A Wireless XBee Pan/Tilt Servo System For Cameras. It uses a pair of XBee modules to build a simple wireless interface which will be used with PIC 18LF4520′s to control a servo based pan and tilt system which can move my camera 45 degrees in any direction, left-right-forward-backwards.
Wireless XBee Pan/Tilt System - [Link]
Chris @ PyroElectro.com writes:
Searching for a reliable wireless solution for your project can be a real pain if you’re not familiar with current wireless standards, data rates and reliability. The Xbee Modules that we will use in this article are widely available, use a very reliable wireless transmission protocol and have sufficient datarates for most hobby projects.
This article will show you how to build a basic wireless input and output system in the form of a single transmitter and single receiver. Communication will be one way to keep things simple with two xbee modules being used for the wireless link. In the end, a small trimpot will control the movement of a servo motor.
Xbee Wireless Servo Control - [Link]
Mice first broke onto the public stage with the introduction of the Apple Macintosh in 1984, and since then they have helped to completely redefine the way we use computers.
The mouse is an extremely popular device. While the majority of mice are connected directly to the computers peripheral input via a cord and the computer’s main power powers it, wireless mice are becoming extremely popular as they give computer users cordless accessibility to their mice and their computer. Wireless Mouse – Get insight
Wireless Mouse – Get insight - [Link]
Texas Instruments has introduced the bq500210 IC, , which is designed to control and transfer wireless power for contactless chargers compliant with the Qi standard from the Wireless Power Consortium. The bq500210 is a second generation wireless power dedicated digital controller that integrates the logic functions required to control wireless power transfer in a single channel WPC compliant contactless charging base station.
The bq500210 is an intelligent device that periodically pings the surrounding environment for available devices to be powered, monitors all communication from the device being wirelessly powered, and adjusts power applied to the transmitter coil according to feedback received from the powered device. The bq500210 also manages the fault conditions associated with power transfer and controls the operating mode status indicator. The bq500210 additionally supports improved detection of parasitic metal objects. [via]
TI launches second-generation wireless charger controller - [Link]
RF networking is getting huge these days. With new RF nodes being developed on what seems like a monthly schedule. This means new and established companies are getting in the game. I’m pretty sure that everybody knows of Digi international (manufacturers of Xbee RF nodes) and regard them to be the current King of RF networking, BUT with ninja-like progress companies like Synapse Wireless have snuck up on them and started offering superior products. Syanpse nodes have the ability to wirelessly program Arduino UNOs at distances of >250ft without hardware mods or painful configuration processes. The nodes are both a network module and user-programmable microcontroller in one and on top of that they have to ability to do self-healing mesh networking. Their specs seem to outdo xbees on many levels, which begs the question, Synapse Wireless where have you been all my life???
There’s a New SheRifF in Town and Their Name is Synapse Wireless - [Link]
The SmartPulse™ family of DECT-based wireless sensors and base station devices from Dialog Semiconductor facilitate the creation of wireless sensor networks for home automation, security, health care and energy monitoring applications. DECT is an established technology that provides whole-house coverage, and SmartPulse with DECT ULE builds on this legacy. Its simple star networks can be used for a variety of home automation applications.
Systems running SmartPulse sensors can self-configure with a home’s DECT / DECT ULE hub or internet gateway, allowing connected systems to be managed over the web using a smartphone, laptop or tablet PC. Additionally, the sleep mode of DECT ULE enables a wide range of new wireless consumer products that run for up to 10 years on a single AAA battery pack. [via]
Wireless home automation devices build on DECT technology - [Link]
Meridith Perry, a recent graduate of the University of Pennsylvania (USA), has developed a novel method for powering electronic devices wirelessly. Christened ‘uBeam’, the method uses ultrasonic energy that is beamed from a mains-powered transmitter to a piezoelectric receiver plugged into the device to be powered.
Ms Perry came up with the idea for the uBeam system while still at university, when she forgot to take the charger for her laptop computer to a lecture and was left with a dead battery. She started thinking about ways to transmit energy wirelessly and ultimately came up with the idea of ultrasonic transmission. [via]
Novel ultrasound system provides wireless power - [Link]
One of the earliest methods of wireless transmission used was with infrared light. Using wireless IR links has many advantages with the primary two being low cost and low part count to implement. The simplest of on/off switches using wireless IR would take no more than 10 parts, but this tutorial will be going to send asynchronous serial data over a wireless IR link.
This tutorial will create a wireless infrared transmitter using an IR LED and a wireless IR receiver using a phototransistor. Asynchronous serial will be transmit over this link at 9600 BPS. The PIC 18F452 will be used to transmit and receiver this data.
Wireless Infrared Link - [Link]
Kaysville, Utah – July 06, 2011 – Monnit Corporation (www.monnit.com) today announced the immediate release of seven new low cost wireless sensors designed for commercial, industrial and consumer applications. The new sensors complement Monnit’s existing line of low-cost wireless sensors to now total nineteen different types of sensors for broad applications. The new wireless sensors include the following:
- WIT™ Wireless Infrared Motion Sensor can be used to detect motion or movement using infrared technology.
- WIT™ Wireless Flex Sensor measures the amount of flex or bend applied to a flexible ribbon.
- WIT™ Wireless LUX Sensor measures the intensity of light present and returns a LUX value for the amount of light present.
- WIT™ Wireless High Accuracy Humidity Sensor detects and measures relative humidity, temperature and dew point with a +/- 2% accuracy between 10% – 90% humidity.
- WIT™ Wireless 0-20mA Current Sensor provides a wireless interface for 0-20mA sensors.
- WIT™ Wireless Analog Voltage Sensor provides a wireless interface for measuring the voltage from other devices.
- WIT™ Wireless Liquid Level Sensor detects the level of a liquid in a container by its position on a liquid sensitive ribbon.
Also, Monnit has released a much anticipated addition to their gateway product line.
- MonnitLink Ethernet Gateway allows Monnit WIT Wireless Sensors to communicate with Monnit’s online sensor monitoring and alerting system without the need for a computer.
Monnit Releases an Additional Seven New Wireless Sensors - [Link]
One frustrating moment in do-it-yourself electronics is when you hit the limit of using ‘wired’ electronics and need to go to wireless. Wireless electronics are frustrating because typically unless you are very knowledgeable you cannot easily build them yourself. This means you either need to study until your eyes bleed or you have to use pre-made modules.
This tutorial will explore how to add and use common remote control car transmitter and receiver pairs in your microcontroller projects. Specifically the received protocol will be translated into information the pic can use to create some output from the remote control’s input.
Quick and Easy Wireless system - [Link]