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Talking Tom
Jun 01,2026
Talking Tom: Bare-Metal Voice Modulator & Raw SPI Flash Streamer1. Project OverviewThis project is a high-performance, real-time embedded digital signal processing (DSP) device named "Talking Tom". Built entirely on the 8-bit ATmega328P (Arduino Nano) platform, the system captures live human voice through an electret condenser microphone, saves the raw audio bytes directly into sector addresses on an SD card, and plays the recording back through a power amplifier with a hardware-driven chipm...
2026 KiCad PCB Design Contest DIY Arduino
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Arduino Based Wireless Servo Control PCB
kumari May 29,2026
Project overview This project demonstrates a compact wireless servo motor control system developed using custom PCB boards, HC-05 Bluetooth modules, and embedded microcontroller circuitry. The system was programmed and tested using Arduino IDE and Arduino Uno R4 Wi-Fi during development and communication testing.The project is designed for wireless embedded control applications where commands are transmitted between two PCB boards through Bluetooth communication. One board works as the transmitt...
Arduino IOT WiFi
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solenoid_controller
bliz May 29,2026
this is a small device used to control a solenoid. we made it as part of a research projec t to study the electrical response of piezoelectric crystals when a specific force is applied.we first calibrated the solenoid (find the froce it produces for a given pwm) using a 20kg load cell and HX711 module.then we used this data to produce a function that could convert the speciied force to required pwm. thus the solenoid can apply the force specified. the final device has a 1602 lcd and a 4x4 keypad...
2026 KiCad PCB Design Contest arduino solenoid
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DIY Vintage TV VU Meter with peak indicators
Pavleski May 28,2026
 Some time ago in one of my projects I presented you a way to turn a black and white old mini TV into a Retro Clock. This time I will describe another project with which you can use your old TV and turn it into a beautiful video effect, and that is a full screen Stereo VU meter. Again I will use the Arduino Nano microcontroller and the appropriate library for generating a composite signal. Most often, old TVs do not have a composite input, so we need to modify it in the way descri...
Arduino ESP8266 Audio
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Sensor based Two Relay Controller Card
SS May 26,2026
The Sensor-Based Two Relay Controller Card is a compact and versatile automation solution designed for industrial, commercial, and DIY control applications. The board supports two sensor inputs and independently controls two onboard relays, enabling reliable monitoring and switching operations for a wide range of systems.Built with a robust 7805 voltage regulator, the controller accepts a wide input voltage range, ensuring stable operation even in varying power conditions. Multiple onboard confi...
2026 KiCad PCB Design Contest Arduino DIY
428
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Arduino Hive
Thilak K May 26,2026
DescriptionArduino Hive is a distributed modular automation ecosystem designed around interconnected microcontroller nodes capable of collaborative sensing, processing, communication, and control operations. The platform acts as a flexible embedded framework where multiple Arduino-based subsystems operate together to create intelligent automation infrastructures for robotics, IoT, industrial monitoring, agriculture, smart-home systems, and educational research applications.The architecture is ba...
IOT Embedded Systems Automation
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DIY Tesla Coil based Plasma Rife Machine
Pavleski May 21,2026
 In several of my previous videos, I presented you with different ways to make a Rife Machine, from the simplest with metal electrodes as a medium for the transfer of frequencies, to an advanced Plasma Rife Machine. This time I will stick to the more advanced versions which, like the original device, use plasma as a medium that radiates into the environment. With the previous devices, I mostly used a configuration that consisted of: a carrier signal generator, a modulator, an amplifier...
DIY USB Atmega
1549
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Arduino Water Level Indicator Using Water Level Sensor
Jain May 21,2026
Monitoring water levels in tanks is important for preventing overflow and reducing water wastage. In this project, we will interface a water level sensor with Arduino UNO to create a simple water level indicator system. The project can detect rising water levels and trigger alerts using LEDs and a buzzer.This project is suitable for beginners who want to learn sensor interfacing with Arduino and build practical home automation applications.How Water Level Sensor Works?The water level sensor work...
arduino water level sensor
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Conways Game of Life Arduino Mega Extension
Watson May 20,2026
Ever find an old Arduino Mega in your drawers you're not sure what to do with? Well, now you have your answer! This project is a shield designed to fit onto the Arduino Mega development platform as a decorative conversation piece that plays Conways Game of Life! The shield contains 36 LEDs in a 6x6 grid, as well as a potentiometer input to adjust the speed at which the game is played. I originally got the idea after finding an old Arduino Mega in my dormitory closet for a previous class and tryi...
2026 KiCad PCB Design Contest Arduino LED
507
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Motion‑Activated Automation Board (Arduino Nano + PIR + Servo)
Belinski May 19,2026
This PCB is designed for people who want to add automation to their projects.It provides a protected 12 V‑to‑5 V power stage and works well for Arduino‑based sensing and automation applications.A motion sensor can be connected directly, allowing the system to activate automatically whenever movement is detected.The board is built to remain safe and stable even in less-controlled environments.Standard 2.54 mm headers and clearly labeled connectors make it easy to integrate sensors, switches, and ...
2026 KiCad PCB Design Contest automation Microcontroller
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