1. Power saving (because the liquid crystal itself does not emit light, the power consumption is low)
2. Can only be driven by low-frequency AC voltage, DC will damage the LCD
3. Types: segment LCD, c...
Firstly, the XML standard and its technical characteristics are introduced and analyzed, and then the development and current situation of embedded system network application are discussed. On this ba...
【Abstract】The working principle of microwave spectrum analyzer (HP859X series) is introduced, and the basic calibration procedure and amplitude calibration data table are given, as well as some common...
As shown in Figure 1, are unused pins configured as "three-state input input" or "three-state input plus weak pull-up"? In Figure 2, why are these dual_purpose_pins set to "use as regular IO"? They ar...