by Annikken @ instructables.com:
This waveform generator is based on the work by Amanda Ghassaei. Waveform generators (or function generators) are used for testing and debugging circuits. e.g. frequency response of op amp or sensors. This waveform generator is powered by Arduino with Annikken Andee shield – a device that lets users create iOS/Android interfaces without iOS or Android programming at all. It outputs sine, triangle, saw and square waves. Frequency is controlled by means of a slider (on iOS/Android device) and wave type is selected using on screen iOS/Android button. With a iOS/Android interface, you can add certain features not possible with hardware buttons. E.g. displaying different ranges of frequencies for each wave type, displaying meaningful controls for certain wave types. For example, the pulse width modulation slider is only visible for square wave types, its not visible for sine, triangle or saw wave forms.
IOS-Controlled Arduino waveform generator - [Link]
Jan_Henrik @ instructables.com writes:
in this Instructable I want to show you, how you can program your Arduino with your Android device. It is very simple and cheap. Also it allows us to program our Arduino where ever we want, this is usefull for permanently installed Arduino boards, like in light controllers…
Program your Arduino with an Android device - [Link]
Smartphone peripheral developers are limited to RF links via Bluetooth, NFC or WiFi when they need to pass data back and forth to the device. This can add significantly to costs and stand-alone peripherals also need batteries or an adapter for power. The Quick-Jack from NXP solves both problems; it turns the standard 3.5 mm stereo audio headphone socket found on most iOS or Android smart devices into a self powered data port and provides an interface for external switches, sensors or any other external equipment.
The Smartphone Quick-Jack Solution comprises a small board, a free example app for popular smartphone OSs, and design documentation.
Smartphone port? Try the Ear Hole - [Link]
Luca Dentella has published his latest project: BlueMatrix. [via]
It’s a portable LED matrix display based on Arduino Uno, powered by a Lipo battery and connected via Bluetooth to a personal computer or an Android smartphone. I’ve also developed the controlling app for Android, available on Google’s PlayStore.
All the schematics, source files, inkscape files for the enclosure etc., are available on my blog and in my GitHub repository.
BlueMatrix – Bluetooth controlled LED matrix - [Link]
pcDuino3 is a high performance, cost effective single board computer. It runs operation systems such as Ubuntu Linux and Android. pcDuino3 has HDMI interface to output its graphic desktop screen. It could support multi-format 1080p 60fps video decoder and 1080p 30fps H.264 and MPEG4 video encoder with its built-in hardware video processing engine. It targets specially the fast growing demands from the open source community. pcDuino3 provides easy-to-use tool chains and is compatible with the popular Arduino ecosystem such as Arduino Shields.
pcDuino3 – High performance, cost effective single board computer - [Link]
ASCAS @ instructables.com writes:
Control your Arduino with voice commands using an Android smartphone! Before we make a voice activated home automation system, we must first learn the basic principles of the experiment. This guide will let you command the Arduino using your Android smartphone and a HC-05 Bluetooth module.
The designer of the app did not include a sample code. I looked for alternatives in Google’s PlayStore but none was as good as the app that I’ve found. Luckily, I was able to figure it out although it took me a while to program it. Sorry IOS users, this app isn’t available in Apple’s app store :/
Voice Activated Arduino (Bluetooth + Android) - [Link]
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]