25009 2025

£10.95 | €13.00 (DE) | €14.90 (other EU countries) | $13.95 SPECIAL EDITION withwith DetailedDetailed ProjectsProjectsCIRCUITCIRCUIT > ESP32 Audio > Turntable Speed Calibrator > Infrared Remote- Transceiver Board > USB Measurement Adapter Controlled Dimmer > Neon Lamp Dice > Small Audio Mixer > Lamp Audio Amplifier > DDS Generator with ATtiny > Parking Sensor Tester > Capacitance Meter > Vacuum Cleaner > Solid-State Foot Warmer Automatic Control... and much more! 2025THIS EDITION CIRCUIT SPECIAL Transceiver Board (Part 1) SD Card WAV File PlayerNeon Regulars & Features Projects 3 Colophon 6 USB Measurement Adapter Testing Current and Signal Quality of USB Ports 37 Software Tip How to Use switch…case on Strings in C++/Arduino IDE 9 4…20 mA Current Output for Arduino Uno A Reliable, EMI-Insensitive Current Loop Interface 42 Essential Maker Tips Professional Insights for Everyday Making 12

£10.95 | €13.00 (DE) | €14.90 (other EU countries) | $13.95 25009 CIRCUITELEKTORMAGAZINE.COMSPECIAL 2025 * * SINCE 1961 SPECIAL EDITION PackedPacked withwith DetailedDetailed ProjectsProjectsCIRCUITCIRCUIT SPECIALSPECIAL 20252025 Design Ideas, Tips & Tricks > ESP32 Audio > Turntable Speed Calibrator > Infrared Remote- Transceiver Board > USB Measurement Adapter Controlled Dimmer > Neon Lamp Dice > Small Audio Mixer > Lamp Audio Amplifier > DDS Generator with ATtiny > Parking Sensor Tester > Capacitance Meter > Vacuum Cleaner > Solid-State Foot Warmer Automatic Control ... and much more! 2025THIS EDITION CIRCUIT SPECIAL ESP32 Audio Transceiver Board (Part 1) SD Card WAV File PlayerNeon Demo Lamp Dice 69 84 Regulars & Features Projects 3 Colophon 6 USB Measurement Adapter Testing Current and Signal Quality of USB Ports 37 Software Tip How to Use switch…case on Strings in C++/Arduino IDE 9 4…20 mA Current Output for Arduino Uno A Reliable, EMI-Insensitive Current Loop Interface 42 Essential Maker Tips Professional Insights for Everyday Making 12 Vacuum Cleaner Automatic Control Keep Your Tools’ Work Area Clean 46 Elektor Books Practical Projects with the 555 Timer 14 DDS Generator…