Servo? Answered

Whenever I connect an arduino to power (which has servos connected to it) the servos always go to the 90 degrees position first and then go through the code. Any way to prevent this from happening?

Question by SA-DIY   |  last reply


servos?

Where can i find a battery opperated servo to push a button every so many seconds

Topic by colmon9   |  last reply


Huge Servo?

I read the instructable on how to turn a servo into a a geared motor, but with that board that is taken out of the servo, could you attach that to any motor and make much larger servos? kc

Topic by kcedgerton   |  last reply


Servo help

Do I need a motor shield for my arduino to use servos? Also where can i find REALLY cheap servos?

Topic by Alcreion   |  last reply


spraypainting a servo

Does anyone here have any advise on how to best spraypaint a servo or if it can even be done without causing damage to the servo. thanks

Topic by budsiskos   |  last reply


Servo to shaft ? Answered

Hello, I would like to ask if there is a way to couple a servo motor to a shaft. Thanks.

Question by flonect   |  last reply


PIcaxe servo? Answered

How to i control a servo with the picaxe can someone explain in detail i saw in the command section the servo and servopos commands but didnt quiet get it can someone plzzz explain it to me ang give a eg code for making a servo move from side to side .

Question by robot1398   |  last reply


Servo Position

Hey i was trying to control the servo using joystick(potentiometer). i am but stuck at a problem when joystick is at center servo is at 90° when i move the joystick to left, servo sets at 0° and when i release the joystick it came back to its 90° but when i move the joystick to right, the server does sets to 180° but does not come back to 90° on release the joystick, it sets to a little more than 90° like 100° what could be the problem ? #include Servo servo; int sp ; int js_x; void setup() { servo.attach(3); } void loop() { sp= map(js_x ,0 ,1023, 0, 180); servo.write(sp); }

Topic by DabuHackker   |  last reply


Arduino And Servo

Hi..  i want a motor which can drive my robot at humans normal walking speed.. and also whose speed can be controlled dynamically.. Can anyone plz suggest me such servo or any dc motor.. motor should be compatible with arduino uno..?? 

Topic by amolamol   |  last reply


sensors and servos

I am working on a piece where I need to hook up 7 servo motors to the arduino (each rotating at a different speed, some in one direction, others in the other) but basically an on/off with a motion sensor. I am using a full rotation servo. I amusing an infrared sensor but the servo is still moving (awkwardly and jerky) when not sensing motion, but then runs as normal.Here is the code I am using (right now, I am only at 1 servo – trying to get the sensor right first) : #include Servo myservo;int potPin = 0; //analog pin used to connect the sensor int ledPin = 9; //select pin for the servoint val = 0; //variable to read the value from the analog pin void setup(){   myservo.attach(9); //set up the servo as usual pinMode(ledPin, OUTPUT); //variable to store the value coming from the sensor   Serial.begin(9600); //for watching the speeds in the serial monitor} void loop() { val = analogRead(potPin); // read the value from the sensor   val = map(val,0,600,0,255); if (val>80) digitalWrite(ledPin, HIGH); //turn the ledPin on    else if (val<80) digitalWrite(ledPin, LOW); //turn the LedPin off   Serial.println(val); delay(10); } – any suggestions?

Topic by wwischer 


Servo Help!

First of all, I'm not the best with Technology projects, just putting it out there in case its an obvious answer. Anyway, I have an arduino project that im working on. All it is is a servo that spins after 24 hours, I thought it would be a simple project (I've worked with arduino a little bit) and I wired it up correctly, I'm sure of that, but after I coded the program, the servo wouldn't spin! It just made a dull buzzing sound. At first  I thought it was my program, so i tried just about every basic "sweep" program i could find online about servos. Every program had the same result, a faint buzzing sound and no spinning. Next i thought, maybe the 5v wasn't enough to power the microservo, so i used a external 9v and ended with the same result, buzzing, no movement. Can Anyone Help me?! Please! Is it just a simple solution? Or is my arduino micro controller not working! Please help me because i would like to enter the project in a contest that ends soon! Thank You!

