ARDUINO
Get flash to fully experience Pearltrees
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
/* ——————————————————— * | Arduino Experimentation Kit Example Code | * | CIRC-05 .: 8 More LEDs :. (74HC595 Shift Register) | * ——————————————————— * * We have already controlled 8 LEDs however this does it in a slightly * different manner. Rather than using 8 pins we will use just three * and an additional chip. * * */ //Pin Definitions //The 74HC595 using a protocol called SPI (for more details http://www.arduino.cc/en/Tutorial/ShiftOut) //Which has three pins int data = 2; int clock = 3; int latch = 4; //Used for single LED manipulation int ledState = 0; const int ON = HIGH; const int OFF = LOW; /* * setup() – this function runs once when you turn your Arduino on * We set the three control pins to outputs */ void setup() { pinMode(data, OUTPUT); pinMode(clock, OUTPUT); pinMode(latch, OUTPUT); }
CIRC-05 (74HC595 Shift Register) « .:oomlout:.
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
Relative Humidity Measurement using the Humirel HS1101 Sensor Arduino, BasicX BX24 and PICAXE-18X copyright, Peter H.
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
Using an Arduino + acceleromter to monitor sleep 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.
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
Contenidos: Introducción Cook-Hacker: Santiago Campos Lahoz (España). Ingredientes: 1 x Arduino Uno 1 x LED RGB 1 x NTC de 10 kΩ 3 x resistencias de 1kΩ 1 x resistencia de 3k3Ω 3 x resistencias de 10 kΩ 1 x pila de 9V + conector 1 x microinterruptor Placa de circuito impreso de puntos Un contenedor para el montaje (Ej: una lata metálica) Una pelota de ping-pong Soldador + estaño Cable rígido de interconexión Dificultad: Media-
Cooking Hacks - Let's Cook - Community Hacks - Temperature Cromatic Sensor
REVENDEURS
LCD ARDUINO
[PoBot] Capteur d'humidité résistif
Un capteur d’humidité résistif (ou humidistance) permet d’évaluer l’humidité dans l’air au travers d’un simple dipôle se comportant et se connectant comme une résistance. Pour notre test il s’agit du H25K5A de Sencera : Il coûte un peu moins de 4€ chez Gotronic et c’est un bon moyen de réviser l’acquisition d’une résistance, et comment on peut implémenter une table de correspondance dans un microcontrôleur (look-up table). Datasheet H25K5A Circuit de connexion au µCDate d'initialisation : Mai 2007 État actuel : Terminé Sommaire Description générale
Very nice collection of Arduino links! by jeffwinkler Apr 22