Table of Contents 555 Timer as Audio Oscillator Astable Mode for Continuous Tones Frequency Calculation and Control Tone Generator Projects... Continue reading
Speakers, amplifiers, MP3 modules, microphones and audio processing for Arduino and Raspberry Pi
Table of Contents Custom Arduino Doorbell Generating Musical Tones MP3 Doorbell with DFPlayer Wireless Doorbell with ESP32 Complete Doorbell Build... Continue reading
Table of Contents Music-Driven Water Fountains Pumps, Valves, and Audio Input Audio-to-Pump Control Circuit Arduino Fountain Controller Code Building the... Continue reading
Table of Contents Sound Source Localisation Time Difference of Arrival (TDOA) Microphone Array Design Direction Finding Algorithm Practical Applications FAQ... Continue reading
Table of Contents What Is Automatic Gain Control? AGC Theory and Applications Analog AGC with OTA Digital AGC with Arduino... Continue reading
Table of Contents TDA2030 Class AB Amplifier Specifications and Comparison Standard Application Circuit Building on Perfboard Heatsink and Thermal Management... Continue reading
Table of Contents Why Measure Speaker Impedance? Impedance vs Resistance Arduino Impedance Measurement Circuit Measurement Code and Calibration Frequency Sweep... Continue reading
Table of Contents Ground Loop Hum: The Most Common Audio Problem What Causes Ground Loops How Audio Transformers Break Ground... Continue reading
Table of Contents What Is a USB Sound Card? PCM2704 DAC IC Overview Circuit Design PCB Layout Considerations Building the... Continue reading
Table of Contents Why Build a Headphone Amplifier? Class A Amplifier Basics CMoy Headphone Amp Circuit Component Selection Building in... Continue reading
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