Topic by Waztsn   |  last reply


servo motor

Ok i was wondering if anyone can send me a parts list and very detailed directions and how to make a compact servo that i can make lift 150lbs and yes i know its a dawnting task  but i have fait in yee becuz idk how to do it myself :\ but whom ever does this will be listed on my finished product and credited on my product thank you and good luck :)

Topic by prini   |  last reply


servo board

Fount this on my daily Internet rumage. its a board that turns a servo in sequence with a poteniomiter. wonder if it could be made to control a more powerful motor?

Topic by HP psc 2110 all-in-one makebot   |  last reply


Motors and servos

Please all, what motor could I use to create a to/fro movent?

Topic by ijem   |  last reply


SG90 servos

I have some SG90 servo motors.I just bought some mini lasers on Ebay.I programmed an arduino to oscillate the servo back and forth 45 degrees.I mounted a tiny laser on the servo arm. I want to repeat this 20 times and make a moving laser show to be incorporated into my Christmas lights next year. I'm thinking I could mount the servos under the roof overhang and have them pointing down at the sidewalk, sweeping back and forth. My question is how reliable are these servos? Will they run for 5 hours a night every night in December? I have one on my desk sweeping back and forth and it seems ok, but I haven't run it for a month either. Thanks in advance

Question by sdtag   |  last reply


Servos motion not smooth

Hi, im trying to program my servo to do a simple sweep (smooth motion). but instead it jerks a small degree everytime. the code i've used : #include Servo myservo;  // create servo object to control a servo void setup() {   myservo.attach(9);  // attaches the servo on pin 9 to the servo object } void loop() {   myservo.write(10);                  // sets the servo position according to the scaled value   delay(1000);                           // waits for the servo to get there   myservo.write(150);                  // sets the servo position according to the scaled value   delay(1000); }

Topic by fujiapple   |  last reply


Servo Controlled door

Hey I'm making an arduino controlled door. Will a servo provide enough torque to open and close a bedroom door?

Topic by fruitkid101   |  last reply


servo controlled by arduino

Hi everyone and thanks for looking. I wanted to conrtol a servo using ardunio. This is what I want the servo to do, I want to be able to flip a switch and have the servo move. switch in "off" position, servo is at rest flip the switch to "on" position, servo moves 90 degrees and holds switch to "off" position, servo returns to rest position I am just starting out with arduino and really didnt know what was need to acomplish this. any help would be great. Thanks in advanced

Topic by thirdGEARchirp   |  last reply


Transform a Servo into stepper?

Hi, I'm wondering if it is possible to transform, with mecanisms like in watchmaking, a sigle servo into a stepper. When the servo turns left, a crank will turn of a fixed amount of degree in the clockwise direction. When the servo turns right, a crank will turn of a fixed amount of degree in the anti-clockwise direction. The main advantage of this is that we can have a stepper motor created with a servo. I'm searching such projects without results... Am I the first one to think about this ? How can I imagine such a mecanical project ? Thank you

Question by janolap1   |  last reply


micro servo controlling?

hai guys, i have a micro servo motor . i planed to do hobby project with it . can any one guide me to make the servo turn around.  

Question by spicesharma   |  last reply


Servo SM-S4304R

After long time of searching, without success, i would like some help. I purchased one Sm-s4303r servo motor. My questions are: 1.How can i do it work for 3 seconds at normal speed and to stop it for example 12hours. To work 2 times per day. 2.What will be the suitable servo which can do 180° in every movement. I mean 180° now and the second (to complete the cycle 360) in 10 hours.. I would be glad if somebody could help me. Thanks, Chris

Topic by chris__p   |  last reply


Picaxe and Servo problem

Ive been using this picaxe uC for a while and have had no problems, but in my latest project I wanted to pan a servo back and forth. Problem: for the life of me I can only get the servo to move in one direction. It is a GWS pico servo and I have "operated" it on 5v and 6v, so i dont believe it to be a voltage issue. coding issue perhaps? ( I have tried the SERVO command, the SERVO and SERVOPOS command, and even the correct PULSOUT commands to no avail) I have scoured other forums, even rev-ed.com's, but no one seems to have my same problem. As far as I know the SERVO command SHOULD work fine but doesnt. I have tried the commands with and without a 220 ohm resistor on the signal wire, but this seems negligible. When my picaxe 18x is loaded with any servo capable code and the connections are all hooked up, the servo simply moves all the way and stops. the only way i can "reset" my servo to its original position is by quickly removing and tapping the V+ or GND supply wire to the servo. after the servo has moved I can feel the tiny motor jiggle whenever I tap the signal wire as if trying to work. ANY suggestions are welcome!

