红外遥控 在我们现实生活中比较常见，家庭各种遥控器大部分都是红外遥控。红外遥控是通过控制脉宽（高低电平的时间）来实现通信的，只是它是通过红外无线信号建立通信链路（红外遮挡了就不行，但可反射）。

You only really need two data wires to transfer a ton of data. Standards like UART, USB2, I2C, SPI, PS/2, CAN, RS232, SWD (an interface to program MCUs), RS485, DMX, and many others, all are a ...

As for UARTs, the Raspberry Pi’s one-and-a-half UART interface has long been an issue in robotics and home automation applications. With a slew of devices like radio receivers/transmitters ...

The P42 Pico2 M.2 may look like an M.2 module, but it's actually a Raspberry Pi RP2350 development board in M.2 2230 form ...