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$19 RFDuino Article RFDuino is a tiny board, about the size of a coin, powered by Nordic nRF51822 Cortex M0 SoC including bluetooth 4.0 LE support, and software compatible with Arduino UNO and DUE board, so you can just use Arduino sketches with the board. Bluetooth allows it to communicate with your smartphone (iPhone for now, but Android support is coming) to control motors & relays, monitor sensors, turn LEDs on/off, and more. RFDuino (Left) & RFDuino with 2 shields connected to a breadboard Key features of RFDuino board: Homemade GPS Receiver Pictured above is the front-end, first mixer and IF amplifier of an experimental GPS receiver. The leftmost SMA is connected to a commercial antenna with integral LNA and SAW filter. A synthesized first local oscillator drives the bottom SMA. Pin headers to the right are power input and IF output. The latter is connected to a Xilinx FPGA which not only performs DSP, but also hosts a fractional-N frequency synthesizer.

Meet the maker – Afroditi experiments with embroidery, soft circuits and diy electronics The work of Afroditi Psarra includes experimentation with embroidery, soft circuit and diy electronics. I got in touch with her after discovering she was holding a workshop in Barcelona around sound performances using Lilypad Arduino along with a really cool embroidered synthesizer (…and also submitting her project to Maker Faire Rome !). Even if her background is in fine arts, as a little girl she got interested in creative ways of expression: on one side she was lucky enough to have all sorts of after-school activities that included painting, theater games and learning but also how to program using LOGO and QBasic. That was in the days of black-and-white terminals and MS-DOS commands: I still remember the excitement of not knowing what to expect at the opposite side of the screen. So for me, technology has always been a major part of my life.

DIY Arduino Beacons as an alternative to iBeacons Apple created a lot of interest in the IoT scene with the introduction of iBeacons. However, Apple placed restrictions such that generic BLE devices could not be used as iBeacons. In this tutorial we will show you how to have a fun time making a mobile app and create a custom implementation similar to iBeacons – based on the Arduino micro controller using standard BLE hardware. In this tutorial, we will create a mobile app for Android and iOS, that uses an Arduino compatible board with a BLE shield to create a beacon.

Estremi Rimedi... Ever since I started making projects with the Arduino, I’ve had a desire to shrink them down to a single, small circuit board. One of my first projects, a customizable SLR intervalometer, was packed in a phonebook-sized cardboard box and used the Arduino Deumilanove connected to a breadboard with jumper wires. I brought the box out to Central Park at 5am to make a timelapse of the sunrise, but when I got to the park, I spent 20 minutes fixing the connections between the Arduino, the breadboard, and the components. Dream. Design. Do. » Blog Archive » Reversing an RGB LED remote I have this dream to someday light our basement with RGB LEDs. They often come with remotes and controllers, which are surprisingly inexpensive. The problem with the remotes you get for cheap on ebay is that you *have* to use the remote to change the lights, and that of course limits you to the buttons on the remote. I’d like to make an in-wall dimmer/color changer for LED mood lighting, but with the added feature of being compatible with the existing cheap LED remotes on the market. That means reverse-engineering one. And here it is:

Setting up with Arduino IDE Chances are, you picked up a Trinket because it is programmable with the Arduino IDE. Note that the Trinket is not a full Arduino-compatible, it uses a different (smaller) chip than the Uno, Mega, Leonardo or Due. However, there are many small sketches and libraries that will work just fine. Some may not even need anything other than pin number changes.

MacOSX This document explains how to connect your Arduino board to the computer and upload your first sketch. 1 | Get an Arduino board and USB cable In this tutorial, we assume you're using an Arduino Uno, Arduino Duemilanove, Nano, Arduino Mega 2560 , or Diecimila. If you have another board, read the corresponding page in this getting started guide. You also need a standard USB cable (A plug to B plug): the kind you would connect to a USB printer, for example.

Microduino Article Home > Atmel AVR, Hardware > Microduino Is a Tiny Arduino Compatible Board with Stackable Shields Microduino is a small board based on Atmel AVR or ATMega MCU which is software compatible with Arduino boards. The core board features the Atmel MCU, and Microduino shields can be stacked on the core board to add functionalities. There are actually 2 core boards: Microduino core and Microduino core+ with more performance. They share the following specifications: SB-Projects: IR Remote Control, NEC Protocol NEC Protocol To my knowledge the protocol I describe here was developed by NEC (Now Renesas). I've seen very similar protocol descriptions on the internet, and there the protocol is called Japanese Format.

Olimex Announces Leonardo Compatible Board Last month, I wrote about Microduino, a tiny Arduino compatible board about the size of a coin. Olimex has also being working on their own tiny version of the Arduino board, OLIMEXINO-NANO, slightly larger than Microduino (30x30mm vs 25.4×27.94mm) but also featuring the UEXT connector which is an advantage if your own or plan to use UEXT expansion boards, but it could be an inconvenience if you don’t, as the connector is a little bulky. Here are the specs of the board: MCU – Atmel ATMega32U4 processor (Leonardo compatible) with 2.5KB RAM, 32KB flash memory, and 1KB EEPROM.Storage (external) – microSD card connector for data logging on SD-cardUSB – micro USB connector for programming and power supply when debuggingMisc – RESET button, USER button, 2x status LEDsExpansion Connectors: UEXT connector for RF, Zigbee, Ethernet, RELAY, RGB LED, etc UEXT modulesConnector 14 pin 0.05″Connector 20 pin 0.05″

16-Channel 12-bit PWM/Servo Shield - I2C interface ID: 1411 - $17.50 You want to make a cool Arduino robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that the Arduino has only a few PWM outputs, and maybe those outputs are conflicting with another shield! What now? You could give up OR you could just get our handy PWM and Servo driver shield. Augmented Instruments Laboratory, C4DM - Outreach Electronic musical instruments are a great way to introduce principles of engineering and computer science to a pre-university audience. The Arduinitar was jointly developed by Andrew McPherson and Ho Huen (QMUL electronics lab manager) with support from CS4FN (Computer Science for Fun). It is a build-it-yourself electronic guitar based on the Arduino microcontroller platform. It has been used in activities around the UK using music to teach electronic circuits and programming.

EMF Detector - Aaron ALAI // Aaron ALAI EMF Detector April 22nd 2009 VERSION 1.0// *future note, put in averaging function to average val which should result in a more// smooth response from the led. I will give you a hint on how to make an averaging function;// it involves the use of an array int inPin = 5; // analog 5 int val = 0; // where to store info from analog 5int pin11 = 11; // output of red led

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