Topic by Aleator777   |  last reply


servo programming on arduino?

Hi, i need a help on my arduino project. i need to make daily program my servo motor on arduino. for example; 23:00 at night ,it should turn right 90';  8:00 at morning, it should turn left(back) 90' also; when i need; i should turn this servo, left-right manually via internet. how can i make this, which component i should use, which commands i should use?  any tutorial, or samples like this? i found some examples on instructables like using servo via internet, Control a Servo over the Internet etc. but i dont know how make this two option together. ps my arduino level: intermediate  tI appreciate any help that you can provide :)

Question by herneise   |  last reply


Servos going crazy? Answered

So, I made this https://www.instructables.com/id/Make-A-Simple-Bidepal-Humanoid-Robot/ and after uploading the code for walking, instead of walking, the robot goes crazy https://vimeo.com/209730331 I have attached some pins a bit different from the original code but have adjusted that in the code by changing the attach commands. What do you guys think is the problem? I attached the horns to the servo using this guide https://www.youtube.com/watch?v=nOCagSi1OOU The other codes provided also don't appear to be working. Could it be that I have attached the servos to arduino the wrong way? I considered the right motor to be the motor which appears at the right when  the robot is viewed from the back (white part of arduino).

Question by SA-DIY   |  last reply


How to Control a Servo?

How do you control a servo? I know you can control it via Arduino or some other microcontroler, but can you control a servo with out the need of programing??? I know the servo has 3 wires red, black and yellow... and if what I heard is right, that yellow wire is for controlling it.... Thank you! Comodore

Question by comodore   |  last reply


Breadboard Circuit for a servo?

I am looking for someone that can tell me what to do on a basic electronic breadboard (what timer, resistors etc) to be able to create a circuit to drive a servo. Basically i am an over ambitious art student that wants to use a a servo on a timer to alternate between 0 and 90 every 5 seconds or so (i haven't decided what time i want it to be but figured i could adjust it?) I am learning about these things on a DIY basis but as i am short for time i want to get it sorted. Any help would be appreciated.

Topic by GF88 


servo drive circuit

Does anyone know how to make the circuit like the ones inside srevo motors? I am designing a sumo bot with radio control. I need to use contenuously rotating motors with lots of power to drive the robot. I do know how to modify my servos so they contenuously rotate, but I don't think they will have enough power to push around the other robots. I would like to use one of my 12v gearmotors instead of the ones contained in servos, but I don't want to destroy my servos to do it.

Topic by Stingray   |  last reply


Servo Mod help

Hi Every one thanks for looking at my post. I have a specific project where I need 8 servos which would need to rotate up to 360 degrees. Please note I do not need continuous rotation mod, which would make me loose servo angle control. Given that i ended up with 3 options 1. Buy a winch or sail servo - these are costly about $40 and not sure if they suite my need. 2. Add an additional gear with 1:2 or 2:1 ratio (not sure about the terminology) of the main servo gear ( attached to pot); Servo rotates about 230 degrees now, so limiting it to 180 degrees from code and with the additional gear and modification I can get a 360 rotation on the added gear and use that as my main servo drive. 3. Replace current potentiometer with a multi-turn one ( available for around $2) with similar resistance value, this along with the potentiometer gear stop peg removal would give more than 360 degree rotation. Servo control would not be effected as resistance value is same and angle must be limited from code to keep the potentiometer from going to the end limits. I am just preparing and calculating the current gear values to decide on the specs needs for the gear mod. I need to measure servo pot values to find a suitable multi-turn pot. I would really appreciate if any one could comment on my approach and any alternatives. I wish some one had tried these before and could share their experience. Thanks Satya

Topic by sguthula   |  last reply


Extending Servo Wire

I need to make a servo wire that extends approximately 4 feet and then retracts to a length of 18 inches or less. There is a risk of entanglement, so the less sag and less loose the wire, the better. One option would be to use coiled wire of the appropriate gauge, but a product such as this is expensive. What are some other options?One idea that I had was to build a wire spool mechanism like that of a tape measure. From what I understand, a tape measure uses a constant force spring to somehow apply a retractive force to the actual measuring tape. Can anyone provide a more clear explanation of how a tape measure retracts? Does anyone have any ideas of how to implement this into a wire spool? Other ideas on retracting a very long wire?Thanks

Question by icecats   |  last reply


SUPER accurate servo?

