Module introduction: The color of an object is usually seen. In fact, the surface of the object absorbs part of the colored components in the white light irradiated on it, and the other part of the colored light reflected is reflected in the human eyes. White is composed of visible light of various ..
PCF8574T IO Expansion ModulePCF8574T is a CMOS circuit, which can realize the remote I / O expansion of most MCU through two bidirectional buses. The device includes an 8-bit quasi bidirectional port ("quasi" means "basically", that is, "quasi bidirectional port" is not a real bidirectional por..