Have you ever wanted to send data from a sensor or project wirelessly? This simple circuit allows you to build your own wireless transceiver using two ICs, a transistor, and two resistors. The IC is from Melexis and uses On-Off Keying modulation and can be battery powered.
Here is the circuit.
DIY Wireless Data Transceiver - [Link]
This project measures the background radiation outside the house, and transmits it to a display station inside the house. The outside sensing unit is solar powered (but it doesn’t have to be), and should have a range of at least 50m. The display station inside the house continuously displays the current background, and logs it to an SD card (along with date / time, temperature and other data). Daily high counts and other information are also displayed.
Wireless Monitoring Geiger Station - [Link]
element14 has teamed up with top suppliers, including Texas Instruments, Wurth Elektroniks and Cadsoft, to launch a new wireless power microsite. Designed to accelerate the integration of wireless power solutions in popular applications, such as smart phones, digital cameras and more, the site gives engineers access to a wide range of technical experts, complimentary webinars, product roadtests, and safety and compliance standards.
Engineers are invited to learn more by registering for a free webinar – “Charging Innovation – Cut the Cord” – on Thursday, Sept. 20 at 3 p.m. GMT/9 a.m. CDT. Attendees will see a demo of the new microsite, an overview of wireless power reference designs, and an opportunity to have questions answered during a live Q&A session following the webinar.
Wireless power integration made easy with TI’s bqTESLA evaluation modules - [Link]
Irdroid v2.0 is advanced version of the Irdroid remote control hardware. The unit is standalone, powered by 12V DC adapter and it has a bluetooth communication module. The unit features a infra-red remote control for android and a Bluetooth Music receiver in one. The module can be used simultaneously to control home TV/AV equipment and to turn any speaker into a wireless bluetooth speakers.
Irdroid v2.0 – universal remote for Android - [Link]
Project is about a method to measure level of liquid using pressure sensors. Though not a new idea, the design has been done with following features in mind, Scalability, Cost, Feature Set
Non Contact Wireless Liquid Level Gauge - [Link]
panStamp is an open source project created for the enthusiasts that love measuring and controlling things wirelessly. panStamps are small wireless boards specially designed to fit in low-power applications, simple to program and simple to work with. With panStamps, you can measure almost everything by simply connecting your panStamp to the sensors, placing a battery and sending wireless data from the first moment.
panStamps are suitable for any kind of project needing remote control and low-power wireless transmissions, including home automation, energy metering, weather monitoring and robot control. If you are one of these three things: a hobbyist, a professional or an end-user, you will find that panStamps provide extreme flexibility and power when creating custom wireless networks.
Low-power Arduino based wireless solution - [Link]
IRVINE, CA — June 19, 2012 — Open Source RF, a new venture dedicated to serving Arduino users by making high-quality, creative products for the Maker, DIY and Open Source communities, today announced it is releasing a plug and play wireless Shield for Arduino.
The Wireless Inventors Shield makes any Arduino project wireless instantly even in high-traffic areas. Using a reliable wireless RF module, the Shield allows users to easily send and receive error-free data between two or more Arduino boards.
Arduino is an open source electronics prototyping platform based on flexible, easy-to-use hardware and software. It is intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments.
The Wireless Inventors Shield has been tested at ranges in excess of 500 feet (150 meters); it is plug and play and error free, featuring built-in forward error correction and data recovery so users receive only cleaned and cyclic redundancy checked (CRC) verified data; and it is simple to use in that inputted data is wirelessly transmitted then cleanly received on the opposite end. Read the rest of this entry »
Chicago Ill. – June 06, 2012 – Monnit Corporation (www.monnit.com) of Kaysville, Utah, announced today at Sensors Expo in Chicago the availability of wireless sensor hardware in both 868 MHz and 433 MHz ISM radio frequency bands. These radio frequencies are available in addition to the standard 900 MHz wireless sensor hardware released by Monnit in 2010. The availability of these additional radio frequencies ensures that Monnit wireless sensors can be used for global applications with the 868 MHz frequency band being primarily used in Europe, Middle East and Africa (EMEA) and 433 MHz frequency being used in Asia and South America.
“We have made our entire offering of wireless sensors, gateways and accessories available in 900, 868 and 433 MHz operating frequencies to address the immediate demands of our ever growing customer base. These additional radio frequencies allow our sensors to be used worldwide, while ensuring reliable low-power and long range operation.” said Brad Walters, Founder and CEO of Monnit.
Key Features of Monnit Wireless Sensors:
- Support 900, 868 and 433 MHz wireless frequencies
- Cellular, Ethernet and USB gateways available
- Wireless hardware optimized for reliable, low power and long range operation
- Free online sensor data storage, configuration, monitoring and alerting
Monnit currently provides 28 different types of wireless sensors used to detect and monitor functions that are critical to business or personal life, including; temperature, humidity, water, light, access, movement and much more. Monnit’s wireless gateways transmit data between local sensor networks and the iMonnit™ online sensor monitoring and notification system.
All Monnit wireless sensors include free basic iMonnit™ online sensor monitoring with SMS text and email alerting. For more information on Monnit sensors, gateways and monitoring call (801) 561-5555 or visit www.monnit.com.
Cell phones and flashlights operate by battery without trouble. Yet because of the limited lifespan, battery power is not a feasible option for many applications in the fields of medicine or test engineering, such as implants or probes. Researchers have now developed a process that supplies these systems with power and without the power cord.
For more than 50 years, pacemakers have set the rhythm for many hearts. The engineering of microelectronic implants has since advanced by leaps and bounds: they have become ever-smaller and more technologically sophisticated. The trend is moving toward miniaturized, intelligent systems that will take over therapeutic and diagnostic functions. For example, in the future implantable sensors will measure glucose levels, blood pressure or the oxygen saturation of tumorous tissue, transmitting patient data via telemetry. Meanwhile, medication dosing systems and infusion pumps will be able to deliver a targeted release of pharmaceutical substances in the body, alleviating side effects in the process…
Power without the cord - [Link]
chris @ pyroelectro.com writes:
Standard DC motor control can be tricky enough if you are new to electronics, but how about wireless dual dc motor control? A while ago I introduced you to a simple dual dc motor control design that used the SN754410NE IC to control some off-the-shelf 3v or 6v motors. Let’s take a look beyond just motor control and see if we can’t make that same system wirelessly controlled.
This article will explain how to build a dual DC motor control system, combined with a wireless receiver and transmitter which will tell the motors at what speed they should move forward, or backward. We will use standard and widely available parts so that anyone can follow along.
Wireless Dual DC Motor Control - [Link]