Placement new is a variation new operator in C++. Normal new operator does two things : (1) Allocates memory (2) Constructs an object in
Qt Meta Type
The QMetaType class manages named types in the meta-object system The class is used as a helper to marshall types in QVariant and in
Preprocessor directives
Preprocessor directives are lines included in the code of programs preceded by a hash sign (#). These lines are not program statements
Qt Objects
The QObject class is the base class of all Qt objects Q_OBJECT Macro The Q_OBJECT Macro is probably one of the weirdest things to
Basic Engineering Circuit Analysis
Problems
Resonance Circuits
Resonance in AC circuits implies a special frequency determined by the values of the resistance , capacitance , and inductance . For series resonance the condition of resonance is straightforward
Inductive Proximity Sensor
A inductive proximity sensor can detect metal targets approaching the sensor, without physical contact with the target. Inductive Proximity Sensors are roughly classified into
Problems 4
Problem 1 Problem 2 Problem 3
Rvalue References
Understand std::move Because std::move does nothing but cast its argument to an rvalue, there have beensuggestions that a better name for it
platformio configuration file
platformio.ini (configuration file) Each PlatformIO project has a configuration file named platformio.ini in the root directory for the project.platformio.ini has sections (each denoted by a [header])
Differences between Synchronous and Nonsynchronous Rectifying DC/DC Conversion
The nonsynchronous rectifying type, which has been in use for years, features a simple circuit for a switching regulator, with an efficiency
ESP32 ADC and DAC
ADC ADC is Non-linear Ideally, you would expect a linear behavior when using the ESP32 ADC pins. However, that doesn’t happen. What
ESP32 Developing Board
power delivery circuit power coming from terminals or from usb 1- in the terminal we use diode D3 to reverse polarity protection
UART Protocol
How UART Works? In UART Serial Communication, the data is transmitted asynchronously i.e. there is no clock or other timing signal involved
PCB (Printed Circuit Board)
Copper and Substrate(core) Solder Mask Silk Screen Copper Weight(thickness) and width more width or weight is useful for more current and low
fan-out , Buffer, Open Collector, and Tri-state
Fan-out Fan-out is a term that defines the maximum number of digital inputs that the output of a single logic gate can feed. Most