How often have you wandered around searching for a shop in a new Mall you are visiting or a ward in a large hospital? With the aid of GPS we have no trouble locating the facility, but once we enter the building we soon lose the GPS signal.

H-Term: Terminal for the serial PortZZ-Umrechner: convert bin to hex or decHyperCam: record your Desktop for Videotutorials.HxD-Hexeditor: open and edit all Data

 By Marco van Nieuwenhoven During the last months my freezer has stopped working 3 times resulting in a defrost of it's complete content. This project describes how I tend to fix it.

Able to drive a 400W brushless motor High current [20A - 40A] Small PCB (4 layers) CAN Connectivity Sensorless method to drive motor

This little extension board provides the Elektor Linuxboard with a single real time clock. The Elektor extension board for the Elektor Linuxboard has a real time clock and a display and additional I/O. If only a real time clock is needed this little extension is sufficient. It uses a DS1337. The chip has two output pins for alarms that can be configured in software.

How to debug on serial without a PC ? How to replace the 2x16 LCD on small systems ? With a VGA autonomous console !

Existing grids are creating all sorts of problems.

This is a follow-up of the AirControl which was published in Elektor (ID: 090329-1) in 2010. This enhanced version features a SD card socket, a high-precision pressure sensor, a dot matrix display and an optional GPS receiver, which should make a perfect hiking/walking companion... You are interested in electronics and hacking, hiking and walking, take a look and join the group...

I want to start a project to transform a standard tripod into an automated tripod. I see the following specs:automatic horizon adjustmentautomated horizontal movementsremote controledI need:an accelerometerstepper motorswireless solutionif you have any experience or ideas, feel free to join in

If your USB device ever suffers from noise caused by an earth loop or if you want to protect your PC against external voltages then you need a USB isolator.

This device contains a USB-DMX converter (isolated) and a small memory chip. Make your scenes on your computer with Freestyler, and upload the file into this device.

This stand-alone data logger displays pressure, temperature and humidity readings generated by I²C-bus sensors on an LCD panel, and can run for six to eight weeks on three AA batteries. The stored readings can be read out over USB and plotted on a PC using gnuplot.

 Measure video, electromagnetic signals and position to make an Electromagnetic Smog MapAll around is there are electromagnetic fields. Sometimes we have no idea on what frequency or the patern of these signals. The idea is to create a art project where we measure the signals against their position and see if that start making sense.

Need simple line-in / line-out audio wireless senders/receivers @ cd-quality. A nice setup would be to use any one of three transmitters and all of 3 receivers simultaneously. There are some good products out there (e.g. AudioPro WF100, Atlantic WA-50-SYS) but they are expensive. Anyone tried the Aurel TX/RX Audio 2.4 ? Even these are expensive at about €60/pair and I want 3 or 4 pairs!

need universal timer easy 2 operate

[DEUTSCH]

Wie wärs mit einem universellen Verteilerpanel, um diverse (z.B. Solar-) Gleichspannungsversorgungen sicher zum Verbraucher zu bringen. Ein Eingang für die Akku's und 5 - 10 Ausgänge die mit zentraler sowie individueller Ein-Aus Funktion, elektronischer Sicherung, Unterspannungsabschaltung sowie LED-Statusanzeige versehen sind.Ein paar Grundideen:

Automation of reef tank necessary devices with options depending of equipment Minimum base is automation of 220Vac outputs for: - at least three output for hours programmes lights, possibly hqi lights si careful with rush current - at least one output for filtering pumps, - at least four outputs for water moving - at least one output for water heating - at least one output for water cooling - p

20 august 2012 : from nowdays ... discussion will be in English +++++++++++++++++++++++++++++++++++++++++++++++++++TODO : translation of pertinent existing texts to EnglishNext posts will take place from here +++++++++++++++++++++++++++++++++++++++++++++++++++

Einen automatischen Solarladeregler auf MPP basis der aber auch Verbraucher entweder nach Zeit oder nach Dunkelheit einschaltet.Das ganze auf einen AVR programmiert und vielleicht mit Display wo man auch noch ablesen kann wieviel die Sonne als ertrag gebracht hat.