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...
**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 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.
This is a small pcb that is designed to be used on an electric go-kart to display a stopwatch, motor RPMs, and cart speed as well as record this data on an SD card with a time stamp for analysis. The project is Arduino based and is ran off of 7-59 VDC or directly from a 5V source through any of the 5V or VIN pins on the data logger shield (this is not a protected input). It is designed to have w...
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: