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ESP32 Internet Radio, MP3 Player , and Alarm Clock

This time I will show you how to make a stand-alone Internet Radio, which in terms of characteristics, stability, and functions is comparable and even better than commercial devices of this type, and yet the price for making it is many times lower.

March 04, 2023 by Mirko Pavleski

Linear Scale ТЕА5767 FM Radio on ili9341 TFT Display

Simple FM Radio with a beautiful retro look linear scale.

January 14, 2023 by Mirko Pavleski

6-Channel Speaker Selector

A DIY six-channel stereo speaker selector to share a pair of speakers between six stereo audio systems.

December 31, 2022 by Dilshan Jayakody

DIY Simple PCL82 Low Voltage (12V) Tube Amplifier

How to make a very simple single tube amplifier that also works at low voltage and is powered by 12V DC. Also, instead of an output audio transformer, a standard 220V/6V mains transformer is used.

December 24, 2022 by Mirko Pavleski

Trio JR-500S Ham Radio Receiver: a Review

My "new" Trio JR-500S Receiver, and some general comparison with a modern SDR receiver.

December 10, 2022 by Mirko Pavleski

5.1 channel analog audio processor

This project is a 5.1-channel, USB analog audio processor based on PT2322 and Arduino Nano. This inexpensive audio processor contains 6-channel individual channel attenuators, a 3-way tone control system for front-end speakers, and a 3D audio simulation system.

October 24, 2022 by Dilshan Jayakody

Arduino hearing test device - Audiometer

An audiometer is a machine used for evaluating hearing acuity.

October 22, 2022 by Mirko Pavleski

LoRa-based tree poaching detector using Arduino

Tree poaching detector using Arduino UNO, LoRa Module with PIR sensor, Vibration sensor, and Sound sensor

July 31, 2022 by Ajanth Badiger

Simultaneous Dual Motor Control

This project describes the HVPAK configured as a controller for two brushed DC motors with independent control.

July 14, 2022 by GreenPAK™ Family of Integrated Circuits

CityGuide: Build a Digital City Tour Guide Device

Sightsee at your pace. Just plug in your headphones and go.

June 12, 2022 by Andrei Florian

DIY Arduino Audio Spectrum Analyzer on VFD Display

A spectrum analyzer is a measurement tool that displays real-time frequency analysis of incoming audio signals.

May 21, 2022 by Mirko Pavleski

DIY Arduino Voice Controlled Robot

Motions can be controlled by the user by giving specific voice commands.

May 07, 2022 by Mirko Pavleski

DIY Super Simple Sensitive Metal Detector

Extremely simple Metal Detector whose making requires only one cheap integrated circuit TL084.

April 30, 2022 by Mirko Pavleski

DIY Arduino VFD display 20x2 VU (Volume Unit) Meter

How to make a VU meter with 38 bars per channel on a modified 20x2 VFD display.

March 05, 2022 by Mirko Pavleski

DIY Wio Terminal Spectrum Analyzer (Arduino IDE)

How to connect and install this small but powerful device on Arduino IDE, as well as the basic steps on how to upload a program to it.

January 29, 2022 by Mirko Pavleski

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ESP32 Internet Radio, MP3 Player , and Alarm Clock

Linear Scale ТЕА5767 FM Radio on ili9341 TFT Display

6-Channel Speaker Selector

DIY Simple PCL82 Low Voltage (12V) Tube Amplifier

Trio JR-500S Ham Radio Receiver: a Review

5.1 channel analog audio processor

Arduino hearing test device - Audiometer

LoRa-based tree poaching detector using Arduino

Simultaneous Dual Motor Control

CityGuide: Build a Digital City Tour Guide Device

DIY Arduino Audio Spectrum Analyzer on VFD Display

DIY Arduino Voice Controlled Robot

DIY Super Simple Sensitive Metal Detector

DIY Arduino VFD display 20x2 VU (Volume Unit) Meter

DIY Wio Terminal Spectrum Analyzer (Arduino IDE)