Audio player powered with Siemens SDI TAPAS, a 48V GaN (Gallium Nitride) based three phase community inverter board with onboard filters.
Control the classic General Instrument SP0256-AL2 speech chip and AY-3-8910 sound generator with a Raspberry Pi and this Python library.
Use Tessel with Google Compute Engine GPU instance running Darknet YOLO via a Node.js server to perform multibox detection over websockets!
Learning braille with the BraillePi and a refreshable braille-display attached is easy and fun at home or at school.
I2C Encoder V2 is a tiny smart board for connecting multiple rotary encoders on the I2C bus. It supports also the illuminated RGB Encoder.
A simple Stereo VU (Volume Unit) meter that represents the intensity of an audio signal using a series of bars. VFD Display type is GP1287.
As discussed in my ongoing series of sound board experiments (most recently with the Adafruit Sound FX Board), I have been on a quest.
An Electret Microphone Preamplifier that is a condenser mic along with a single transistor amplifier.
In this tutorial we will learn how to make a Volume or Speed analog meter using the OLED display and Arduino. Watch the Video
This prototype was made as an indicator of the presence of rice pests (birds).
Protection from COVID 19
LDR senses the laser and moves a stepper, so we can control a gate from a long distance inside the farm.
Interface a Passive Buzzer playing a full song with a Liquid Crystal Display!
With this project you can play any sound from your SD card on your audio system. Only wire you will need is 3.5mm jack.
I wanted an interactive Christmas sweater this year, and finally got it pulled together with NeoPixels and a Flora Bluefruit LE.
Hamparsum Note Convertor system which has historical importance is taken with Pcam5c and converted into current note system.
Unlike other external wired speaker connections to the micro:bit, the BoomBit is a screwable speaker to the micro:bit making it pretty loud.
A Spectrum Analyzer using a 16x16 WS2812B LED matrix. It's built using ESP32 module and fully 3D printed case.
Here is the story behind homemade amplifier.
This guide will show you how to install Moonlight for Raspbian and configure it for your JustBoom to stream games from your PC.
Presented here is the Guitar Amplifier. The best part of this project is that it is recycled and portable.
Design a simple IR audio link circuit which is used to transmit audio signals wirelessly.
I made this transistor based stereo preamplifier board to control the volume, bass and treble of my previous build TDA2030 amplifier.
A proof of concept to detect gunshot sound for first responders
