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Servo

2WD Robot, ArduinoMega 1280, PanPing sensor problem

ielektros.de's picture

Hello everybody. 

First sorry for my English but not good. I want to ask the profis about my robotics problems. :) 
I have a 2wd mobile platform. I played with this so many and my old simple codes was working well. 

But I decided, I want to upgrade a little bit my "stupid" code which was very good with the fixed ping sensor and some IR sensor but too simple. Than I rebuilded all IR sensor first, and builded a little servo for the PING sensor. 

Roster is the Processing file and the other is for the Arduino oooooo spooky image the black and wight 1 that is ! Read more

This is my project [DON'T LOOK, JUST BORING]

BotFIN's picture

STARTED 5.7.2012

Okay, so here's my project, what i am designing.
It is a robot arm!
Some stats:

- 4 servos, not very big
- PICAXE 14M as brain
- SM-S3317S 2.0kg at 4.8V
- 4 Rechargeable 1.2V batteries
- Polymorph and lightweight woodsticks as materials 
- Maybe somekind of sensor and IR receiver
- Potentiometer to control

Pictures coming soon!

Servo

RTGRVNSSLT's picture

How do you program a full continius servo (360 degrees) in a Picaxe 28x1 board?

 

Can't get my HXT900 servo to move

marlonlevy's picture

Hi,

Trying to get my HXT900 to work on my test board but it just screams. I'm using a PICAXE 08M pins 0,1,2. there is a jumper that i set to downlaod and then to use as low for servo. orange cable to pin 0, red cable to pin1 and brown cable to pin2 The following is my code. Anyone out there ever came across this . Note I had it working once on my 18M

 

init: 

low 0

high 1

Miniature servo magnetic clutches

OddBot's picture

Miniature servos are great for robotics, they are small and cheap. Unfortunately they have very small plastic gears that strip easily so they always need replacing....  or do they?  Not any more!!!

Embedded video: 
Balance to one leg, move hand, move head with Power Led on
Using a
Hello everybody,I am back one year later, with my latest construction Red Dragon biped robot http://letsmakerobots.com/node/27414. After my second construction, … Read more

connecting c bracket to servo

Hi im kinda new to useing brackets for servos on my robots and i cant seem to figer out how i connect a servo to a cbracket . The servos i have dont have a rod sticking out the other side like some others do it just is a normal servo . so any help connecting a servo to a servo cbracket would be greatly appresiated thank you

Eight servos - Picaxe 28

AMuniz's picture

I'm trying to build a climbing robot with a Picaxe-28 project board, however according to my design, I need 8 servos. Do you think there would be a problem to plug so many of those? Is there a way to feed the servos from two different sources of energy? As far as I know, the board I'm using is capable to manage that amount of servos. What do you think?

I know nothing about this so maybe a little orientation about what should I read would be great! Thanks in advance.

Navigate around via ultrasound
Using a
This is the third version of Primo. It has ultrasound sensor and bumper. I used my Aperia Arc S like webcam . Read more

Little Black Duck - 12g, 2Kg/cm miniature servos from DAGU

OddBot's picture

Have you ever built a robot and then found your miniature servos were not quite strong enough?
Get yourself a flock of ducks! DAGU's little black ducks!

DAGU are now selling a 2Kg/cm servo that is only slightly taller than a standard miniature servo. The height difference allows for thicker, stronger gears and a bearing to support the load.

Magnetic servo clutches from DAGU

OddBot's picture

After years of being frusatrated by stripped gears in my servos I have finally done something about it. DAGU is now producing servo clutches to suit 8g and 9g miniature servos.

