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]
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]
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]
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]
RK-1 is a wifi enabled mobile robot that you control using your iOS or Android tablet or phone that makes your Arduino projects mobile.
The RK-1 is a fun mobile robot, that uses an ad hoc wifi connection, which is controlled using your iOS or Android device.
The control board on the robot is built on the Arduino hardware/software architecture, which is open source, and the controller software and hardware will also be available open source. The idea is to give the community the ability to make Arduino projects mobile. There is no end to what you can do- you can add sensors and actuators to this fun little device and control it remotely.
RK-1 – a wifi Arduino mobile robot for iOS & Android devices – [Link]
Adafruit has launched their Circuit Playground app for iPhone, iPad and iPod Touch. It provides a collection of reference formulas at the touch of a button, simplifying calculations to make your project more fun – [via]
Decipher resistor & capacitor codes with ease. Calculate power, resistance, current, and voltage with the Ohm’s Law & Power Calc modules. Quickly convert between decimal, hexadecimal, binary or even ASCII characters. Calculate values for multiple resistors or capacitors in series & parallel configurations. Store, search, and view PDF datasheets. Access exclusive sneak peaks, deals & discounts at Adafruit Industries. All that, plus updates with additional features & enhancements – MANY NEW CALCULATORS AND TOOLS being added!
Adafruit launches Circuit Playground app – [Link]
With the new device Lantronix xPrintServer you can print documents on your network printer from any Apple iOS mobile device.
Imagine, in your company you have a visit with some Apple mobile device like iPod, iPhone or iPod touch and your visitor from any reason needs to print some document. A problem is, that with a probability near to surety, in a given mobile device no drivers for your printer will be installed.
This problem is elegantly solved by a new device from company Lantronix – xPrintServer. It is a literally „plug´n´play“ or „plug´n´print“ network device. xPrintServer serves as an „interface“ between a mobile device and a printer. Apple iOS device communicates with a network through your company´s WiFi and the xPrintServer sends data to a network printer through an ethernet cable.
In comparison to other common net devices, a configuration is unbelievably simple. Connect the xPrintServer into your LAN through an ethernet cable (to a router, switch, hub or any place in the network), power up the xPrintServer, and the xPrintServer will auto-discover and auto-provision all printers in the network. No other configuration is necessary, no applications or any other software. All that is necessary to do to print is to sign into you company´s WiFi with a mobile device, open a desired web page, e-mail, photo etc. and choose the icon to open the native print menu. Then from the printer options menu, choose a printer through which you wish to print. Finally, select a number of copies and choose „Print“.
Advantages / Features:
- network device enabling a problemless printing from any Apple iOS device
- supports all devices with Apple iOS 4.2 or higher
- no drivers or special SW necessary
- printing from the native print menu of a mobile device
- extremely simple installation – „plug´n´print“
- automatically searches all available network printers, no configuration
- a big amount of supported printers
Print simply and without drivers from Apple iOS devices – [Link]
Pittsford, NY, USA: Saelig Company, Inc. has introduced WiPry-Combo – the worldʼs first dynamic power meter and spectrum analyzer accessory for the iPad, iPod Touch, and iPhone – offering a modern touch interface not available on PC-based instruments. WiPry-Combo turns an iOS device into an ultraportable spectrum analyzer and dynamic power meter. WiPry-Combo brings RF power measurements to a graphical interface to show RF waveforms like an oscilloscope – instead of showing voltage, RF amplitude is displayed on an iOS portable device. Actual power output can be triggered, captured, and recorded for protocol verification or for troubleshooting wireless devices. Data is collected at up to 12 MSa/s, allowing analysis and verification of the smallest protocol level on/off times. WiPry-Combo offers data logging in csv format, while screenshot results can be instantly emailed via the iOS host phone.
In its Spectrum Analyzer mode, WiPry-Combo offers a practical solution for identifying interference or open channels in the 2.4GHz ISM band, or for identifying unauthorized WiFi access points. Operating in the frequency range: 2.400 to 2.495 GHz, it measures signals from -40dBm to +20dBm with an amplitude resolution of 2.0dBm and a bandwidth resolution of 1MHz. The band sweep time is 200ms. Read the rest of this entry »
Mike Colagrosso created Avviso, a Processing and Arduino library for sending push alerts to iOS devices using the Prowl API. This would make projects such as Snail Mail Push Alerts a much easier task because a PHP web server is not needed in the set up. The libraries, example code, and set up guide are available on Github.
This is a cool project with comprehensive explanations helpful for newbies. [via]
Avviso library for Arduino and Processing sends iOS push alerts – [Link]