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3
votes
1answer
109 views
Replacing a Wired Controller with an Arduino Uno: Relay Alternative
So, I have a simple robotic arm that has a wire controller you plugin into it. The controller has 8 pins. I haven't played with it too much but I know that the far ends are power sources and the ...
1
vote
0answers
95 views
Raspberry Pi vs Arduino ADK (with phone tethering)
I was doing some research for my capstone project next year. Basically it is an autonomous rover, designed to scout out outdoor areas and send back video/pictures to a website.
So far, our initial ...
-2
votes
0answers
60 views
Which kind of sensors should I use to mimic a reference? [closed]
My project for this summer will be to make a robot arm that does a 1:1 mimic of one of my own arms. I'm at the very beginning stages of design and am conceptualizing what it will be and how I will ...
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 ...
5
votes
1answer
69 views
Powering sub-sytems on a robot with a single battery
I am making a robot for a project, and have a quick question about the power system for my robot. I have to power an AVR MCU (5V), 6 servos (also 5V), 4 dc motors (12V), and a camera (9V). I really ...
0
votes
2answers
166 views
PIC18 Robot - Travelling exact distance straight using two wheel encoders problems
(EDIT: Added TMR0 & TMR1 set-up code)
I have a small robot vehicle controlled by a PIC18f4585. It has two wheels (ball bearing on the front) as well as two rotary encoders. The following ...
-1
votes
3answers
132 views
Information delivery through zigbee
I am doing a project in which i have to measure the voltages of a given terminal and send it to other distant system through zigbee. My work plan is like this: I will use an arduino board and measure ...
13
votes
8answers
713 views
Microcontroller/cpu for fast trigonometry in robot?
This concerns hardware that does weighs little, because a (fat cat sized, 6 legs with 3 DOF) walking robot should carry it around. Because of that walking it'll need to do a lot of trigonometry (using ...
3
votes
2answers
145 views
Communicating via USART with an AVR - Input Buffer?
I am currently building a robot (as some of you may know from my previous questions). The current task I a dealing with is that of communication. To keep things simple, assume I have 5 commands to ...
2
votes
2answers
71 views
Wireless communication with robot
I am making a simple robot, and am using a relatively cheap RF transmitter and receiver to send commands to my robot. Essentially, the transmitter end would send data from an AVR MCU via its UART to ...
0
votes
0answers
92 views
arduino and the rc car [closed]
I am trying to build a chassis for my robot, so I chose the base of a RC car. I took out its receiver board and replaced it with an arduino board to control its motors (steering and rear motors) but ...
-2
votes
1answer
79 views
TI ARM with stacked RAM
Do any of the TI ARM SOCs, e.g. OMAP or Da Vinci, have a version with stacked RAM? (e.g. DDR2 or mDDR) For miniature robots, it would be really nice to not need to spend board area on an external RAM ...
-2
votes
1answer
180 views
How can an experieced programmer get into embedded programming and robotics [duplicate]
Possible Duplicate:
How to become an embedded software developer?
I would like to know what is the best method to begin learning embedded programming and electronic skills? I am already ...
1
vote
1answer
375 views
Selecting a GPS module for a mobile robot [closed]
I need a GPS module to include in my quad-copter for providing GPS based navigation. I found there are many GPS modules available, and there are different kind of information available in their specs. ...
3
votes
2answers
93 views
Inspection/QA Criteria for Selling Electronics?
I'm a software developer who has recently taken up a penchant for home electronics and personal robotics. I'd like to start building a prototype for a small device that I would sell though a website, ...
-1
votes
1answer
216 views
Speaking words with Pololu 3pi Robot [closed]
At each instersection I play different music for the compass direction the robot decided to go. Any ideas how to get the robot to speak the words "West", "East", "South", "North"?
...
1
vote
1answer
249 views
How to calculate the range of a RC transmitter
When searching for a transmitter for a RC application in most of the cases they don't provide anything about the range of the module. Just power and the frequency.
The Tx power must relate to the ...
0
votes
1answer
261 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 ...
3
votes
2answers
238 views
Electronically controlled pneumatic lift, or something similar
Need to be able to firmly lift about 110Lbs (~50Kgs) weight, through a distance of upto 12 inches. The weight can be considered to be a flat & square wooden board, hinged to a flat platform, with ...
0
votes
3answers
138 views
robots communicating with each other [closed]
Is there any possible way of designing robots that can communicate with each other? As in, one of the robot can be programmed to act as a master, while the other robot, situated somewhere else, can be ...
1
vote
2answers
522 views
How do I calculate how long my robot's battery will last?
I am building a robot with multiple types of sensors, 2 motors for locomotion, and 2 motors to control a robotic arm. I am using a variety of color, IR, tilt sensors and such.
How would I factor in ...
4
votes
1answer
541 views
How to use an ESC
I'm new to RC related modules. Today I got my Hobbywing's Skywalker 20A brushless esc.
Manual is here.
I also have a brushless outrunner motor (HL3512)
I ...
4
votes
0answers
655 views
Affordable stereo vision camera for industrial applications? [closed]
I am looking for the best value stereo camera for use in an agricultural vision control application. Since all the vendors do their damnest to hide the cost of their equipment, it's proving to be ...
1
vote
1answer
129 views
Building block components for robot sensors and controllers
I'm planning on building a robot using Microchip PIC 16-bit MCUs, which I'm familiar with, and for which I have supporting hardware (demo boards, programmer, debugger, etc). After spending hours ...
5
votes
1answer
118 views
Indoors-vs-outdoors sensor
What a near-perfect-accuracy yet dirt-cheap way for a drone or other miniature embedded computer to sense whether it's indoors vs outdoors? Some ideas:
Geo position sensor if small, low power, and ...
