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SBSomnath Babu N Rbeyondbits.hashnode.devJun 13 · 6 min read

SPI Explained Beyond MOSI and MISO

Embedded Systems Fundamentals #2 Most engineers learn SPI through a simple diagram: Master ---- Slave MOSI MISO SCLK CS A transfer begins. Bytes move. The transfer completes. Simple. But inside the

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Aampheoampheoelectronic.hashnode.devDec 22, 2025 · 1 min read

What pins are used for SPI on STM32?

On STM32 there isn’t one single “SPI pin set” across all chips. SPI pins depend on the exact STM32 family/package and the pin alternate-function mapping. But the SPI signals are always the same: SCK (clock) MOSI (master out) MISO (master in) NSS/...

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Aampheoampheoelectronic.hashnode.devJul 10, 2025 · 2 min read

How to interface various IMU sensors with STM32 via I2C or SPI?

Using IMU sensors (Inertial Measurement Units) with STM32 microcontrollers is a common practice in robotics, drones, motion tracking, and navigation systems. Here’s a practical guide on interfacing various IMU sensors with STM32 via I2C or SPI, and h...

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Aampheoampheoelectronic.hashnode.devMay 7, 2025 · 3 min read

What are common communication interfaces integrated into SoCs?

Modern Systems-on-Chip (SoCs) integrate various communication interfaces to enable connectivity with peripherals, sensors, memory, and other devices. Below is a breakdown of the most widely used interfaces, categorized by their applications. 1. High...

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Aampheoampheoelectronic.hashnode.devApr 22, 2025 · 3 min read

What are the differences between I2C and SPI protocols in Arduino?

Here’s a clear, technical comparison of I2C and SPI protocols for Arduino projects, including pros/cons and typical use cases: 1. Key Differences FeatureI2C (Inter-Integrated Circuit)SPI (Serial Peripheral Interface) Communication2-wire (SDA ...

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Aampheoampheoelectronic.hashnode.devApr 7, 2025 · 4 min read

How do you implement standard communication protocols (SPI, I2C, UART) in an FPGA?

Implementing communication protocols in FPGAs requires understanding both the protocol specifications and FPGA design techniques. Here's how to implement these three common protocols: 1. UART Implementation Core Components: Baud rate generator: Crea...

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DDhruv para.hashnode.devApr 21, 2024 · 5 min read

Understanding various communication protocols like UART, SPI, CAN and I2C via ATMEGA328-P and NODEMCU (esp-8226)

Recently while working on a project utilizing Arduino and DHT11 sensor I faced a set of challenges which led me to dive deeper into the world of communication protocols, particularly SPI, I2C, and CAN bus modules. Despite the initial simplicity of th...

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MGMithilesh Gaikwadesyinsights.hashnode.devFeb 6, 2023 · 6 min read

SPI Protocol

SPI (Serial Peripheral Interface) is a synchronous serial communication protocol used for short-distance communication, primarily in embedded systems. It operates in full-duplex mode, allowing data to be transmitted and received simultaneously. The p...

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SPI Explained Beyond MOSI and MISO

What pins are used for SPI on STM32?

How to interface various IMU sensors with STM32 via I2C or SPI?

What are common communication interfaces integrated into SoCs?

What are the differences between I2C and SPI protocols in Arduino?

How do you implement standard communication protocols (SPI, I2C, UART) in an FPGA?

Understanding various communication protocols like UART, SPI, CAN and I2C via ATMEGA328-P and NODEMCU (esp-8226)

SPI Protocol

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