control/controller, used for DC motor speed control, frequently for RC applications.

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How to control ESC from Arduino?

I have an Arduino Uno, 9 volt battery, ESC and a brushless outrunner motor. When connecting the motor straight to the battery the motor rotates once which is good but when using my Arduino code to ...
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wheeled vehicle forward velocity from RPM brushless data

I'm trying to hack an electric RC car with the goal to make it autonomous, as part of my PhD research. The mounted ESC is able to send back telemetry data, including the spinning velocity (in RPM) of ...
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How to attach flysky receiver to racerstar all in one esc and flight controller?

I am building an fpv racing quad I encountered the following problem: I have a Racerstar StarF4s 30A esc and flight controller combo and a Flysky 2.4ghz iA6B receiver how and where do I connect these ...
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Automatic forward and reverse Brushless Motor

The video Here shows a motor using rotational motion to move a load forward and then reverse back, without manually switching it to reverse. How can I program my brushless motor to operate like the ...
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2 answers
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What control circuit element will control an ESC while doing bench testing?

While doing bench testing of motor and prop combinations what simple device would I use in the circuit to properly control the ESC for the full range of power from 0% to 100% ? I have seen a few ...
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Electronic Speed Controller

What should be the specification of ESC that I should use for a 320KV 1820W brushless DC Motor?. Is it necessary to use an 80A ESC?, Basically, How can I choose the required ESC for a motor?
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239 views

Esc calibration

I want to make a calibration setup for BLDC ESC in the simulink model. I'm using arduino mega (3,9,10,11 pins) and quatro 30Ax4 esc. Normally I can set it to it's max, min, and incrementally increase/...
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  • 107
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Identify contacts on wires of an electronic speed controller

I have got an electronic speed controller as pictured in the first image. What kind of contacts are those on the left? The second image is a closeup. edit to clarify question I am asking how to ...
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  • 121
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Quadcopter ESC failure on first test flight

One of my four ESCs burnt out on a first test flight of a new quad build. I plugged the battery in, armed the drone, and one of the motors spun for less than a second before stopping. I immediately ...
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  • 121
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How does one setup an ESC to drive a wheel-hub motor?

I have 2x 350W wheel-hub motors taken from a self-balancing scooter, or hoverboard. My intention is to use the two of them to drive a homemade R2-D2. However, some difficulties have been encountered ...
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2 votes
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What happens when I connected my unpowered servo connector power wire to the powered arduino 5V pin?

I was playing at connecting wires to 'get the feel of it' when I accidentally connected the servo connector red wire to the arduino 5V pin while the arduino is connected to my comp, (and hence powered)...
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What is the difference between speed encoders and esc

I understand that motors come with recommended speed controllers, be it encoders or esc. But what is the difference between the two?
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Electronic speed controllers and total current draw

Do we have to take Electronic Speed Controllers (ESC) into account when calculating the total current draw of the system? As far as I can understand, the motor and ESC are connected in series, so we ...
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2 answers
1k views

difference between sabertooth motor controller and rc esc?

i am building a rc/robot mower. most of the youtube videos show the sabertooth motor controllers being used to connect the rc receiver to the dc motors. But here in Australia, the sabertooth i need ...
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  • 121
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3 answers
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Connected battery, esc and motor does not power up the arduino

I am currently doing my first arduino project and i am having trouble finishing it. I have a 3s lipo battery connected with an esc (120A) that is connected to a motor (270KV). From the esc i am ...
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Bldc motors erratic behavior with Arduino program

I've been making my own quadcopter flight controller using Arduino Mega. This is the sample code I wrote in order to test the esc timers and motors: ...
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Brushless motor from RC car won't spin with even small resistance

I recently bought a RC car kit and after 10 minutes it stopped going. When I throttle, I can see the motor trying to spin but it will just grind and get hot quite fast. The motor does move if I ...
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2 votes
4 answers
3k views

Why does the ESC stop?

