A servo is a motor, commonly used in robotics projects. This tag is for questions about the servo motor when using it in robotics and other projects.

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3answers
118 views

ServoBlaster problem (auto rotate)

I have rotation bug in ServoBlaster.. I'm using these values: 1500us : Idle 1530us : Pulse left 1480us : Pulse right For example : echo 1=1500us > /dev/servoblaster. BUT, my problem is the ...
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3answers
110 views

Controlling a servo and playing sounds

I've got a serious problem about Pi. It is - I can play sound just fine with a python script either with: import pygame pygame.mixer.init() pygame.mixer.Sound("...").play() or: import os ...
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0answers
47 views

Raspbian crashing after servo.stop_servo()

I have a servo connected to my RPi and I try PWM.Servo's capabilities. The program below does what it should - but after execution it crashes system (it doesn't respond to any input, no animations, ...
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2answers
280 views

my raspberry pi freezes while face tracking using openCV and servoblaster

I'm trying to track face with Pan and tilt motion, using servoblaster and opencv, i followed this tutorial if anyone is intrested.. it runs perfectly but after few seconds camera freezes and it stops ...
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2answers
59 views

What servo motor and mechanism to move the whole Raspi, its camera and case?

I know there is an interesting Pan & tilt from openelectronics but my project is to move (to pan only) the whole raspi and camera with its waterproof case (# 500 gr) It 's for an outdoor site. as ...
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4answers
334 views

trigger cron job from web application

I would like to improve on my project by using cron jobs. Currently, i have a web application that allows me to control servos. However I would like to add another function on the web application ...
1
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1answer
383 views

Using Pan and Tilt servos

I am trying to get pan and tilt camera working with Raspberry Pi. I have successfully gotten one servo to work following this tutorial: I also found this tutorial showing pan and tilt, although it ...
3
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1answer
299 views

How to call ServoBlaster from C#/Mono?

I have successfully installed ServoBlaster, and it runs quite well from the terminal with the command echo p1-22=250 > /dev/servoblaster just like the documentation says. However, when I try ...
3
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1answer
566 views

Servo jumps on raspberry pi boot

I have just started using a servo to drive the front steering of a remote control car frame which i cannibalised. The steering works fine if i start it up and tune it however when i shut down the ...
1
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1answer
781 views

Getting axis values from joystick from jstest into C program

I am wondering if there is a way to get the axis position values from a joystick to feed into a C program. I can run the command jstest /dev/input/js0 and it will display live feedback of current ...
0
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1answer
1k views

Control servo with raspberry pi

I have the following servo I would like to make a small self balancing robot with it. I am having trouble with figuring out how to control it with PWM using pulses to decide what position to move it ...
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0answers
951 views

Controlling a Servo motor

I am having trouble running a servo motor with raspberry pi Here is what I have done so far , I have gotten a servo motor (http://goo.gl/67AsF), I have powered it with a 5 volt power source from a ...
1
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1answer
1k views

How to use a key listener?

Ok, at the moment I am working on adding motors to a lego tank that I have. I have one servo in the front to steer and another motor in the rear that will make it go forwards and backwards. i have ...
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2answers
461 views

How could I use a RasPi to control keg flow?

I'm in the middle of a basement retrofit and have a refrigerator that I'm hoping to convert to a kegerator. Before I go to town drilling and such, I was wondering if there was a way I could use a ...
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7answers
17k views

How can I control an RC servo?

I'd like to control a small RC servo (5 V, 500 mA) from the GPIO pins via Python. Hardware What are the required electrical connections? Can I connect multiple servos to the Raspberry ...