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Sujets populaires : Raspberry Pi Arduino LED IoT horloge nixie T-Board ARM AVR
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Audio DAC for RPi - Networked Audio Player using Volumio [160198]
Produit disponible

Audio DAC for RPi - Networked Audio Player using Volumio [160198]

par TonGiesberts
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This is an Audio DAC designed for the Raspberry Pi. Using app Volumio it can be used as a stand alone networked Audio Player or operated thru a WebUI.
38583 Vues | 15 Commentaires
Soft start for benchtop power supplies [160383]

Soft start for benchtop power supplies [160383]

par Lucky
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Allows on/off switching of the output of a power supply without switching it off; also limits inrush current of the load.
78 Vues | 0 Commentaires
6-digit Nixie clock [150189]
Produit disponible

6-digit Nixie clock [150189]

par Lucky
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This is a remake of the Simple Nixieclock (140013-1). After this project was published we got a lot of questions from our readers about changing the time zone, which was fixed to GMT+1 in the original design but could be altered in the source code of the PIC microcontroller.
26670 Vues | 62 Commentaires
ESP8266/ESP12 programmer [160490-I]

ESP8266/ESP12 programmer [160490-I]

par Lucky
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Tool for quick and easy programming!
178 Vues | 0 Commentaires
Volume control [160321] for Raspberry Pi Audio DAC 160198

Volume control [160321] for Raspberry Pi Audio DAC 160198

par TonGiesberts
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Add-on for our Raspberry Pi Audio DAC (160198-1). Can also be used for other applications (ext. +/-5 V needed then) . Remote control and 6 pushbuttons
11568 Vues | 2 Commentaires
Remake Arduino course shield [160593]

Remake Arduino course shield [160593]

par Lucky
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New version of 140009, new LCD with Backlight!
60 Vues | 0 Commentaires
Sand Clock

Sand Clock

par Axiris
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This supercool gadget writes the time into a layer of sand. After an adjustable time the sand is flattened out and everything begins all over again.
7465 Vues | 8 Commentaires
Elektor's Attic... now this is old school!

Elektor's Attic... now this is old school!

par Jaime G.-Arintero
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 In the more than 60 years history of Elektor we must have build hundreds of projects! A lot of old hardware got lost in our move to our new offices, but a few items saved our cleaning drift. In our dusty attic we still have secured a nice collection of typical hardware and projects that defined the history of Elektor.
5768 Vues | 2 Commentaires
Simple Sound Effects 2.0 [130209]

Simple Sound Effects 2.0 [130209]

par ClemensValens
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Here is a simple, little circuit that makes loud, useless noises with an ATtiny45 programed in Bascom-AVR.
10607 Vues | 1 Commentaires
Spiral MicroTesla, USB powered [160498]

Spiral MicroTesla, USB powered [160498]

par TonGiesberts
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A circuit where you can touch an electric arc (30 kV) with your bare fingers. No harm done. It’s powered by a USB charger, drawing 0.5 or 1 A.
2783 Vues | 4 Commentaires
Multi-Purpose Data Acquisition Board for a Sounding Balloon [130082]

Multi-Purpose Data Acquisition Board for a Sounding Balloon [130082]

par ale
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Transmitting data from a capsule dangling from a weather or sounding balloon is not easy as it often involves expensive and sophisticated equipment. Luckily, cheap alternatives exist. This project together with a standard radio transmitter and GPS receiver can be used to beam down up to six analog signals and position data from a balloon, and all of that at very low cost.
21522 Vues | 8 Commentaires
Elektor Uno R4 [150790]
Staff pick
Produit disponible

Elektor Uno R4 [150790]

par ClemensValens
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The Elektor Uno R4 is an Arduino Uno R3 equiped with the ATmega328PB-AU featuring 2x USART, 2x I2C and 2x SPI and much more.
24137 Vues | 76 Commentaires
Platino Soldering Station [140107 ]
Produit disponible

Platino Soldering Station [140107 ]

par Sunil_M
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A simple Platino based soldering station for not too demanding (hobbyist) applications. Temperature range of 90 – 450 degrees Celsius with temperature readout on an LCD.
21096 Vues | 74 Commentaires
Virtual Fireplace [130274]

Virtual Fireplace [130274]

par Piero
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Fireplace simulator with realistic light and sound effects.
15623 Vues | 4 Commentaires
AVR Playground [129009-2]
Produit disponible

AVR Playground [129009-2]

par ClemensValens
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The AVR Playground is a hybrid of an Arduino Uno and a traditional microcontroller development board.
11377 Vues | 0 Commentaires
Potential-free current measurement for oscilloscopes [150170]

Potential-free current measurement for oscilloscopes [150170]

par TonGiesberts
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Using a current transducer with galvanic isolation between input and output this circuit can be used for safe measurements of currents up to 25 A rms
13527 Vues | 6 Commentaires
FPGA DSP radio for narrow band communications [ 150177-I ]

FPGA DSP radio for narrow band communications [ 150177-I ]

par Daniel Uppström
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I am working on a complete high performance transceiver for narrow band SSB/CW (and possibly also AM and FM) on shortwave and/or VHF (amateur radio bands) based on signal processing in an FPGA together with 24 bit ADC and a very fast DAC.It is stand-alone and not like most other SDR projects that are relying on a PC.
17858 Vues | 16 Commentaires
Air Ioniser [071072]

Air Ioniser [071072]

par Hedwig
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Allergic for grass pollen, trees, pollution, your cat, etc. This project, published in June 2009, might help you!
13169 Vues | 9 Commentaires
RGBdigit clock [160100]
Produit disponible

RGBdigit clock [160100]

par Lucky
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A very colourful clock, synchronised via Wi-Fi, With an optional BME280 eBoB sensor board it will also display temperature, humidity and air pressure.
20060 Vues | 18 Commentaires
Baroduino - Barograph with Arduino and 2,2" TFT screen [150425]

Baroduino - Barograph with Arduino and 2,2" TFT screen [150425]

par Daniel.Coppens
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Searching the net I did not come across mainy projects resulting in a barograph where the 48 h evolution of the atmospheric pressure was displayed on a screen. Being a sailor it is important to monitor this evolution to an extend that a more than 140 Pa/h pressure drop is the indication of upcoming very strong winds.
17938 Vues | 46 Commentaires
Supra 2.0 - High End Preamp for Record Player [150616-I]
Produit disponible

Supra 2.0 - High End Preamp for Record Player [150616-I]

par Thomas Scherer
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More than 2^5 years ago a circuit was published called SUPRA, a "superrauscharmer" MC/MM-Vorverstärker" for record players. The low noise behaviour comes from paralleling 8 cheap low noise transistors (BC550/BC560) which reduces noise by √8 = 2.82 resulting in a big board with 20 transistors (per channel!!!).
25702 Vues | 27 Commentaires
Commentaires récents
Arnoldus
Arnoldus il y a 11 heures
I just made the video visible for everyone.... (was private, sorry)
Fading LED a different way
Chris Domes
Chris Domes il y a 1 jour
Auf welcher Sprache wurde programmiert ? Arduino ? Welche zusätzlichen Libs werden benötigt ? @Roland : du kannst bei WS2812 / WS2812b Stripes problemlos die Streifen parallel schalten. Wichtig ist nur, das Data-In der ersten LED jedes Streifens parallel geschaltet wird und Data-Out der Stripes offen bleibt, dann läuft auf beiden die gleiche Sequenz da der Rest einfach Daisy-Chained ist. Damit kannst beliebig viele Streifen parallel mit dem selben Muster laufen lassen, allerdings mußt du unbedingt auf die Stromaufnahme achten da bei Weißlicht mit 100% Helligkeit pro LED satte 55 mA gezogen werden, das kann je nadh Länge und Lichtmuster schon stattliche Ausmaße annehmen, außerdem sollten die WS2812x LED idealerweise mit nicht mehr als 5 V betrieben werden, da bitte für sorgen damit man lange Spaß dran hat
Wearable LED Controller
David Ashton
David Ashton il y a 1 jour
Please read well in the 4th last paragraph... " If you want to have a “full on” setting, apply a switched 5V (or 12V…) via a resistor of the same value as R5 to the Cathode of D2. "  (ie the + input of the 2nd Op-Amp).  
Pulsing Led for Competition
ClemensValens
ClemensValens il y a 1 jour
Thank you. Added to the list of entries.
SIMPLE FADING LED
ClemensValens
ClemensValens il y a 1 jour
Added to the list of entries.
Fading LED a different way