The EasyEDA "Tesseract" DIY Guitar Practice Amplifier is an LM386 based low power amplifier designed to deliver up to about 500mW into an
8 Ohm speaker when run from a 9V battery.
**Tesseract can be heard on YouTube here:**
The design given here - which includes a complete PCB design and Bill of Materials - is highly flexible and allows the several options...
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.
THIS WORKS AS A REGULAR ARDUINO. ALL U NEED TO DO IS SOLDER THE COMPONENTS AND UPLOAD THE CODE USING AN (FT232RL USB TO TTL CONVERTER) MODULE. IF U DONT HAVE IT THEN SEE COPY THIS LINK AND SEE IN GOOGLE,
This afforable Geiger Counter that works as standalone device and also can connect to other external devices (like RaspberryPi/Arduino or other GPIO devices) to send the "clicks" thru GPIO interface.
The Arduino code for the Geiger counter is available here:
- Pin D2 --> Arduino interruption
- Pin D7 --> Buzzer
- Pin D8 -->...
**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
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...
The Arduino platform has become quite popular with people just starting out with electronics. It is an open-source hardware design, based on microcontroller board designs and provide sets of digital and analog I/O pins that can be interfaced to various expansion boards ("shields") and other circuits. The boards feature serial communications interfaces, including USB on some models, for loading pro...
**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...
This is a custom - Arduino uno - based circuit.
- Microcontroller: Atmel ATMega328p
- Bluetooth Module: Support HC-06 & HC-05
- Motor Driver IC: Two L293D (up to 4 DC motors or up to 2 stepper motors)
- Servo motor header
- 3 input/output pins (Can be used to connect LEDs or button SWs)
- Programmable header
- Reset button
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.