I need to make a device that can move two small servos within 0.01 or less degree rotation (yes, degrees, not radians!).  Currently, everthing I've seen comes up greater than half a degree.  It must have position feedback (stepper without encoder won't work), and the whole thing must fit in a 1/2"x6" tube.  It only needs to move maybe 30-40oz-in, but will always have that load (so backlash isn't a huge issue, but still should be minimal).  A COTS device is best, but it can be homemade, preferably under $50 or so, maybe up to $100 max.  It doesn't need to move fast or continuously, maybe 90 in 0.5 seconds.  It will be run by a microcontroller with a lot of IO pins, and PID control.  Any ideas, products or anything would be great, Thanks in advance. 

Question by jduffy54   |  last reply


Anamatronic servo help!

I'm building a basic anamatronic arm, and I need help in the land of servos. I am pretty much new, so could someone explain to me what oz. inches are, and if possible, reccomend arduino- compatible servos? Thanks a bunch! 

Question by Mr. Jimmeh   |  last reply


change the speed of the Servos ?

I new in arduino and i'm building a robot arm how do i change the speed of the Servos ?

Question by mogy336   |  last reply


Gears for Servos and Steppers

Hey guys (and gals), I've been researching this a lot, but I still haven't the solution.  When you are working on a project and you need a gear for your stepper or servo, where do you acquire it?  For example I work a lot with TowerPro 996 servos, but I haven't found any third parties selling gears for them.   Same thing for motors.  If you are using a stepper motor, like a NEMA or something where do you find a gear that attaches to it? 

Topic by Deft Punk   |  last reply


Where are the best/cheap servos? Answered

I'm looking for the most highest quality servos there is to buy. Or the cheapest.

Question by Alcreion   |  last reply


How to "size" a servo motor? Answered

I have a 28lb solar panel that I'd like to position with servo motors, but not having worked with Servos I'm having a tough time trying to understand how to size the servos that I'll need. I'm finding a ton of "hobby"/"toy" servos that are rated at 25/30KG but am I under/over-thinking that would equate to the ability of those servos handle the full weight, if centrally positioned, of a 28lb array? I get that if they weren't centrally positioned I'd need to figure in leverage weight multiplication, etc., but if they were positioned in the center of the array to form 2 axises would a 30KG servo be able to handle the weight of the array?

Question by ZacWolf   |  last reply


What are continuous rotation servos?

Does 'continuous rotation servos' run on commands like myservo.write(360) (for Arduino servo library)?

Question by sarveshk   |  last reply


Connecting 12 Servo to Arduino

Hi all, I am building a spider-bot using an Arduino and 12 servos (at finish it will be 18 I am waiting for the Arduino mega to arrive) do I need to set something in my Arduino so it will be able to control so many servos?it seems that if I try to connect more then 2 it goes nuts. Thank you.?

Question by YotamB   |  last reply


Info on Arduino Servo Library?

I am trying to build a Wallbot with an Arduino Mini and two servos. The instructable mentions using Arduino Servo Library. What is it and how do you get it? How do you use it? Thanks!

Question by DELETED_afw11   |  last reply


2 Position Servo Controller

I need some help, I am trying to create a damper control using a servo and a 555 timer. Is there anyway that you can use a 555 timer to make a servo move back and forth between 2 positions (0 degrees and 90 degrees) with an with and on/off signal and not a pot? So when the thermostat sends power, the damper moves to 90 degrees, then when the thermostat shuts off the servo returns to 0 degrees? Thanks for the help in advance. -Ryan

Topic by WingmanSVT   |  last reply


How to control a servo with a switch?