Unlike normal servo savers, Dagu servo clutches can be continuously rotated without damage to the clutch or the servo. They look like a servo horn but are a few millimeters thicker. They can be configured for both standard and continuous rotation servos. Here are some common configurations:

Embedded video: 
Small (low-cost) servo gripper for TROBOT
This is a simple gear driven servo gripper, laser cut out of ABS.  Designed to be a low-cost addition to my TROBOT 4.0 project. Servo drives one gipper finger … Read more

photoresistor to control servo

Photolong's picture

After looking up some info on photoresistors and finding some good info on this site http://www.societyofrobots.com/schematics_photoresistor.shtml ....  i set up a voltage divider using the photoresistor and had it connected with a led ... which would light up or turn off depending how much light was getting to the photoresistor. I then thought it would be cool to connect this to my arduino and controll a servo .... similar to the set up using the potentiometer ...

Embedded video: 

infrared sensors

flare's picture

I've got two sets of phototransistors and infrared emitters put together to make two IR distance sensors. They are both connected in the same way, both powered by my Arduino Uno, both with the same resistor, etc. But when I check the values I'm getting from them, one of them ranges from about 980 - 1010, with the higher value closest to the sensor. The other, however, goes from about 350 - 570, with the higher value the furthest from the sensor.

navigate in various ways, teach me about robotics
Using a
Hi! MAEP 2.0 is the second version of MAEP (please check it out if you haven't already). I won't go into all the details about things that are the same as the … Read more

Gripper

mixmar's picture

This is the first part i made for my bot.

I Used an old RC car, or parts from it anyways.

I will use pressure sensors so it can "sense" how hard its holding things.I will also add another servo so it can spin it's hand.

Robotic arm mounted on an autonomous line follower

hello everyone.

I am working on a robotic arm mounted on an autonomous robot. I am done with the line following part. and It tracks the line pretty well. controlled 2 DC geared motors via fastPWM from atmega16 using motor driver l298, used LDRs and LM324 comparators for the line following. all the programming is done in avr studio 4 and used ponyprog to burn the code in atmega 16.

Problem:

Pick up objects, knows it's position. Can remember and repeat.
Using a
Hello, I've found many great ideas on LMR and thought about posting a robot arm I worked on. This robot arm is controlled by an Arduino Mega based controller called … Read more

Number up to 180 from C# serial print mapped to servo movement

TobyM's picture

Okay, I'm thinking the title probably isn't very descriptive but it's late and it's the best I can do. Basically, I've written a program in C# (I shall unveil this on here in a few days) that ouputs a value between 0 and 180 based on certain conditions. I want to be able to take this value and print it over the serial and read it at the Arduino end as an integer, so i can just have myServo.write(int).

At the moment, in C# I'm using sp.Write(int.ToString()); but I can use the same command to write a byte array and a char array.

Arduino/ servo/ RC basics

I'll start off admitting that I'm a complete novice at robot building, so pardon me for what is probably stupid questions. I have bought an arduino with the intention of building a robot and have an idea of doing so mainly with servos, and I know that I can probably run them off the arduino without any problems helped by the arduino servo library, but can I just plug them in directly to the arduino or do I need a resistor in between or something? And question 2 How do I make my robot controllable via R/C? How do I put those circuits(?) together?

Hooking up a servo to picaxe 28x/40x project board.

JoeBTheKing's picture

   On my current project I am using the Picaxe 28x/40x project board and I don't know where to hook up servos on it.  I searched around on the internet a lot but couldn't find anything about where to hook them up.  Not even the board's manual said.  I don't know if I missed it or what but I can't believe that picaxe would just let you go find this out for yourself.  I even entered the code to center a servo and went around on the board and tried to find were it was.  I also remembered to put a 330 omh resistor on the signal line of the servo.  I

How to hook a actuator up to a servo.?

Im currently building a remote control snow plow, yes it sounds crazy, but very cool. Right now im trying to figure out a way to lift the plow up and down. I have an actuator from an electric wheelchair. my issue is how do i hook it up to the servo so it can be remote opperated! 

Thank you for your help!!

This is the improved version of the Edwardo V2.0 posted by Grimjack1973. We are working in colaboration and had to change the chasis design due to a few flaws. We … Read more