•Канал на Ютуб / Channel on Youtube: https://www.youtube.com/channel/UCyVzmkYMe5pQK0HMWgyaE9Q?view_as=subscriber
•Видио на Ютуб / Vidio on Youtube: https://youtu.be/AejZOrpN9Ko
•Схема проекта / Project circuit: https://easyeda.com/romans.dodu/laser_spirograph_2019
•Архив с файлами лазерного спирографа ссылка / Archive with laser spirograph files link: https://drive.google.com/open?id=1GjJvR0MF...
# UM66T Melody Generator
An UM66T generates various Melody Tunes when triggered which can be used in car/scooter reverse signals, doorbells and toys.
**Order PCB:** [PCBWay](https://www.pcbway.com/project/shareproject/Musical_Bell.html)
## Electronic Components
| Qty | Comp...
**This is an experimental electronic circuit, without any warranty.**
Single channel 2-way 24 dB/oct Linkwitz-Riley active crossover.
Crossover frequency: 2.9kHz
PCB dimensions: 60mm x 100mm
Equalizer characteristics - simulation
I always wantedo create a color organ, and recently I started learning about electronics.
I designed this circuit, but never tested it yet (waiting for parts to arrive).
If you have advise, please feel free to contact me here: https://goo.gl/xBLJye
It is possibe that I designed something wrong, so if you find any mistake, please contact with me. Thanks for your help.
The project describes a compact DIY dual H-bridge using pairs of P and N channel MOSFET's. The H-bridge is built for Arduino, but can be used for Raspberry Pi as well. H-Bridge supports PWM.
The PCD is made in a way to assemmble it using prototyping board, I recommend to use 1 layer board. LED's are to indicate wheh any of P-channel mosfets is active and visualase output's state.
Advantage of pro...
**Stun gun** is a device which generates high voltage at it’s output by taking low voltage as input. Concept of this device is based on High volt inverter. Here we are building this **Stun Gun circuit on PCB** and below you can find the required circuit diagram and PCB layouts to build this stun gun yourself.
For complete details about the circuit with instructions on how to design this circuit...
**ECG Arduino shield**
it is the electrical activities of the heart. During each heartbeat, a healthy heart has an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibe...
Esquema eletrônico do extensor de corrente para ser usado no hotbed ou hotend. Montei, testei e está funcionando muito bem.
Para quem se aventurar a projetar a PCB, leve em conta que estamos tratando com correntes eletricas altas, então cuide de adotar trilhas grossas para fonte e a carga.
A basic lab/bench power supply that I'm designing from bits and pieces around the web. One of my goals is to build this PSU with as many recycled components as possible.
Sources I've drawn from:
Apesar do nome estranho, o projeto possui as funcionalidades do título.
A primeira é um "**caçador de vampiros**" de energia (baseado no projeto TOMADA INTELIGENTE do Br-Arduino.org com uso do Attiny85), que consiste em eliminar o consumo de energia dos equipamentos em espera (stand by). Diferente do Tomada Inteligente, este não faz uso de uma régua, mas sim de uma caixa que seria o "interrupt...
**EOG Arduino shield**
It is an electrical representation of the eye ball movement. Assuming that the resting potential is constant, the recorded potential is a measure of the eye's position, the eye acts as a dipole in which the anterior pole is positive and the posterior pole is negative. Accordingly, we have horizontal EOG (HEOG) where the...