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Archive for the ‘motor’ Category

Lug
08

The world knows what you did last summer

arduino, bluetooth, Featured, installation, mega, motor Commenti disabilitati su The world knows what you did last summer 

i know what you did last summer
Jaap de Maat shared with us his final year project called I know what you did last summer, the finale to a two-year-long MA in Information Experience Design of the Royal College of Art. The ingredients are  simple (an old electric wheel chair, an Arduino Mega, 12v motor board, Bluetooth slave, wires, blood sweat and tears) and the concept is very actual:

It is physically impossible for the human brain to remember every event from our past in full detail. The default setting is to forget and our memories are constructed based on our current values. In the digital age it has become easier to look back with great accuracy. But this development contains hidden dangers, as those stored recollections can easily be misinterpreted and manipulated. That sobering thought should rule our online behaviour, because the traces we leave behind now will follow us around for ever.

inside of the installation

The video of the installation shows how the physical presence of an archive drawer  stalking has a real impact on visitors:

Here’s the making of the prototype:

Giu
18

Arduino Controlled CNC / 3D Printer

3d, arduino, CNC, instructable, motor, printer Commenti disabilitati su Arduino Controlled CNC / 3D Printer 

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aldricnegrier @ instructables.com writes:

The objective of this instructable is to guide your way throw the entire making process of building a BuildersBot machine. An Arduino controlled CNC Router that can also perform 3D printing.

The instructions will cover all areas such as, mechanics, electronics and software.

Arduino Controlled CNC / 3D Printer - [Link]

Giu
10

PWM motor speed control using Arduino

arduino, motor, PWM Commenti disabilitati su PWM motor speed control using Arduino 

motor-speed-control-arduino

praveen @ circuitstoday.com writes:

PWM or pulse width modulation is a very common method used for controlling the power across devices like motor, light etc. In PWM method the power across the load is controlled by varying the duty cycle of the drive signal. More the duty cycle more power is delivered across the load and less the duty cycle, less power is delivered across the load. A hex keypad is used for controlling the speed. The speed can be varied in seven steps using the hex keypad. Arduino UNO is the type os arduino development board used in this circuit. The circuit diagram of the PWM motor speed control using arduino is shown in the figure below.

PWM motor speed control using Arduino - [Link]

Apr
26

Arduino Thermostat (Mechanical)

arduino, motor, temperature, thermostat Commenti disabilitati su Arduino Thermostat (Mechanical) 

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Mizchief100 @ instructables.com wanted a way to control with dorm air conditioner so he build an Arduino thermostat that controls the control knob using a servo motor:

I am currently living in a college dorm. Like most dorms it’s about the size of a tissue box but less comforting. Fortunately, my room has a heater/AC with four positions: low, medium, high, and off. Unfortunately in winter an hour on the low setting makes the room a stifling 80 degrees and when turned off it drops quickly to 60 degrees. My solution uses an arduino, temperature sensor, and motor to automatically turn the heater on/off to keep the room within a desired temperature range. Not only is this more comfortable but it dramatically reduces the time the heater is used, saving lots of energy. (Also note that the motor is only driven to switch the setting and then turned off so no holding energy is wasted.)

Arduino Thermostat (Mechanical) - [Link]

Apr
23

PWM Control using Arduino – Learn to Control DC Motor Speed and LED Brightness

arduino, LED, motor, PWM Commenti disabilitati su PWM Control using Arduino – Learn to Control DC Motor Speed and LED Brightness 

led-brightness-pwm-controll-arduino

praveen @ circuitstoday.com writes:

In this article we explain how to do PWM (Pulse Width Modulation) control using arduino. If you are new to electronics, we have a detailed article explaining pulse width modulation. We have explained PWM in this tutorial using 2 examples which will help you learn how to control LED brightness using PWM and how to control DC motor speed using PWM.

PWM Control using Arduino – Learn to Control DC Motor Speed and LED Brightness - [Link]

Apr
03

Arduino Controlled Dahlander Motor Switch

arduino, arduino hacks, dahlander, DIN rail, high voltage, motor, three-phase, tool hacks Commenti disabilitati su Arduino Controlled Dahlander Motor Switch 

 

Dahlander Switch

[Jean-Noel] is fixing a broken Lurem woodworking machine. This machine uses a three-phase Dahlander motor, which has three operation modes: stop, half speed, and full speed. The motor uses a special mechanical switch to select the operating mode. Unfortunately, the mechanical bits inside the switch were broken, and the motor couldn’t be turned on.

To solve the problem without sourcing a new switch, [Jean-Noel] built his own Arduino based Dahlander switch. This consists of three relays that select the wiring configuration for each speed mode. There’s also a button to toggle settings, and two lamps to show what mode the motor is currently in.

The Arduino runs a finite-state machine (FSM), ensuring that the device transitions through the modes in the correct order. This is quite important, since the motor could be damaged if certain restrictions aren’t followed. The state machine graph was generated using Fizzim, a free tool that generates not only FSM graphs, but also Verilog and VHDL code for the machines.

