Introduction This project implements a wireless surface electromyograph that displays the signal using a television as an oscilloscope. Electromyography detects the electrical signals that the human body generates to contract muscles. Detecting very low voltages in the milliVolt range on the skin surface is not a trivial task. As shown in figure 1, EMG signals […]
Wireless Electromyograph using ATmega32 Read More »
Introduction: For our project, we designed a wireless keyboard that uses RF to transmit signals to the computer. In our design, we use a regular, 102 key ps/2 keyboard and connect it to our transmitter circuit. On the computers side, we connect our receiver circuit to the ps/2 port on the back of the computer.
Wireless Keyboard Using Atmega32 Read More »
The explosive growth of “wireless” systems has led to a simultaneous expansion in the use of RF connectors and their associated cables. These assemblies are increasingly vital links between multiple circuit boards, between antennas and front ends, and between power amplifiers (PAs) and antennas. They are instrumental to the operation of such wireless devices and
Selecting an RF Connector for your Wireless System Read More »
This is a small project to get you started with the electric imp and a Thermistor so you can see how you can get temperature readings updating live on a web site. This instructable will address both the hardware and the web site along with all the parts in between. I’ve tried to keep it
Simple wireless temperature sensor updating Read More »
Before like two years when I got my first Ladybird toy, I was thinking it will be great if I can charge those wirelessly, without changing the battery. Yes, it is charging very slow, yes it will add some weight, but it will be cool. QI standard is going forward, and there is already some
Wireless power and charging Read More »
NXP Semiconductors has announced a family of small-footprint wireless modules based on the ultra-low-power JN5168 microcontroller. Supporting multiple network stacks including ZigBee Home Automation, ZigBee Light Link, ZigBee Smart Energy, JenNet-IP and RF4CE, the JN5168 wireless modules feature footprints as small as 16 x 21 mm and very low power consumption in transmit and receive
Low-power Wireless Modules Support Multiple Protocols Read More »
Intelligent houses, data transfer, remote switching of lighting, these are only few examples of usage of modern technology called IQRF. A wireless data transfer usable for example to control various devices, can be in general reached by four basic ways: 1) RF chip, microcontroller, development of your own SW 2) RF module 3) RF module
IQRF – a wireless technology which breaks barriers Read More »
High-quality enclosures from company New Age Enclosures can be assembled by one click. If we´ll carefully design a device in a way to be as small as possible, it´s natural, that we don´t want to make it bigger by a uselessly bulky enclosure. For this purpose we keep in offer enclosures for small USB or
Small USB device? – No problem Read More »
A smart choice: The miniSWARM is a versatile USB stick-sized wireless Arduino development board. It’s as powerful as the Arduino Mega and has the wireless capabilities of an XBee radio, but we’ve made it a fraction of the cost of an Arduino + radio shield – cheap enough to leave in any project. A wireless powerhouse: We’ve
The miniSWARM – Scalable Wireless Arduino Radio Module Read More »
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. For more detail: DIY Wireless
DIY Wireless Data Transceiver Read More »
