Introduction to Signals and Systems Analysis
https://www.electronics-lab.com/article/introduction-to-signals-and-systems-analysis/
What is a Signal? One of the definitions of ‘signal‘ in the Merriam-Webster dictionary is: “A detectable physical quantity or impulse (as a voltage, current, or magnetic field strength) by which messages or information can be transmitted from a source to a destination.” A signal is simply a function, i.e., a mathematical relationship in which […]
ApplePi DAC Audio HAT Add-on For The Raspberry Pi Features 24-bit DAC And A 128dB SNR
https://www.electronics-lab.com/73571-2/
Orchard Audio quickly exceeded its $5K Kickstarter goal for its ApplePi DAC HAT board, which it is promoted as “the most advanced and highest performance sound card hat for the Raspberry Pi.” You can order the add-on board from May 13 starting at $175. Options include a $5 stacking header and a $25 5.25V, 3A power supply. The ApplePi […]
Fast Single-Pixel Camera
https://www.electronics-lab.com/fast-single-pixel-camera/
Compressed sensing is an new computational technique to extract large amounts of information from a signal. Researchers from Rice University, for example, have built a camera that can generate 2D-images using only a single light sensor (‘pixel’) instead of the millions of pixels in the sensor of a conventional camera. This compressed sensing technology is […]
STEP/DIR SIGNAL TO CW/CWW SIGNAL CONVERTER FOR CNC & MOTION CONTROL SYSTEMS
https://www.electronics-lab.com/stepdir-signal-cwcww-signal-converter-cnc-motion-control-systems/
Simple Circuit converts Step/Dir. signal into to double drive CW/CWW Pulse, Mach3 and few Hobby CNC software’s provides Step/Direction pulse output to drive stepper motor drivers. Various AC servo works with double CW/CCW pulse. This circuit is solution to interface such AC CW/CCW pulse based driver with Mach3 or other CNC software’s. Circuit designed around […]
Understanding bioelectricity
https://www.electronics-lab.com/understanding-bioelectricity/
by Maurizio @ dev.emcelettronica.com: Our body is built with biological tissue. The tissue that can generate or detect bioelectrical signals is called excitable tissue. Some examples of this tissue (and its cells) are: neurons and muscular tissue. Neurons are responsible of transmitting the excitatory bioelectrical signal to another neuron (forming nerves) or to a muscle tissue, […]
Signal Generation with MATLAB. Example of DTMF in telephony
https://www.electronics-lab.com/signal-generation-with-matlab-example-of-dtmf-in-telephony/
by Maurizio @ dev.emcelettronica.com: In mathematics a signal is a real function of a real variable f(t). In electronics it represents the evolution of a voltage (or a current) over the time and depends on the performances of the stage of the amplifier. Through a memory buffer, samples move to a digital-to-analog converter that produces a […]