Simplifying Embedded Systems: Learn, Innovate, Consult

ADC Interview Questions

An Analog-to-Digital Converter (ADC) converts analog signals, like voltage or current, into digital data for processing by microcontrollers or computers. It samples the input signal, quantizes it into discrete levels, and encodes it in binary form. A...

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What is STM32?

The STM32 family of microcontrollers, developed by STMicroelectronics, has become a leading choice in the embedded systems world. These 32-bit microcontrollers are based on the ARM Cortex-M architecture, known for their versatility, performance, and ...

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Reverse a hex number in C

Reverse a hexadecimal number like 0x12345678 into 0x78563412 by reversing its bytes (not just the bits or nibbles)

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Big Endianness vs Little Endianness

Little-Endian: Stores the least significant byte (LSB) first at the lowest memory address. For example, 0x12345678 is stored as 78 56 34 12. This format is common in x86 architectures. Big-Endian: Stores the most significant byte (MSB) first at the ...

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What is Endianness?

Endianness is a term used to describe the order in which a sequence of bytes is arranged into larger numerical values when stored in computer memory. Specifically, it determines how multi-byte data types (such as integers or floating-point numbers) a...

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Volatile Keyword In C

The volatile keyword in C is used to inform the compiler that a variable's value may change at any time, without any action being taken by the code in which it appears. This is crucial when working with hardware registers, memory-mapped I/O, or varia...

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XMacro in C

X-macros are a powerful technique in C programming that leverages the C preprocessor to manage repetitive code patterns more efficiently. This technique can simplify the maintenance of code that has repeated structures, such as large lists of similar...

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Model Car To RC Car Conversion

Discover the exhilarating world of RC car conversion as we delve into the step-by-step process of transforming model cars into remote-controlled wonders. From selecting the right model to installing the necessary components, this guide covers everyth...

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What is ISR?

Interrupt Service Routine (ISR) is a specialized function or routine that is called when an interrupt is triggered by a hardware device. When a hardware event occurs, like a timer reaching a specific value or a button being pressed, it sends an inter...

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SPI vs I2C

SPI (Serial Peripheral Interface) is a full-duplex protocol with separate data, clock, and select lines, offering faster communication at short distances, suitable for high-speed devices like sensors and displays. I2C (Inter-Integrated Circuit), a ha...

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CAN Interview Questions

CAN bus, or Controller Area Network bus, is a robust vehicle bus standard designed for communication between microcontrollers and devices within a vehicle without needing a host computer. It's used in automotive systems because it allows for reliable...

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Microcontroller vs Microprocessor

Microcontrollers are integrated circuits with a processor, memory, and peripherals on a single chip. They excel in dedicated tasks like embedded systems, due to low-power optimization and compact size. Microprocessors, on the other hand, serve as the...

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