As above i was wondering how to fully turn a servo and turn it back just with a switch It's for a dashboard sat nav box that flips up (Might add it on here) Thanks 

Question by webby0121   |  last reply


Control a servo without programming

Has anyone seen this project? http://makeprojects.com/Project/Control-a-Servo-Motor-Without-Programming/990/1 I am trying to do it, but I don't see where to put the potentiometer in the circuit. Although I have built a few kits I am pretty inexperienced with circuits. Am I missing something? I have built most of the circuit on a breadboard. I will post a picture when I am done.

Topic by ehudwill   |  last reply


Feature rich servo controller

Hi All, I'd like to write a servo controller that allows another system to offload some of the low level motion control work to the controller. This is primarily for amateur robotics applications. I'm trying to work out whether a controller implementing the features below would be replicating effort of existing open source drivers and not really worth the bother. Has anyone come across an existing controller that can some/any of the following? Position feedback Alterable traversal rate(s) changeable in real time (mid motion) Different seeking modes (acceleration, stall detection, hammering, error margins) Different communication modes (position queuing, position interrupts, upstream arrival and stall messages, etc) and so on... I'm looking at doing this probably with an Ardunio Nano and controlling as many servos as possible, but the primary goal would be feature richness. I could also see applications for an Attiny version (1 controller to 1 or 2 servos, limited feature set). Has anybody got any thoughts on the idea? Thanks in advance, Andy

Topic by andy   |  last reply


Pushbutton Servo Control with a 555

I've found numerous write-ups on getting a servo working with a 555 IC but it's not quite the functionality that I'm looking for. What I'm trying to do is have two buttons go to a predetermined position but the write-ups have two buttons that just go clockwise or counterclockwise. I know this can be done with an Arduino but I'm trying to avoid that route so I can keep the footprint as small as possible. I've attached a picture of the schematic I was working from.

Topic by XAlliedYouthX   |  last reply


Arduino servos move to music

Hi, so I'm new to arduino and I'm wanting to link arduino to processing. I then want to be able to make servos move to the beat of music that i have loaded on to processing using the computer as a network but I can't seem to find much info anywhere else and was hoping that someone could enlighten me on the process that i should be taking or able to help in anyway would be much appreciated. Thanks  

Topic by TianL4   |  last reply


Rc Servo motor trouble! Answered

I recently took apart a RC Jet Ski. Within the Jet ski there was a servo for the rudder. I Need to know what wire leading up to the RC servo motor do? (green and brown). If I were to take the wires and use them on something else what shall I control them with? My first thoughts were that sending an electrical current though the postive, would make it turn one way, and by the RC control, electrical currents could be past though postive and negative to make it turn left and right. I know what all of the other wires. Thanks Oscar 

Question by oscarthompson   |  last reply


what is the connector for a servo called?

The three wire plug that you hook a servo into, what is it called? i am making an rc car and my reciver has the exact same 3-pin port like on a servo, except male, and i need to get a battery pack for it.                                                                                                                                                                          ,thanks in advance

Question by myakka   |  last reply


sliding pot controlling a servo?

I've been trying find a way to recreate this for some time now, but can't seem to figure out the schematics. anybody know?http://www.youtube.com/watch?v=6kQUyc38IHE&feature;=related

Question by explosive_bagels   |  last reply


A couple of servo related questions.

I was thinking of doing some sort of robotics for the upcoming microcontroller contest, and need to reduce the weight of my design. So, try and lighten the battery pack, and give more current, I want to use 2XAAA @ 3V, instead of regulating a 9V cell down to 5V. The PIC supposedly will run on 2V. So the question is, how well will a servo perform on 2.5 to 3.0V, and what will the current draw be with a light load (I have heard that they can draw a couple of amps with a very heavy load).  Also, I have some 4V lithium ion cells out of a laptop, and need to charge them (They last so long on one charge, that I have not had to charge them since removing them from the laptop).

Topic by The Skinnerz 


Power supply (6 servos)?

Hi guys! I do have question on power supply for my multiple servos. I need a power supply that can provide an enough voltage and current for my servos. Do you have any recommendation for my supply? Throughout my reading, i've found that each servos requires 1A so if i have 6 servos means 1A X 6 = 6A at least to support my servos

Question by naqibzainudin   |  last reply


Quality servos for an low price? Answered

Where can i get good quality servos for an low price?

Question by MACKattacksnipe   |  last reply