Engineer Sergii Zadorozhnyi website
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The IS31FL3197 4-channel LED driver is very functionality controller of RGBW LEDs. Its detail description see in the datasheet of it. But it’s futile idea to seek for initialization procedure example there. In order to initialize the IS31FL3197 LED driver you need to do next sequence of steps described following.
High-fidelity Amplitude Detector with Negative Feedback
Saturday , 12, October 2019 Radio, Solutions Leave a commentThis proposed high-fidelity amplitude detector design resulted from another use of the class B push-pull amplifier. The extremely low harmonic distortion produced by such an amplitude detector is the result of the high linearity achieved through negative feedback.
RF Signal Generator as Arduino Uno Expansion Board
Saturday , 8, June 2019 Measuring, Radio Leave a commentIf You need for the RF signal source, proposed RF Signal Generator, made as Arduino Uno expansion board, can help out. The RF Signal Generator shield, designed with Direct Digital Synthesis (DDS) IC, is installed into Arduino Uno board directly, eliminating the very possibility of error when connecting such devices with wires.
JButton Button: Repeating Action while Holding It Pressed
Friday , 15, February 2019 Software Leave a commentNow the JButton element of graphical user interface (GUI) from the Java’s language Swing Visual Components Library, when held pressed, triggers a multiple repetition of the same action as when it was clicked once. You can include a ready-made class that inherits from JButton in your Java project and simply use it.
Interfacing with Ultrasonic Ranging Module HC-SR04 via One Signal Line
Tuesday , 4, April 2017 Measuring, Software, Solutions Leave a commentTo connect the HC-SR04 ultrasonic ranging module to microcontroller (for example, Arduino UNO), four wires are usually required. But while the Vcc and GND wires are necessary, the Trig and Echo wires can be “combined” into one with a simple circuit. The software to control the HC-SR04 ultrasonic ranging module via one signal line see […]
Effective Length of Receiving Magnetic Loop Antenna
Part 3: Resonant Loop Antenna
Monday , 4, July 2016
Radio
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A loop antenna, supplemented with a variable capacitor to tune into resonance with the received signal, converts the energy of an electromagnetic wave into signal voltage much more efficiently, that is, its effective length is much more than that of an ordinary loop antenna. Here, in the third part, the determining of how much more […]
Effective Length of Receiving Magnetic Loop Antenna
Part 2: Multi-turn Wire Loop Antenna
Monday , 4, July 2016
Radio
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In the first part, the definition of the effective length of the receiving antenna in general was given, the relationship between the electric and magnetic fields induced by the electromagnetic wave at the receiving point was shown, and an expression was obtained for calculating the effective length of the loop antenna, consisting of one turn […]