The final product is housed in a DIN rail case, which allows it to be securely mounted along with the rest of the wiring. The detailed write-up on this project explains all the details of the motor, and the challenges of building this replacement switch.


Filed under: Arduino Hacks, tool hacks
Nov
22

Building a self balancing bot

Accelerometer, arduino, ATmega, ATmega328, Bajduino, IMU, motor, MPU6050 Commenti disabilitati su Building a self balancing bot 

self-balancing-bot-1-600x400

Bajdi documented his Arduino self balancing bot build:

For the electronics I used one of my own PCB creations, a Bajduino of course It’s just a small (50x50mm) break out board for an ATmega328. I’m running the ATmega @ 16MHz and 3.3V. It’s out of spec according to the datasheet but it works… I also needed an IMU of course. I found a MP6050 sensor in my parts box. The MPU6050 combines a 3 DOF gyro and 3 DOF accelerometer in a small package, ideal for a self balancing bot.

[via]

Building a self balancing bot - [Link]

Ott
09

Moti on Kickstarter: spin the dials and the motors follow!

kickstarter, motor, Robot, servo motor, servos Commenti disabilitati su Moti on Kickstarter: spin the dials and the motors follow! 

moti on kickstarted

Moti is a smart motor you can control from an app . It allows to use your fingers directly on the screen to move the motor, adjust speed with sliders and even program motions with simple building blocks. You can attach it to any kind of objects and bring them to life with intuitive and easily understandable steps.

At the same time Moti is advanced enough to satisfy makers and developers who are looking to build complex robots. Each one is programmable with Arduino, has bunch of built-in sensors, daisy-chains, and even has a web-API so you can develop sites and games for your robot.

Nick wrote us:

Our aim with Moti is to make robotics accessible to everyone by providing a
tool that’s as intuitive to use as a hammer. Simply attach Moti smart motors to anything and then use the graphical app to bring your creation to life…spin the dials and the motors follow. Presto, instant robot!

Moti was born out of our frustrations in building robots.  We’ve just done a lot of the grunt work so you don’t have to.

At present, a lot of low level work is required to get a robot moving, and that prevents most people from exploring beyond the basics, if at all. Moti simplifies robotics so more people can apply it to interests such as amateur filmmaking, animatronics, window displays, art projects, 3D printed robots, DIY toys, RC vehicles, home automation and much more.

In the 80′s computing shifted from labs and industry into everyday life. We think robotics is ready for a similar shift, and Moti is here to help that happen.

They are on Kickstarter now! See how it works:

 

Set
22

Talkbot: an Arduino-driven robot for beginners

arduino hacks, bump sensor, digital audio hacks, how-to, motor, motor controller, robots hacks, School, voice Commenti disabilitati su Talkbot: an Arduino-driven robot for beginners 

talkbotguts

It isn’t exactly WALL-E, but [Bithead's] affordable introduction to robots – Talkbot – is made out of a trash can. This little guy runs off an Arduino and comes packed with features, including a voice chip, a motor shield, and a pair of bump sensors. Talkbot will cruise around until a bump sensor slams into an obstacle. One of his prerecorded messages will then play through the speaker while he backs up, turns, and tries to find a clearer path.

According to [Bithead's] build log, tracking down the right bargain voice chip was a bit of a hassle; he skipped over the text-to-speech options only to be stalled by vendor issues. He finally settled on a clone of Sparkfun’s WTV020SD chip sourced from eBay, which allows you to access pre-recorded WAV files stored on a Micro-SD card. The robot’s body comes straight off the hardware store shelf, with PVC pipe for arms and a polystyrene base to hold all the parts.  At the bargain price of $110, [Bithead's] students will have a true hacker experience cobbling the Talkbot together rather than using a prefab kit.

Be sure to see Talkbot  in a video below, performing either his green-eyed “friendly mode” or red-eyed “grumpy mode,” which dictates how pleasantly he responds to obstacles. Need something more advanced? Check out the tentacle robot, just in time for Halloween.


Filed under: Arduino Hacks, digital audio hacks, how-to, robots hacks
Set
09

An etch-a-sketch on dope

arduino, etch-a-sketch, inspiration, motor, shield Commenti disabilitati su An etch-a-sketch on dope 

Magnetography

Arduino Facebook  page is a great source of inspiration  with plenty of people posting everyday about projects and experiments. Some days ago a user shared this interesting video about Magnetography, an alternative drawing toy using ferrofluid, a liquid which becomes strongly magnetized in the presence of a magnetic field.

Magnetography, by Christian Robach, is built out of old DC-Motors, a frame filled with water and ferrofluids.  The “pen” can be controlled by using the W-A-S-D letters on the keyboard allowing the users to play with the liquid metal without getting their hands dirty.
The commands are sent to the serial Port via Processing then Arduino UNO, with an Adafruit Motor Shield extension, reacts by powering the motors and moving the magnet according to the coordinates. Enjoy the video below:



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