Digital PIC18F4455 multimeter is nowadays the most used measuring instrument for electrotechnical measurements. For users, the advent of digital multimeters meant above all reliability and instrument for measuring all common electrical parameters. Users’ claims However, this device is constantly growing and with the massive expansion of computer technology begins to be a new requirement to…
Arduino Neopixel Spectrum Analyzer Microphone, Arduino, and LED strip to express the sound with light, together with hardware developer who likes to make physical computing, new media art, and IoT. An Arduino ws2812 8 band led spectrum analyzer was produced. ws2812 LED strip (144 LED / 1M), Arduino pro mini 5V 16MHz, Breadboard, Microphone, 1…
Despite the apparent simplicity, this amplifier showed excellent quality parameters, which allows you to safely rank it as a Hi-Fi equipment. The amplifier has a very pleasant sound in the mid-eighties was patented. Since then, the element base has changed quite a lot and it has been possible to simplify the circuit, preserving the idea…
HI-FI 2 x 80W Power Amplifier on STK442-090 Micro assembly Most radio amateurs can be divided into two categories: supporters and opponents of microcircuit amplifiers. As arguments for using such amplifiers, the former cite the simplicity of the circuit, high reliability and stability of operation due to the high integration of the microcircuit. As a…
Completed class d amplifier project Class d power amp, preamp, vu meter, psu, panel desing. Learn about design of amplifiers in class D. Design amplifier wiring for bass with a power output of about 100 W. Complete the output stage with an active correction preamp with with a three-band equalizer and a switchable center band…
Design of controllable current source, which will be used to control the brightness of the power LEDs. It is intended to use fifteen PWM outputs from Arduino for management of fifteen resources. This application will be used to calibrate the camera. That’s why it is minimum ripple current through the LEDs is required. At the…
Light Activated Switch Circuit. Switches, including those reacting to changes in lighting, are still very popular and practically used by electronics or automation specialists. This time we propose to make a simple light-responsive switch system, but powered directly from 230 V AC. while the assembly diagram in Figure 2. The actuator that powers the light…
EMG Processing Arduino Focused on the design of active hand prosthesis. This work summarizes upper limb anatomy with focus on forearm. Subsequently, it deals with amputation techniques and indications for amputations. The part describing contemporary prostheses is important for the design of active forearm prosthesis, which is described in the third and fourth chapters. The…
The subject of this project is realization of CNC milling machine, designed for production of smaller machines light alloy and PCB components. This will be subject to selection of mechanical components and drive. The mechanical construction should not be too complex due to limited production means, however, a laser cutter is available and the possibility…
The Led Cube project was made of LED cube, one side consisted of eight LEDs, a total of 8 obsahuje = 512 LEDs. By multiplexing always the eight LEDs, any spatial “picture” can be made from luminous LEDs. The cube can be used for aesthetic purposes, presentations, games (eg 3D Snake), etc. A total of…