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USB Measurement Adapter
Testing Current and Signal Quality of USB Ports
4...20 mA Current Output for Arduino Uno
A Reliable, EMI-Insensitive Current Loop Interface
Vacuum Cleaner Automatic Control
Keep Your Tools’ Work Area Clean
DDS Generator with ATtiny
Opamp-Tester V2
New PCB – Now Also Suitable for SMDs
550-mW “Lamp” Audio Amplifier
Get the Warm Sound of Vacuum Tubes With Ease
Fuse Guard
Monitoring a Fuse with a Flashing LED
HQ RIAA Preamplifier
Get the Most Out of Your Vinyl Records!
Turntable Speed Calibrator
An Arduino-Based 100–120 Hz Strobe Light Generator
Elektor Classics: video buffer/repeater
Infrared Remote-Controlled Dimmer
Control Your Halogen or LED Floor Lamp Effortlessly and With Style
How to Use switch…case on Strings in C++/Arduino IDE
Magnet Finder
With a Simple Hall-Effect Sensor
Raspberry Pi Smart Power Button
A Solution for Raspberry Pi Up to Model 4
Essential Maker TipsProfessional Insights for Everyday Making
Practical Projects with the 555 Timer
DC Motor Control and Fast Reaction Challenges
Basic AC-Load-On Monitor
Save Energy with a Simple Device
Power Banks in Parallel
A Three-Day Continuous Power Solution
VFO Up to 15 MHz
An Implementation With Raspberry Pi Pico
Violin Tuner with ATtiny202
Elektor Classics: video amplifier for B/W television sets
Capacitance Meter
20 pF to 600 nF
Quasi-Analog Clockwork Mk II
Two LED Rings for Hours and Minutes
You Can Do Anything You Want
(with the Arduino Ecosystem at Your Side)
Neon Lamp Dice
Elektor Classics: RTTY calibrator indicator
Inspiring Hardware Designs for Your ESPs
Elektor Classics: variable 3 A power supply
RGB LEDs with Integrated Control Circuit
Light with Precision: ICLEDs Set Standards
Experiment: Towards a Mixed-Signal Theremin?
Blending Modern Time-of-Flight Sensors With the Timeless XR2206 Analog Generator
ESP32 Audio Transceiver Board (Part 1)
SD Card WAV File Player Demo
Infographics: Circuits and Circuit Design 2025
Small Audio Mixer
A Simple and Versatile Scalable Design
Smart Staircase Light Timer
Save More Money on the Energy Bill!
Smarten Up Your Shutters
Controlling Velux Hardware With an ESP32 and MQTT
Solid-State Foot Warmer
Energy-Efficient Comfort
Is the M5Stamp Fly Quadcopter the Next Tello?
Boosting Wi-Fi Range of the ESP32-C3 SuperMini
A Simple and Effective Antenna Mod
ZD-8968 Hot-Air Soldering Station
A Budget-Friendly Workhorse or Just Hot Air?
Parking Sensor Tester
Finding Defects in the PDC System of a Car

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