Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared

2025-04-24

These animated diagrams of signal waveforms in electronic systems help us understand the mechanism of transmission.

1

SPI Transmission

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1 SPI Data Transmission

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.2 SPI Data Transmission (2)

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared

▲ Figure 1.3 SPI Timing Signal

2

I²C Transmission

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared

▲ Figure 1.2.1 I2C Bus and Addressing Method

3

UART Transmission

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.3.1 Debugging MCU via UART on PC

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared

▲ Figure 1.3.2 RS-232 Communication with MCU via Level Converter Chip

4

Infrared Control

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.4.1 Infrared Control Signal is also a Serial Communication Signal

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.4.2 Infrared Signal Reception and Amplification Shaping Circuit

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared

▲ Figure 1.4.3 A Circuit for Controlling a Relay to Feed Fish Using an Infrared Receiver

5

Serial to Parallel Conversion Circuit

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.5.1 Shift Register with Serial Input and Parallel Output

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.5.2 Shift Register Composed of Eight D Flip-Flops

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared

▲ Figure 1.5.4 Serial Transmission Schematic

6

Other Waveform Animations

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.6.1 PWM Control of LED Brightness

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.6.2 PWM Control of LED Brightness

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.6.3 Amplitude Modulation and Frequency Modulation Signals

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.6.4 Phase Modulation Signal

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared — ▲ Figure 1.6.5 Square Wave Edge Jitter Waveform

Animated Explanation of Common Embedded Communication Protocols: SPI, I²C, UART, Infrared

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