ARDUINO
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One of the cool features of the Arduino platform is its ability to talk to other electronic devices using standard protocols. The big draw of physical computing, in my opinion, is the power it gives you to affect a limitless range of real-world objects with your PC, rather than just boring old monitors and printers. This short tutorial will demonstrate one way to use Arduino to control a servo motor with a PC, using a USB cable and the Arduino’s serial library. It will in no way attempt to be an introduction to asynchronous serial communication, since such topics are better addressed elsewhere . RC servos are comprised of a DC motor mechanically linked to a potentiometer. Pulse-width modulation (PWM) signals sent to the servo are translated into position commands by electronics inside the servo.
Arduino Serial Servo Control | Principia Labs
OK, so say you have this crazy cool idea where you need to control a ton of LED s (I know, I know… LEDs). You looked at the multiplexer article , and that was great, but this idea is so cool, you need individual control of each LED, and turning them on one at a time just won’t do. Well again, we are here to help, and now it’s time to introduce you to the Shift Register . Not just any shift register , the super cheap, incredibly awesome 74HC595 8-bit Shift Register!
Can you move over? The 74HC595 8 bit shift register
Example S1D13700 Graphic LCD Breadboard Set-up This is some example code written specifically for the Powertip PG320240WRF-HE9 320×240 Graphic LCD but it should work with any S1D13700. Much of the code is based upon work by Radosław Kwiecień originally found at http://en.radzio.dxp.pl/sed1335/ . Each zip file contains a schematic demonstrating how to connect it to the microcontroller. The Arduino zip file contains the Arduino compatible library, an example sketch, and documentation. You can also view the online version of the documentation Here .
S1D13700 Library, Schematic, and Example Code | CafeLogic
This article focuses on how to use the existing USB code library and HID report descriptor info to implement joystick functionality. Human readable HID report descriptor and report information can be easily obtained using USBHID_desc.pde sketch – see previous article for details. This information will help you getting field details such as size and count info. Also, if you don’t have Arduino Mega or 2560 to run USBHID_desc , report descriptor for your device can be obtained using one of many PC tools known as USB analyzers, or even the official usb.org device verification tool . This article is written by Alex Glushchenko – a developer behind second revision of USB Host Library as well as majority of device support code. As you may already know report is a data structure used by HID device to return the information about the certain device parameters such as joystick coordinates or button events, or receive new settings such as switching on/off LEDs on keyboard.
Circuits@Home
Arduino
I've been working on this on and off for a while now. Ever since I got Maya talking with the Arduino. I thought to myself, "wouldn't it be nice if there was a free app that wasn't bloated and designed just for animating parameters?" Well, I just hit my first milestone for this goal. Eventually I would like to add multi-segment Bezier Curves.rh_count
This discussion focuses on a relatively simple technique for measuring relative humidity using a sensor. This sensor consists of a capacitor which varies with relative humidity and is used in a 555 circuit to generate a pulse train of frequency related to relative humidity. The number of pulses over a one second period are counted and the RH is then calculated.
Brancher le fil d’alimentation du moteur et le pin V2 (Motor Supply) à une alimentation 12V. Le Ground de cette alimentation ira avec les autres Ground.
Contrôler un moteur pas à pas avec Arduino Mega et un L293 » Samuel Goutenoir
What started out as a simple way to open my garage door from my iPhone turned into what you see here. As of this writing it can be used to open/close the garage door, check the status of the garage door, arm/disarm my security system, and send email alerts. The heart of this system is (obviously) an Arduino, but no ethernet shield was used.
Arduino Home Control
Arduino — CMD-c && CMD-v
June 20th, 2010 — Arduino , C , Code , Hardware , Python , Software I have heard that a trip to a sleep doctor entails hooking up a bunch of sensors to you and they tell you things like how many times you woke up in the night. I don’t have a bunch of sweet EEG nodes, but I realized that I could easily create something that measures my relative movement throughout the night.
Hobby Robotics » Cheap Arduino Wireless Communications
I was looking for a way to handle wireless communications between two Arduino boards. Other options like Xbee or Bluetooth were going to cost $50 to over $100. Then I found a cheap RF transmitter and receiver at Sparkfun. The total cost is only $9! Here are a few limitations to RF solution:I spend a fair amount of time zipping around town on my scooter, and thought it would be cool to add a voltage monitor to warn when the battery might need recharging. Waiting until the electric starter no longer works is somehow lacking. So after an evening with an Arduino Duemilanove, I had a simple programmable voltage divider with 3 LEDs indicating battery low, good, and charging. Done. That's when I saw Liquidware's very cool TouchShield Slide OLED display with touch screen.
Scooterputer
arduino hacks - Hack a Day
We see a lot of LED matrix projects. They’re fun, and you can learn a lot of basic lessons during the build. But this one is out of the ordinary.Santiago Campos nos muestra en este hack, cómo construir un sensor cromático de temperatura mediante un Arduino , el cuál controla el cambio de color de un LED RGB dentro de una pelota de ping-pong; indicándonos así la temperatura dentro de la habitación en la que nos encontremos. En una plaquita de circuito impreso soldamos el puente de resistencias en el que está alojada la resistencia NTC, y lo conectamos a la entrada 5, según el esquema, a la placa Arduino. En otro trocito de placa de circuito impreso soldamos las tres resistencias de 1k y el LED RGB, el cual se conecta a las salidas 9, 10 y 11 de la placa Arduino. Alimentamos la placa Arduino con la pila de 9V y, opcionalmente, utilizamos un microinterruptor para conectar y desconectar el dispositivo. El contenedor de los circuitos y de la pila (una lata, una caja, etc), se perfora para poder colocar el LED que se iluminará en función de la temperatura ambiental siguiendo el patrón del código adjunto.
Cooking Hacks - Let's Cook - Community Hacks - Temperature Cromatic Sensor
REVENDEURS
LCD ARDUINO
Very nice collection of Arduino links! by jeffwinkler Apr 22