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Activator for lead accumulators [160064]
Produit disponible

Activator for lead accumulators [160064]

par Lucky
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Short high current pulses can prevent or even solve sulphating of the lead accumulators and can be used to measure its state of charge
3565 Vues | 3 Commentaires
Peltier Lamp
Produit disponible

Peltier Lamp

par Axiris
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Efficiency booster for candles. The peltier lamp converts heat energy released by a tea light into electric energy in order to drive a USB LED light.
11278 Vues | 10 Commentaires
Card Sound

Card Sound

par fasoft
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Sound file player. Play sounds stored on an SD card with 2x 7W output power.
7179 Vues | 10 Commentaires
Contest: design a fading LED circuit, win €100!
Staff pick

Contest: design a fading LED circuit, win €100!

par ClemensValens
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Design an all-analog fading LED circuit, post it on Elektor Labs, and make a chance to win a €100 gift certificate. Here are the results!
22012 Vues | 22 Commentaires
Weather Display with ST Nucleo [160157]

Weather Display with ST Nucleo [160157]

par Lucky
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Graphic LCD shows weather forecast
571 Vues | 0 Commentaires
RF Power Meter with 1MHz-10GHz bandwidth and 55dB dynamic range

RF Power Meter with 1MHz-10GHz bandwidth and 55dB dynamic range

par BreedJ
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What is it: An RF Power Meter is a device which you can use to measure the power a transmitter outputs. Why did I built it? Read all about it!
25847 Vues | 58 Commentaires
A traffic-light system for the modell-railroad

A traffic-light system for the modell-railroad

par robvh
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By using so called ladder diagrams one can build a PLC-program like a schematic diagram using relais like in the early days of automation.
12499 Vues | 1 Commentaires
Flexible IoT sensor interface, GoNotify
Produit disponible

Flexible IoT sensor interface, GoNotify

par Blue bird
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This is a universal IoT sensor interface. It will challenge you to create power efficient sensor-apps over WiFi.
7714 Vues | 0 Commentaires
Laser Plot Clock

Laser Plot Clock

par Axiris
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The laser plot clock writes the time on a piece of glow in the dark sticker material using a violet laser module.
1386 Vues | 2 Commentaires
Head-up Speed Display for Car

Head-up Speed Display for Car

par jojohn
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Simple circuit that projects the car's speed on the wind screen using 7-segment LED displays and an Arduino Uno.
8899 Vues | 9 Commentaires
30V-3A-SMPS [150161]
Produit disponible

30V-3A-SMPS [150161]

par TonGiesberts
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In 2010 we published a power supply called UniLab (project 090786). It was able to deliver 30 V and 3 A. This design can be considered its successor.  Maximum voltage is also 30V and the maximum output current is limited to a little over 3 A (5 A is possible, but with reservations). We used a different step down voltage regulator, the LM2677-ADJ.
16848 Vues | 11 Commentaires
Versatile Switch Mode Power Supply PWM Controller [ 150100 ]

Versatile Switch Mode Power Supply PWM Controller [ 150100 ]

par Mickael.Delayen
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Although SMPS (switch mode power supplies) can take various structures (Buck, Boost, Flyback, Forward, etc.), they are always based o
7242 Vues | 5 Commentaires
Tabula: Trackable Tangibles on Multi-Touch Displays [160123]

Tabula: Trackable Tangibles on Multi-Touch Displays [160123]

par Lucky
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How to detect objects placed on a touch screen...
2624 Vues | 0 Commentaires
Maximum Power Point Tracking for Solar Photovoltaic Panel [150411]

Maximum Power Point Tracking for Solar Photovoltaic Panel [150411]

par bera
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MPPT – Maximum Power Point Tracker
6229 Vues | 4 Commentaires
Spot welding [130286-I]

Spot welding [130286-I]

par Lucky
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A few years ago Elektor published a workshop on spot welding for smaller objects (welding battery packs) using capacitive discharge. This was not a finished project, rather a starting point for experiments and development.
11619 Vues | 16 Commentaires
Platino Battery Tester [130543]
Produit disponible

Platino Battery Tester [130543]

par Sunil_M
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IntroductionA simple Platino-based battery Tester is designed for not too demanding (hobbyist) applications. A simple way of establishing the capacity of a storage battery is to recharge it and then discharge it again in a controlled manner.
6442 Vues | 2 Commentaires
SKIP!! (single button Media Player control via USB)

SKIP!! (single button Media Player control via USB)

par Lucky
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At home we ripped all our audio CDs to a NAS and most of the time we use Windows Media Player or VLC player (we still don’t agree which one’s the best) in random order play to have some background music in our workshop.
3558 Vues | 2 Commentaires

Automatic license plate recognition (ALPR)

par Sunil_M
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Automatic license plate recognition (ALPR) is a mass surveillance method that uses optical character recognition on images to read and recognize number. They can use existing closed circuit are road-rule enforcement cameras, or ones specifically designed for the task.
33401 Vues | 4 Commentaires
CoCo-ri-Co! Guitar Tuner [150006]

CoCo-ri-Co! Guitar Tuner [150006]

par ClemensValens
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Because the CoCo-ri-Co Cool Controller Concept is a hexagonal board with a powerfull ARM Cortex M0 processor and a ring of LEDs, we thought that a 6-string guitar tuner would be a nice application for it. By adding an analog front-end and some clever software the LEDs can indicate how well the guitar is tuned.
3506 Vues | 0 Commentaires

Guitar BoB [150382]

par ClemensValens
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A guitar input module for easy breadboarding. This project spun of from the CoCo-ri-Co guitar tuner.
3177 Vues | 0 Commentaires

audio traffic light [140082]

par Niek.Laskarzewski
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The audio traffic light is a straightforward circuit which tells you whether an audio signal is dangerous for your ears or not.
2526 Vues | 0 Commentaires
Commentaires récents
Alectronic
Alectronic il y a 15 heures
That wasn't the case Clemens. I already fixed the characters like you did. But still got a remaining chip memory shortage message at the end of the last line in Bascom that made successful compiling completely impossible. And even the configuration fuses from Atmel Studio were different because they do not correspond with the results we should get in Bascom. Why not give the correct fuses like they should appear in Bascom? Screenshots from Atmel Studio didn't match that of Bascom and gave completely different results. Thank you for attaching the correct Bascom Basic listing. I will check it hoping to find the cause for the previous Bascom compiling error.
Simple Sound Effects 2.0 [130209]
Roel Arits
Roel Arits il y a 16 heures
There is no cure for LED-addiction, only a lot of side-effects. ;-) Thanks for your enthousiasm Clemens.
Mechanical LED fader
ClemensValens
ClemensValens il y a 21 heures
Straight into this week's newsletter.
Mechanical LED fader
TonGiesberts
TonGiesberts il y a 22 heures
I presume you're asking about the Isolatiolation and it  depends on the LEM LTS 25-NP if build as described. From the datasheet: Rms voltage for AC isolation test, 50 Hz, 1 min 3  kV Impulse withstand voltage 1.2/50 µs  > 8  kV Rms voltage for partial discharge extinction @ 10pC > 1.5  kV Look at the datasheet for more information.  
Potential-free current measurement for oscilloscopes [150170]
ClemensValens
ClemensValens il y a 1 jour
It is a Bascom-AVR program. However, if you did a copy-paste from the PDF you will end up with a file containing characters that the Bascom compiler doesn't like. I have attached the cleaned-up & tested source code to the project above. It compiles without errors in Bascom-AVR 2.0.7.5. The configuration fuses shown in the article is a screenshot are from Atmel Studio (as mentioned in the text).  
Simple Sound Effects 2.0 [130209]