1
vote
1answer
87 views
navigating every spot of a room [closed]
I want to build a robot that will navigate over every spot it can in a room. But i thought some kind of a laser to map the room would be best or maybe a ultra sonic sensor. Could anyone guide me in a ...
1
vote
2answers
3k views
How to have an Arduino wait until it receives data over serial?
So I've wired up a little robot with a sound shield and some sensors. I'm trying to write a sketch that will let check the sensors.
What I'd like for it to do is print out a little menu over serial, ...
1
vote
0answers
52 views
Looking to source some rotary phone dials [closed]
I recently built a small robot that uses a rotary phone dial to program it in. For example, you dial in 1-1-2-0, the robot goes forwards, goes forwards, then goes reverse. The '0' means execute ...
1
vote
1answer
279 views
How to determine velocity profile for two stepper motor in robot driving
A robot has 2 parallel driving wheel. I don't know the friction of the ground surface. However, I can set the acceleration, starting velocity, ending velocity. The velocity profile has to be ...
1
vote
1answer
84 views
Is it possible to use USB port with a transmitter to control a robot
I have a project in mind that works as a robot accepting input from the computer through a male connector.
I have seen the circuits that use a wire system to connect to the robot. But is there any ...
2
votes
4answers
203 views
What's a fun electronics related gift for 2012? [closed]
My cousin's 19-year old son has a birthday coming up and he is quite intelligent with computers, software and electronics. What's a fun / serious electronics-related gift I could buy him? Anything ...
4
votes
2answers
589 views
How is this motor on a Romotive controlled?
I have bought a Romo Robot by Romotive. Unfortunately I'm having some technical issues(it does not work, at all) with it so I decided to explore the PCB a bit and see what its made of.
I understand ...
-2
votes
1answer
191 views
What the relation between the movement of a motor and the PWM voltage [closed]
I am making a robot that moves in a circle with 2 wheels, each wheel moves using a DC motor with 12V. I want a relation between the circle and the voltage that is produced by PWM.
0
votes
2answers
321 views
Wiring a capacitive touch sensor to the Arduino?
I have just recently bought a few different ic's from Mouser.com, not thinking i never even looked to see if i could use them. I Wound up getting a few Azoteq IQS128 capacitive touch sensors, but I ...
7
votes
13answers
2k views
What can I use to detect pinpoint location (inches) outdoors?
I am getting back in to EE after some time so please excuse my ignorance. I am looking for a way to detect pinpoint location outdoors to navigate a robot for a project with my sons.
Is there a low ...
1
vote
2answers
509 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
3answers
1k views
Is Wifi With Arduino Fast Enough to Control a Vehicle?
I'm building a simple motorized vehicle that I wish to make autonomous through the use of neural networks. I am using Arduino as I am new to electronics but more experienced in programming. I'm sure ...
3
votes
3answers
503 views
tiny RC receiver for bristlebot?
I made a small bristlebot. my version can turn left and right using two vibrators and is controlled by an ATTiny uC. I would like to add remote control functionality so i'm asking what's the simplest ...
2
votes
2answers
2k views
Multiple Ultrasonic Rangefinder Question
I've been doing some research on ultrasonic range finders as sensors for robotics. I've seen them being attached to servos and pivoted to effectively "look" in front of the robot and make sure the ...
1
vote
0answers
51 views
Recommendations for Mobile Robotics Platform [closed]
Can anyone recommend a simple mobile robotics platform for testing vision based sensor processing?
I'm looking for a basic two-wheeled platform, with a monocular webcam, and enough on-board ...
2
votes
3answers
431 views
Motor controller software design
I have to design a PID controller for a differential drive robot.
The hardware board consists of a AVR atmega168 running at 16mhz.
Driven by two 24v scooter motors with 256 CPR encoders
The motors ...
-1
votes
2answers
668 views
Radio triangulation on millimeter scale plausible?
(For this question, let's throw away the skepticism of what's possible or practical today and instead focus on what's plausible in the future. This is all theoretical, but here's the idea:)
We'd like ...
1
vote
1answer
230 views
Distance range of a Color Sensor?
I would like to know what is the usual range of a color sensor ? Can it detect a light source from a few meters away ?
for example, if I want to use a color sensor to detect a particular LED 1 meter ...
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 ...
0
votes
1answer
645 views
how do i drive the h bridge to control a motor?
I am using the ZXMHC3F381N8 MOSFET H-Bridge to drive a motor forwards and backwards. I am using a PIC16F1946. The H bridge is connected to PORTE of the PIC. This is the code I am using to set up the ...
0
votes
2answers
331 views
LiPo 3S 11.1V Power Regulator
I'm currently working on a small hobby robot, where I want to use a FEZ Panda II along with a RX433 to remote control it. My power source is a Turnigy 3000mAh 3S 20C Lipo which gives me 11.1V to work ...
9
votes
2answers
704 views
PID algorithm implementation using computer vision
I am constructing an automatic labyrinth maze solver, and using a webcam to control my maze.
Based on suggestions in other forums, I am trying to control maze's ball movement at least in one ...
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 ...
0
votes
1answer
188 views
What is the most hackable Roomba?
I gotta get a Roomba because the dog hair builds up faster than I can get to vacuum it but I also want to make a beer bot that can go and fetch beer from the kegorator. Seems the Roomba is the perfect ...
0
votes
6answers
2k views
Rotary encoders to ensure 2 wheel robot goes straight!
I have successfully counted the rotary encoders on the wheel of my robot so this is not a problem.
My problem is what to do with this number.
Basically, the bigger problem is that I need my robot to ...