I've built a quadcopter with four brushless motors and ESCs (30A). I'm using an Arduino to control them. I haven't written any complex code; just enough to get them running. Everything is fine until I ...
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Pure Arduino Quadcopter

I recently bought a set of escs, brushless outrunner motors and propellers. I'm trying to perform a calibration on the esc, but I can't find how I can do that without using components other than the ...
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4 votes
3 answers
6k views

What exactly are PPM controlled ESCs? Are most ESCs available to build quadcopters PPM Controlled?

First, I don't see any manufacturer or online store telling whether an ESC is PPM controlled or not. Second, I have also been Googling and asking comments in all about ESCs youtube videos for long, ...
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539 views

Can I connect the Arduino usb to laptop after the Arduino is started?

I have some sensors attached to Arduino Uno r3 and an ESC. I start the Motor attached to ESC through Arduino with no USB connected to laptop. It starts correctly. There is a must that I will have to ...
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How to use specific ESC,BLDC motor through Arduino Uno R3?

Attempt to clean up: I'm trying to use this motor with this ESC and an Arduino Uno R3. Typically, I used the PWM pins when I use the Arduino and an ESC, but I can't control the motor even if I use ...
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4 votes
3 answers
4k views

Is it safe to give 5v through 5v pin of arduino uno r3 while usb cable inserted

Is it safe to give 5v through 5v pin of arduino uno r3 while the USB cable is inserted? I have ESCs connected to it which aren't likely to start in other cases. The 5v and gnd is coming from the BEC ...
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2 votes
1 answer
792 views

EMAX ESC Simon Series with arduino

I want to control a brushless motor with the "EMAX Simon Series 30amp ESC" and Arduino (Leonardo) board. I am really confused how to do that. I can't understand which beep sounds mean what. I have ...
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212 views

thrust measurement

I try to find out the relation between rpm vs. thrust for a battery+motor+propeller combination. the image shows my setup and also the measurement result. Can anyone explain how l should use this ...
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How to cut throttle signal to ESC properly?

I have a 16 Channel Servo Driver board from Adafruit (see here), and I communicate to it via I2C using a Raspberry Pi. The servo board is controlling a Qbrain by sending a PWM pulse between 1ms to 2ms ...
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1 answer
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Duty cycle mapping

I need to build a conversion/mapping algorithm from a controller (PID etc.) output to the duty cycle in order to command my bldc motor via esc. I couldn't do it yet because l think l dont know the ...
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  • 107
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2 answers
853 views

Voltage rpm relation

I measure the voltage ESC drawing while increasing the dc motor speed. Multimeter shows that as long as the speed increases the voltage value decreases. Can anybody explain why this is happening?
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1 answer
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Brushless DC motor - Electronic Speed Control - Quadcopter

I'm a student who is doing electrical and electronics engineering. I'm currently doing my final project which is a quadcopter. One of my objectives in that is to make a Electronic Speed Controller (...
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3 votes
3 answers
2k views

Why do my ESCs stop working?

I'm new to robotics and this is my first time building a quadcopter. I'm unable to work out why I keep losing ESCs. Most recently in testing, I've managed to calibrate all 4 ESCs and accurately ...
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1 answer
548 views

How to control a dc motor

I have 2 of these 12v motors and a 12v battery http://www.enigmaindustries.com/Motors/Bosch_EV_Warrior.htm I would like to know what the best solution for controlling this motor with an Arduino Uno ...
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3 votes
1 answer
201 views

Controlling an ESC for Brushless Motors with an RPi

I'm looking to build a new (first) quadcopter without the conventional flight controller and radio, with an onboard RPi and applying some newfound knowledge on autonomous control to improve my coding ...
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3 answers
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Quadcopter multiple ESC angles glitch

I'm developing my fligth controller board on Tiva Launchpad for quadcoper and while calibrating PID I discovered an unexpected behaviour: sometimes quadcopter seems to experience random angle errors. ...
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2 answers
188 views

Is there a brushless motor controller accepting over 500 updates/s?

