电子水位计中段式液晶驱动的设计与实现

Design and implemention of segment liquid crystal drive in electronic water gauge

根据段式液晶的显示原理与电气特性,结合微控制器STC12le5a60s2,详细介绍一种通过利用单片机IO口和分压电阻的作用,实现单片机IO口直接驱动段式液晶的显示方法,同时给出了硬件电路设计及软件实现方法,实现段式液晶显示无需驱动芯片驱动,减少了产品液晶驱动器的费用。该方案具有成本低廉,性能稳定,系统功耗较低等优点,为单片机在仪器仪表等需要段式液晶显示领域提供一种简单实用的方法。

Based on the principle and electrical characteristics of the monitor segment liquid crystal, combine with the microcontroller stc12le5a60s2 ,introduced a single-chip IO port by using action and pull-up resistor voltage divider to achieve single-chip IO portly drive the segment liquid crystal display method, and gives the hardware design and software implementation to achieve the LCD drive without driver chip, reducing the product-driven costs. this method has low cost, stable performance, present a simple and practical way in the instruments that require segment liquid crystal .