Strange Contraption for a USB Experiment

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DTMF Decoder and Phone Audio Matrix Switching

Finalizing Power Supply Fixes for Guitar Effects

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PT2399 Lo-Fi Echo Tryout

Distortion on the Breadboard

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What Do Binary Counters Sound Like?

Making the 555 More Flexible

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Audio Hum Solved and 3 Power Supply Teardowns

First Mailbag of 2024!

16 Ch Guitar Loop Switcher

16 Switches Controlling Things via RS485

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DMX512 RS485 to 3.3v/5v Isolated Interface

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Phone Line Simulator - Phones and Modems Connecting (Locally)

MCP42100 Digital Pot Breakout Board

PTC Fused Power Distribution Board for 2.1x5.5mm, Screw Terminals, and Dupont Headers

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Loop Switcher Part 2 with 16x16 Matrix

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16x16 Analog Crosspoint Switch using two MT8816's

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Audio Signal In, Three Op Amp Output Copies for Multi Destination Sharing

PT8211 I2S DAC Test with ESP32

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I2S: MEMS Mics and a PCM5102A DAC