jollifactory @ instructables writes:
Here, we show how a 7 Bi-color 8×8 LED Matrix Scrolling Text Display is built, in which messages and commands can be sent to it via Bluetooth using an Android Smart Phone. Logically, any devices capable of sending text messages via Bluetooth may be adapted to work with the display.
To build this project, basic electronics component soldering skills and some knowledge on using the Arduino or Arduino based micro-controllers are required.
The reason for building a 7 LED Matrices long display is that it is quite adequate for ease of reading scrolling text and also because the largest tinted acrylic sheet easily available in Hobby or Art shops is 18 inches by 12 inches, which is just the right length for making the enclosure for the display as each LED matrix is around 60mm x 60mm in size.
7 Bi-color LED Matrix Scrolling Text Display - [Link]
Small USB development board for Android. Smartphone powered, USB 2.0 communication, direct connection, open sourced API.
It’s an ARM Cortex-M3 development board that connects directly to your Android smart phone micro USB port. It’s powered from the phone so it has enough power for all sorts of applications without extra batteries, and when the device is connected to the phone the appropriate application starts up automatically.
USB2Go – Android Devices Everywhere, Arduino Extendable - [Link]
4,3″ and 7,0″ LCD “Cape” connected to a BeagleBone module can transform this microcomputer to a standalone module with a graphic output.
Microcomputers BeagleBone have earned a global popularity and the community of Linux and Android OS users know them well. Accessories (options) to these modules further enhance and simplify their usage in praxis. To these accessories also belong two new LCD modules form company 4D Systems – 4DCAPE-43T and 4DCAPE-70T. LCD modules are suitable for a newer version – BeagleBone Black (BBB) and they are not suitable for the BeagleBone white.
Connecting these LCD modules we gain a complete computer suitable for control of various devices. Color displays provide a quality picture, well legible even at a relatively strong ambient light. 4DCape-43T, 4DCape-70T as well as BeagleBone Black are our standard stock items. 7,0“ type offers besides a bigger display area also an access to BeagleBone pins thanks to additional connectors on the rear side of the display.
4D Systems displays will give a cape to your BeagleBone - [Link]
Element14/Newark has announced the RIoTboard (Revolutionizing the Internet of Things). It is an open-source, single board development platform to support the development of netbooks , nettops, mobile internet devices, PDAs, portable media players (PMP) with HD video capability, portable navigation devices (PNDs), industrial control and test and measurement (T&M) and single board computers (SBCs). [via]
The RIoTboard specs in brief:
- SoC – Freescale i.MX 6Solo ARM Cortex A9 MPCore Processor @ 1 GHz with Vivante GC880 and GC320 GPUs for 3D & 2D graphics, and HD video processing unit.
- System Memory – 1GB DDR3 RAM
- Storage – 4GB eMMC, microSD and SD card slots
- Video O/P – HDMI, LVDS, and parallel RGB interfaces
- Audio I/O – Analog headphone/microphone, 3.5mm audio jack
- Networking – 10/100/1000M Ethernet
- USB – 1x mini USB 2.0 OTG, 4x USB 2.0 Host, 1x mini USB (OpenSDA)
- Camera – CSI interface with support for CCD and CMOS cameras,
- 1 Gbps MIPI Lane
- Debug – 3-pin UART TTL level, 10-pin JTAG, OpenSDA
- Expansion connector – 40-pin header including 3x UART, 2x I2C, 2x SPI, 3x PWM, 10x GPIOs
- Miscellaneous IOs – 4x LEDs (Power, Open SDA and 2x user-defined), reset button, boot configuration interface
- Power Supply – 5V/4A
- Dimensions – 120 mm x 75 mm
Android & GNU/Linux Development Board - [Link]
The world’s first 100MS/s open source oscilloscope for iPad, Android and PC. A must-have for every Arduino and Raspberry Pi developer!
The SmartScope combines 3 high-end instruments into 1 mobile, smart device. Accessible previously only to high-tech labs, the SmartScope allows everyone to own a personal lab!
Starring a dual-channel 100MS/s oscilloscope, the SmartScope is the world’s first lab instrument which works on both PC, laptop, tablet and smartphone. This is a must-have for any maker, and for anybody involved in hardware development!
SmartScope – 100MS/s Open Source Oscilloscope for mobile devices and PC (Kickstarter) - [Link]
The team describes it as the world’s first starter-kit designed for App Developers to build apps, for the devices and things around them. A “chocolate bar” with detachable bits of different sensors and Bluetooth Low Energy, connected to a mini wifi base, together with easy-to-use SDKs for iOS, Android, node.js, and our simple REST API.
The WunderBar is the easiest way to create useful connected devices. It works out-of-the-wrapper, contains a host of awesome sensors, and is dead-simple to program.
Sensors include: Light, color, distance, temperature, humidity, remote control (IR), accelerometer, and gyroscope. Two additional sensors will be chosen by you.
WunderBar – Internet of Things Starter Kit for App Developers - [Link]
Nix is a breakthrough smartphone accessory. Just scan an object and instantly view the color on your iPhone, Android, PC, or Mac.
Nix is a patent pending device that allows anyone to become a color expert. Just grab Nix from your pocket, purse, or bag, touch it to an object and magically watch the exact color appear on your iPhone, Android, PC, or Mac. Once scanned, you can keep palettes of your favorite colors, match the color to real life pigments, and even receive directions to the nearest store where you can purchase the color.
Nix Color Sensor - [Link]
This is a open source project of RC Car with control from Android Phone via Bluetooth. The controller is used with .NET Micro Framework: FEZ Panda II, but you may use any controller works with .NET Micro Framework core (Netduino, GHI Electronics board’s and other). All source code is available at GitHub.
CxemCAR 1 – Android Control RC Car over Bluetooth - [Link]
TechBitar wrote this Instructable detailing his ANDRUINO, the 2-way Android controller for Arduino via bluetooth:
ANDRUINO is a simple tool to help you control your Arduino (or clone) from your Android phone. It’s both an Android app and an Arduino program. Andruino has a simple Android user interface to 1) control Arduino’s digital and PWM pins 2) send text commands to Arduino 3) and receive data from Arduino over Bluetooth using the ever popular HC-05 Bluetooth over serial module or its siblings.
Andruino should work with other Bluetooth modules with some tweaking but I have only tested it with the HC-05. This is an alpha version that’s running fine on my Samsung Galaxy S2 Plus. Please share your experience running Andruino on your phone.
Andruino: A simple 2-way bluetooth-based Android controller for Arduino - [Link]
Jacob Beningo writes:
Signal generators are a handy thing to have around the lab. They are perfect for testing inputs on a new hardware design and verifying the behavior of a circuit before connecting all the pieces together. In recent years these lab tools have not only decreased in size but also in cost. The result has been a plethora of portable versions that now exist on the market.
For an engineer-on-the-go, this is very convenient but often times having to bring one more piece of equipment always seems to put the tool bag over the 50 pound limit. This is one reason why it is becoming popular to design lab equipment that can be plugged into a smart phone. Rather than carry around another device with a computer in it, utilizing the computing power and capabilities of the phone allows the device to be smaller, cheaper and weigh less!
Turn a smart phone into a signal generator - [Link]