Microprocessor circuit with HT1621B display system
Source: InternetPublisher:桂花蒸 Keywords: Microprocessor display system HT1621B Updated: 2020/08/16
Shown is a liquid crystal display and drive circuit controlled by a microprocessor. HT1621B is the driving circuit of the LCD display.
The display content and working status of the microprocessor are sent to the display driving circuit through the data line (DATA) and the control line (cs, RD, WR). The display
driving circuit converts the display content into COMO~ The control signals of COM3 and SEGO-SEG31 electrodes are added to the pins of the LCD screen.
When the working state changes, HT162, IB also outputs a prompt sound to the buzzer.
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