基于低功耗PIC单片机中断技术的液位开关设计

Based on low power consumption PIC microcontroller interrupt technology level switches design

分析了液位浮球开关产生抖动的原因和带来的不利影响,并基于中断技术从硬件和软件两个方面给出了对干扰进行防护的方法。实际证明该方法具有很高的稳定性,并满足低功耗要求。

The reason why liquid level switch can cause jitter and the probably infaust effect is analyzed in this paper,and the protection of the disturbance is put forward from the hardware and the software two aspects which is based on interrupt technology.It’s proved that this way has highly stabilizability,and meet the demand for low power consumption.