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All items tagged with Elektor.LABS (454)
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Build a non-programmable timer without features (aka hourglass)
September 18, 2018 by Clemens Valens

Build a non-programmable timer without features (aka hourglass)

Feature creep is the phenomenon of adding features to a product or a program that are not necessary for operating the product or program. Examples are colour pickers and font selection options in smartphone apps, and all sorts of other obscure configurable parameters. This little timer does not suffer from feature creep… or does it?
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Sign up for your Elektor Uno R4 at GroupGets
September 12, 2018 by ClemensValens

Sign up for your Elektor Uno R4 at GroupGets

The Elektor Uno R4 is like an Arduino Uno but featuring two UARTs, two I²C (IIC or TWI) ports, two SPI ports, 24 GPIOs, eight analogue inputs, nine timers, and more. Based on the B-type of the ATmega328 microcontroller popularised by the Arduino Uno, the Elektor Uno R4 is the 100%-compatible successor to the Uno that the Arduino team failed to design. So we did it for you. Sign up for one (or more) Uno R4's at GroupGets.
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Build a bedroom clock showing outside temperature too
September 4, 2018 by Clemens Valens

Build a bedroom clock showing outside temperature too

Do you like to know how cold it is outside before getting out of bed? Then this DIY clock is for you. An RPi running a home automation server, an ESP32 with a DHT22 sensor attached to it, and another ESP32 driving an LED display is all you need. Sounds complicated? Welcome to 2018.
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Last tickets for electronica Fast Forward 2018, get yours now!
August 28, 2018 by Clemens Valens

Last tickets for electronica Fast Forward 2018, get yours now!

This is our last call for startups wishing to present their company and products to the 75,000 visitors of electronica, world's largest electronics trade show in Munich, Germany. Only very few places are left so don't let this unique opportunity pass you by.
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Electrically Safe LED-to-Lamp Converter
August 21, 2018 by ClemensValens

Electrically Safe LED-to-Lamp Converter

These days it's common practice to replace incandescent light bulbs with LEDs, but what if you want to do the opposite? With this converter you can. Simply replace the LED by an optocoupler and let it switch the lamp.
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The Elektor Board Games “Design for a Better World”
August 7, 2018
Via: elektormagazine.com

The Elektor Board Games “Design for a Better World”

Supporting engineers and start-up companies to drive meaningful innovation, Avnet Silica and EBV Elektronik have launched the international Board Games contest caled "Design for a Better World" together with electronica Fast Forward 2018: the startup platform powered by Elektor.
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Build a Programmable Refrigerator Watchdog
July 31, 2018 by Clemens Valens

Build a Programmable Refrigerator Watchdog

Who realizes this little project gets a device that monitors & displays the current refrigerator temperature, and that logs the time the door was opened and for how long. Alarms can be set on maximum allowed temperature and door-open time.
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Build a 3-component sinewave oscillator for 1 euro / pound / dollar
July 24, 2018 by Clemens Valens

Build a 3-component sinewave oscillator for 1 euro / pound / dollar

Sinusoidal waves are important in electronics. Many applications need sinewaves to function and a lot of electronic circuits can be tested by firing a sinewave at them. Sinewave generators therefore are handy things to have lying around. If you don’t have any, build this one. It only needs three parts, and costs about one euro…
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Summer Contest: Who is your favourite PCB order pooler?
July 17, 2018 by Clemens Valens

Summer Contest: Who is your favourite PCB order pooler?

The 2018 Elektor Labs Summer Contest is about PCB order pooling. Incredibly many pooling services are available on the internet, but which one is the one for you? Tell us about your favourite pool service provider for PCBs and join the raffle for a bunch of gift certificates.
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Build a secure envelope for your secret messages
July 10, 2018 by Clemens Valens

Build a secure envelope for your secret messages

Messages can be encrypted to prevent their contents to be intercepted or altered. However, to read the message the intended receiver must be in the posession of the decryption key, which raises the question of how to send the key in a secure way to the destination? This project tries to solve this chicken-and-egg problem by adding tamper detection to the envelope.
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