Elektor Mag August & September 2023

Elektor Mag August & September 2023 , Volume 49, No. 523

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Circuit Special 2023 -50+ Circuit & Project

• ✓Tiny Solar Supply
• ✓ Solid-State Stereo Audio Switch
• ✓ Large RGB Digit
• ✓ Microphone Preamplifier with 48-V Phantom Power Distribution
• ✓ Square Wave Generators with Duty Cycle and Frequency Controls
• ✓ Simple Dynamic Compressor
• ✓ Simple Electronic Lock
• ✓ Active Rectifier
• ✓ On / Off Switching System for Active Boxes
• ✓ Unbalanced/Balanced Converter
• ✓ 2023: An AI Odyssey
• ✓ Speed Controller for Fan or Ventilator
• ✓ The Latest from Arduino Project Hub
• ✓ Power Overload Monitor
• ✓ Blink in the Dark Without Transistors
• ✓ Morse Code Generator
• ✓ Programmable Video DAC
• ✓ A T(eeny) Tiny Piano
• ✓ Dual Dice without MCU
• ✓ Electronic Scarecrow
• ✓ Circuits to Amuse, Inspire, and Amaze
• ✓ THD Generator
• ✓ Thyristor-Based Overtemperature Indicator
• ✓ PTC Fuse Flip-Flop
• ✓ Funny Bird
• ✓ Neon Lamp with a Microcontroller
• ✓ Temperature-Stabilized IC Current Source
• ✓ Second-Order Adjustable Treble Boost
• ✓ Edwin Comes Home
• ✓ One-Armed Bandit
• ✓ Simple Digitally Controlled Variable Resistor
• ✓ Water Leak Protection
• ✓ Eco-Timer with Auto-Shutdown
• ✓ ChatGPT and Arduino
• ✓ ZD Meter
• ✓ Servo Tester
• ✓ ESP32 Windows Controller with Free Software
• ✓ Analog and Mixed-Signal ICs by Microchip
• ✓ Interface Standards
• ✓ Li-Ion Battery Monitor
• ✓ PS/2 Mouse As Rotary Encoder (and More…)
• ✓ Simple Twilight Switch
• ✓ Water Pump Controller
• ✓ Solar-Powered Christmas FM Radio Ball
• ✓ Vibration Sensor with Relay
• ✓ Continuity Tester
• ✓ Power On/Off with a Pushbutton
• ✓ Mini-Drill Power Control 2023
• ✓ Digital Vibration Sensor
• ✓ Reverse-Polarity Protection with Low Voltage Drop
• ✓ A Low-Cost Frequency Standard
• ✓ Tiny DCF77 Simulator
• ✓ The Lilygo T-PicoC3
• ✓ Hexadoku

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