I want to use brushless for my line follower. The problem is most ESCs don't accept more than 400-500 updates/s due to the characteristic of steering signal. Is there a way to overcome this with a ...
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2 votes
1 answer
102 views

Measuring the performance and response rate of ESCs

How would i go about measuring and quantifying the performance of an ESC? I am looking to measure the response rate(in Hz) of an ESC, as well as it's performance(i.e how fast it starts and stops, as ...
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7 votes
1 answer
6k views

Why can't i use different ESCs together on a multirotor?

I'm working on a diy quadcopter build from scratch and have bought a 4pack ESC from Castel Creations.While i currently have my quad up and running(sort of), from what i've read on the various sources ...
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3 votes
2 answers
4k views

What happens when a brush-less motor stalls?

Ok apologies for those who think my questions are not direct enough as I got warned about this. I am really new to this and I will try to keep this one direct enough for the forum. For obvious ...
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1 vote
2 answers
2k views

Adding reverse function to a brushed motor electronic speed controller

This is for a Hobby-weight (5.44 Kg) battle robot. I bought two ESCs for my drive motors but the ESCs do not have a reverse function (or brake for that matter). Is there any simple way I can achieve ...
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2 votes
1 answer
408 views

Over-voltage on a brushed electronic speed controller

This is for a battle robot in the hobby-weight class (5.44 Kg max) I want to drive the robot using 2 cordless drill motors rated at 14.4 volts. I have 4S LIPOs which means I have 4 x 3.7 volts or 14....
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3 votes
1 answer
1k views

Purpose of programming an ESC

I am planning to buy an ESC for my tricopter setup. What is the purpose of programming an ESC? I am cost effective and is it really necessary that I should necessarily buy a programming card to ...
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3 votes
2 answers
1k views

Electronic Speed Control Concepts

I am a programmer who has never worked with electronics before. I am learning the concepts and hoping to build a quadcopter, with the control software entirely written by me. Motor control seems to be ...
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3 votes
2 answers
1k views

Will a 20amp ESC run a Turnigy 2213-980?

I'm a noobie just starting out and trying to come up what I need to build my first quadrocopter, I just wanted to run something by people with some experience before I commit to buying anything. ...
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5 votes
2 answers
3k views

Does it matter if my electronic speed controllers are close to my brushless motors?

I have built several quadcopters, hexacopters, and octacopters. Between the flight controller (I use 3DR APM2.6 or Pixhawk) and the motors I use heavy duty power wires as well as a servo-style cable ...
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3 votes
1 answer
5k views

How to know what motor/ESC/propeller combination will work for a quadcopter?

I am preparing for my first quadcopter build and need to know how to tell what motors/ESC's/propellers will work with each other. I also would like to know how to tell what the motors would be capable ...
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5 votes
1 answer
5k views

Quadcopter Throttle and PID mixing to Motor Speed

I've been writing some quad copter software and I am not sure what the best way is to map the throttle and PID inputs to ESC power. My throttle range is 0-1 and my PID outputs are 0-1. My ESC's have ...
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1 vote
1 answer
76 views

How to programatically calibrate Turningy esc?

I have a Turnigy ESC and I am controlling it from AVR. Now I need to calibrate it to set the range of the input. With a servo tester I managed to calibrate it without any problems, more or less by ...
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9 votes
2 answers
13k views

How to use Arduino for ESC control?

I am using an Arduino Uno to control an ESC for my (in progress) quadrocopter. I am currently using the servo library to control the ESC, which works great. Except.. A count of 100 is max speed, ...
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  • 185
11 votes
3 answers
1k views

My Raspberry Pi is losing power in a surge

I have an RC car. The battery provides power to the ESC and then the ESC provides 6 V back out to the receiver. Instead of the receiver I have a Raspberry Pi, which uses the 6 V, steps it down to 5 V ...
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  • 213
1 vote
0 answers
899 views

Making a brushless servo using Hall sensors

I'd like to assemble a prototype of brushless servo system using a RC brushless motor (heavily geared down), a sensored Electronic Speed Controller for RC motors, and a microcontroller to do the PID ...
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1 vote
1 answer
1k views

Minimum speed controller refresh rate [duplicate]

In a quadrotor we need to change each motor's speed depends on its position in space. More frequency will result more stability ( I mean if we can change motor's speed 400 times per second instead of ...
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