下面这些显示电子系统中信号波形的动图，有助于帮助我们理解传输的机理，分享给大家。
The following shows the GIF of the signal waveform in the electronic system, which helps us understand the mechanism of transmission and share it with you.
1、SPI传输
1. SPI transmission
▲ 图1 SPI输出传输
▲ Figure 1 SPI output transmission
▲图2 SPI数据传输（2）
Figure 2 SPI data transmission(2)
▲ 图3 SPI时序信号
Figure 3 SPI timing signal
2、I2C传输
2. I2C transmission
▲ 图4 I2C总线及寻址方式
▲ Figure 4 I2C bus and addressing method
3、UART传输
3. UART transmission
▲ 图5 PC上通过UART调试MCU
▲ Figure 5 Debugging the MCU via UART on a PC
▲ 图6 RS-232通过电平转换芯片与MCU通讯
Figure 6 The RS-232 communicates with the MCU via a level shifting chip
4、红外控制
4. Infrared control
▲ 图7 红外控制信号也是一个串行通讯信号
▲ Figure 7 The infrared control signal is also a serial communication signal
▲ 图8 红外信号接收与放大整形电路
▲ Figure 8 Infrared signal receiving and amplification shaping circuit
▲ 图9 红外接收光电管控制继电器电路
▲ Figure 9 Infrared receiver photocell control relay circuit
5、串并转换电路
5. String and convert circuit
▲ 图10 串入、并出移位寄存器
Figure 10 String in and out shift registers
▲ 图11 由八个D寄存器组成的移位寄存器
Figure 11 Shift registers consisting of eight D registers
▲ 图12 串行传输示意图
▲ Figure 12 Schematic diagram of serial transmission
6、其他动图
6. Other GIFs
▲ 图13 PWM控制LED亮度
Figure 13 PWM controls LED brightness
▲ 图14 PWM控制LED亮度
▲ Figure 14 PWM controls LED brightness
▲ 图15 调幅与调频信号
▲ Figure 15 Amplitude modulation and frequency modulation signals
▲ 图16 相位调制信号
Figure 16 Phase modulation signal
▲ 图17 方波边沿抖动波形
▲ Figure 17 Square wave edge jitter waveform