Tagged Questions

2
votes
1answer
73 views

Winch or regular servo

I am trying to build a robotic arm and for the base I need a servo with a lot of torque. After browsing through hobbyking's servo selections I noticed that winch servos offer a higher torque for ...
0
votes
1answer
264 views

Test ESC using a Servo Tester

I'm trying to test my 20A Hobbywing skywalker ESC. For that I bought this servo tester from ebay I'm a bit confused about the servo tester input. Shouldn't it be just supply power? Then what is ...
1
vote
2answers
510 views

DIY Servo arm using wrong inverse kinematics doesn't make a straight line

I have built a Servo-Arms with HS-422 servo (super simple basic servo motors found in a starter kit) that gets angle values with inverse kinematics in Processing (java). The inverse kinematic (on ...
1
vote
2answers
6k views

Motor control with an Arduino UNO… Is it possible (and safe)?

I have an Arduino UNO and an inexpensive RC jeep with a functional DC motor and front-wheel turning servo, but I don't have an Ardumoto shield to control it (yet). I'd really like to learn if it's ...
2
votes
2answers
507 views

Driving servo motor using open cv

I'm working on a object detection robot project.I'm using open cv software to detect objects. My question is how can i take open cv outputs(x-y coordinates) to servo motor.and how can i interface ...
1
vote
2answers
524 views

Need oscillating servo/stepper motor guidance

EDIT: Additional Information below original post... Looking for a 360 degree servo motor that has adjustable control for timing of steps (or at the least timing per full oscillation) and can support ...
1
vote
2answers
401 views

Powering a Servo: Do I need a separate power source?

I have a project that utilizes two strong digital, coreless servo motors. Whenever I use DC motors, I usually need to have separate power sources for both the microcontroller and the motors (due to ...
4
votes
3answers
1k views

Which servo motors for a precise but not powerful robotic arm?

I've just got into electronics with an Arduino explorer kit from Oomlout and I have learned a lot about electronics so far, but now I want to start my first proper project. A robotic arm. It should ...
0
votes
1answer
201 views

Robot grip hand for the disabled

I am looking to build a small grip arm for the disabled. My goal is to attach this robotic hand to an arm of a person. This robotic hand is used to open medicine bottles (like those you get when ...
3
votes
1answer
371 views

Rotation span of SparkFun ROB-09065 servo

Does anybody know what the rotational span of the ROB-09065 servo from SparkFun? And even better, is there a datasheet available anywhere?
9
votes
3answers
1k views

How do I measure the current flow to a component?

I'm building a hexapod robot using simple servos and I was wondering how feasible it was to measure the current flow to each servo (5-6V DC to a maximum of 0.25-1A (I haven't found the spec for the ...
9
votes
2answers
1k views

Unit testing AVR assembly language

How do you unit test your assembly code? I'm working on a serial servo controller as part of a hexapod robot project and the code has got to the point where it's becoming complicated ;) Anyway, I'm ...