With the advent of IoT technologies and decreasing cost of wireless sensors, the use of remote healthcare monitoring systems is growing rapidly, thereby allowing health care access to more people at affordable costs. To illustrate the concept of IoT based patient monitoring, Raj from...

techrm @ instructables.com has a tutorial on a nice thermohydrometer: These 7 steps will drive you through the "construction" of a thermo-hygrometer with clock on Arduino UNO. Data and time, humidity and temperature will be shown on a LCD 16x2 display .If you have purchased a LCD...

Arduino's newest board, the Arduino 101 is finally here... It has an Intel Curie processor, and an on-board gyroscope, accelerometer, and Bluetooth. Let's see how it stacks up to the Uno, and find out what each of the components on the board do. At the end of the video, I go through...

by Jan Buiting @ elektormagazine.com: Harvard University researchers have developed a low-cost flow battery that stores energy in organic molecules dissolved in neutral pH water. In their report (see below) they claim that the new battery can run for a decade or more without...

The circuit presented here is based on LM317. Generally, LM317 is known as a linear regulator IC, but here the circuit operates as a switching regulator. This circuit operates by transferring energy from the input to the output by using a solid state switch. Power Efficiency of a...

by Clemens Valens @ elektormagazine.com The ongoing miniaturisation of electronics is expected to reach its limits in the near future. One of the limitations is the size of electrons that are needed in electronic circuits to transport charge from one place to the other, what we...

Jesus @ jechavarria.com tipped us with his latest project. He writes: For several months I’m working with FONA808 modules from Adafruit to make a portable, web-based locating system. This modules are based on the SIM808 module from SIMCOM manufacturer, and integrates both GSM and...

Car hacking applications have been growing during the last few years, making it faster and cheaper to get into automotive tinkering. A new device was launched recently on kickstarter called M2 by Macchina. M2 is an open-source, versatile development platform which can be wired...