How to test a power supply or solar system?


Electronic loads, programmable and with a recovery function are the best choice for dynamic testing simulating real conditions.

Usually you don´t test your power supply and you assume it is working well with your equipment. But what if not? Sometimes your equipment fails without any evident reason and it might be because your power supply is not sufficient for your application. We have a solution which helps you identify the problems with the power supple – electronic load.
With electronic load you can test your power supply or solar system and you can easily program the behavior of your device or even a bigger load. Elektro Automatik offers a wide range of electronic loads, even with energy recovering function.Further information can be found in the electronic loads catalogue (14,5 MB). Upon request, we´re able to provide you with any product from the Electro Automatik catalogue (14,5 MB).

How to test a power supply or solar system? – [Link]

Simple FM Radio



This is one of my favorite radio builds just because of how simple it is and how well it is able to pick up a lot of FM radio stations. I have browsed the world in search of a one transistor FM receiver. I have seen a couple but they were always attached to some sort of added device, such as another IC or another transistor for amplification in the receiver itself. Through my continued quest of searching for that too good to be true one transistor, I happened to run across a super-regenerative receiver, by Charles Kitchin, famous for his vast knowledge of regenerative designs. I printed out the schematic and made it. It turned out extremely well.

Simple FM Radio – [Link]

Tiny Message Board


by tareker @

We will make a tiny connected message board with a 0.96″ OLED display that can be controlled from your phone. We will use the IFTTT “DO” app to set and clear the reminder so that no extra hardware will be required besides the OLED display. In addition to the reminder, our tiny message board can display 3 other lines, which we will use to display the daily weather temperature forecast and a surf report, which will be pushed via a couple of IFTTT recipes.

Tiny Message Board – [Link]

Arduino Display for Liquid Flow Sensors



This project was done for a Friend Of a Friend. He needs to monitor water flow rate and quantity for his solar heating projects. He is mainly interested in this two inch sensor but also sent along a small plastic hose bib type similar to the Adafruit 828. Both of these sensors are turbine types, water flow spins a plastic wheel which magnetically triggers a pulse output proportional to the speed at which the wheel is turning. There’s lots of these sensors made for irrigation and industrial processes.

Arduino Display for Liquid Flow Sensors – [Link]

The Pendulum Clock


by Dylan Rush :

If you’ve ever rode the Link Light Rail in Seattle to the airport, you may have glanced out of the window while traveling through a tunnel and seen playing cards illuminated on the walls. These images are not made from two dimensional screens. Each display is just a row of lights that changes rapidly as the train drives by, giving the illusion of a two-dimensional picture.

The University Street station also has rows of lights blinking on the walls on the mezzanine floor. I always point out the artwork whenever I walk through the station with someone. At first glance the displays just appear to be red lines, but if you move your eyes rapidly from side to side, there are images hidden in how the lights blink.

The Pendulum Clock – [Link]

Intel and Banzi presented Arduino 101 and Genuino 101


by Zoe Romano @

Today during Opening Conference at Maker Faire Rome, Josh Walden Senior Vice President of Intel Corporation and Massimo Banzi, co-founder of Arduino, announced the upcoming release of Arduino 101 (U.S.) and Genuino 101 (outside the U.S.). The board features a 32-bit Intel® Quark™ microcontroller for minimal power consumption, 384 kB of flash memory, 80 kB of SRAM (24kB available for sketches), an integrated DSP sensor hub, Bluetooth* Low Energy radio, and 6-axis combo sensor with accelerometer and gyroscope.

We collaborated with Intel to provide the maker community an affordable learning and development board ideal for entry-level makers and education environments and also the first widely available development board based on the tiny, low-power Intel Curie module.

Intel and Banzi presented Arduino 101 and Genuino 101 – [Link]

Experiments with 2.4″ TFT


Rui Cabral tipped us with his latest project. He writes:

Lately I’ve been testing a small 2.4″ TFT display PBC ILI9341 with touch and bought on ebay for less than 8euros!

This graphic display is an excellent solution for both small projects and for more advanced projects since it includes SD card connector to access stored images.

This display has a resolution of 240×320 RGB.

Experiments with 2.4″ TFT – [Link]

FLIR TG165 for only 299EUR – it is a bargain!


If prices of thermal imaging cameras seem to you to be high, but you´d like to take advantage of a graphic temperature displaying, then the TG165 is the right device for you for only 299EUR and limited time. Do not hesitate, this price is valid only in October!

Now for only 299EUR and limited time. Do not hesitate, this price is valid only in October!  Infrared thermometer or infrared camera? A typical dilemma, which device to choose can be solved very simply – by a purchase of imaging thermometer Flir TG165!
Thermal imaging camera is a great thing for various industrial segments, as we described to you for example in our article „Even hidden faults can be found with FLIR thermal cameras”. Perhaps the only disadvantage of quality thermal cameras are their prices. Especially for a casual usage perhaps majority of us will consider the 1000+ EURO investment for such a device.

The price of this perfect device now dropped to 299EUR!

A good job can be also done by an IR thermometer but by its usage we´re missing a unique feature of visual imaging of a temperature distribution in a given device. In reality perhaps nobody is able to make for example 3600 measurements ( 60x60px) within few seconds and consequently to make an idea how it looks with a temperature in a given device.

  From this point of view – the novelty of company Flir – TG165 is a unique device intended for everyone, who wants to have a visual idea about temperature for an affordable price. TG165 is a combination of a quality IR “point” thermometer (24:1) with an IR camera with a new Flir „LeptonR“ chip.

Without a useless “going around” it can be straightly said, that the imaging functionality of TG165 has a fix-set range and that it´s not possible to exactly determine temperature from a displayed image (except a middle of the image, where it is measured exactly by a central thermometer). However, usually in praxis it doesn´t matter at all, because such imaging is sufficient to discover warmer/ colder places and consequently – it´s possible to focus a center of a measured field on a given “suspected” place.
In result, we get a device, which is in praxis fully usable for a visual inspection of distribution boxes, motors, compressors, PCBs and other for a roughly half price of a usual thermal camera.

Also beneficial is a double (diverging) laser, which visually shows a measured area – independently of a distance from a measured object. Professional construction and a sturdy construction is also underlined by a fact, that the device is designed to withstand a fall from a 2m height.

Detailed information will provide you the TG165 brochure and datasheet TG165.

FLIR TG165 for only 299EUR – it is a bargain! – [Link]

RF Remote DC Motor Direction Controller


RF Based DC Motor Direction Controller project provides an easy way to control the direction of your DC Motor connected to the receiver. This project has been design around HT12E and HT12D encoder / decoder chips from Holtek. With jumper selectable address on the receiver and transmitter we can control multiple motors in one area without interference with one remote.


  • Remote Motorized Volume Control
  • Remote Toy or Robot Controller
  • Remote Controlled Curtains

RF Remote DC Motor Direction Controller – [Link]