Questions tagged [rcservo]

An rc or hobby servo is a closed-loop servomechanism, typically used in radio control model, hobby or small-scale robotics applications. It usually consists of a motor coupled to a sensor (e.g. potentiometer) for position feedback, typically using a high ratio gearbox.

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How to connect a servo motor and a crank shaft

I have a standard 5v I am using the horn it came with it, I mean this piece: Like the long arm in the middle. Each of its holes are 1mm diameter. Then I have a 3d printed crankshaft I did: Its ...
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43 views

TGY-6114MD Servo motor needs push to start

I currently have an inspection robot deployed in a remote part of Africa that has a failing Turnigy TGY-6114MD servo. The issue appeared randomly. The servo won't respond to commands unless given a ...
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467 views

Controlling a digital 360 degree servo

I have successfully controlled an analog 360 degree servo using a slide potentiometer, with the pot sending a 1000ms signal at one end of the pot and 2000 ms at the other. This gives me nice and ...
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Question regarding the orientation of Coxa servos in a HEXAPOD

I'm making a Hexapod robot (this is my first robotics project ever) and I'm having a hard time deciding the orientation of the servo motors on the COXA section. The hexapod I'm making is based on this ...
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What frames are supported by the Dynamixel XL-320 OLLO?

I was recently looking into purchasing either a Dynamixel AX-12A or XL-320. The XL seems to use OLLO frames, which only seem to be available in a toy-like set. I was wondering if there are any other ...
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digital servo won't seek to angle if delta between current position and target is more than ~15 degrees

My students and I are using a Hiwonder LD-220MG digital servo to position a "shoulder" on a robot. We are seeing a behavior (on every one of these servos that we test) that it won't go ...
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Can I use a breadboard to power multiple SG90 servos?

I am planning on using 10 Towerpro SG90 servos, which operate at 4.8V or 6V and can require a maximum stall current of 700ma. If I use a breadboard like this one (https://www.amazon.com/gp/product/...
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Steering servo goes full lock when PCA9685 is powered via BEC

Short description: my steering servo goes into full (right) lock when my system is wired in the following way: Pi provides power to the breakout board ESC with BEC is used to provide power to the ...
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FlexiTimer giving errors in servo motion

I am working on a quadruped bot, spiderbot and I am trying to make a creep gait using Forward kinematics however, for some reason my code stops working after the execution of the line - ...
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Servo malfunction

Summary I am making an automatic door for my chickens including a servo motor. In the process I actually shorted my 5V from my Arduino. The servo is powered by external batteries and only gets its ...
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190 views

Arduino Lightsensor Blocking Code

I have a GY-31 Light sensor and I am trying to make a skittle sorting machine. There is a little wheel skittles can drop into then they are turn to 90 degrees read by the light sensor then dropped out ...
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314 views

What dependencies do I need for USB programing in python with pyUSB?

I am trying to get the usb.find command to work properly in a python script I'm writing on Angstrom for the Beagleboard. Here is my code: ...
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269 views

controlling 6-axis robotic arm with raspberry pi, what instructions can do this?

I have been trying to build a robotic arm using a PCA9685 servo controller, a 6-axis robotic arm, and a raspberry pi model b+. I wired them all together accordingly but I have no idea how to actually ...
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58 views

How can i tell if my HS-485HB Servo is an Increased Rotation servo?

Our Robotics Team (Go TuxedoPandas! ordered a mix of regular and "Increased Rotation" servos from Servo city. However,it appears only the outside packaging is marked. And only with a sticker. Is ...
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How to build a working r/c crane capable of lifting 2 lbs/1Kg

Building an r/c crane capable of lifting and rotating 2.2 lbs. Have constructed the crane with a base on a ball bearing lazy-susan for rotation of 90 degrees. The question is: how to attach the crane ...
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98 views

What erector sets will function with normal servo motors?

I need a basic erector set that the parts will fit with servo motors and dc motors. Preferably below $100. I've looked at Minds-i basic set and it looks good except I don't know if it will function ...