基于DS1302和Attiny13的LED定时调光器设计

Design of LED Timing Dimmer Based on DS1302 and Attiny13

在LED路灯控制系统中常需要定时控制,而其中定时器的设计至关重要。通过对比,本文采用DS1302这款高性能、低功耗的RTC时钟芯片。本设计中介绍了整套定时器系统的结构,给出了Attiny13和DS1302接口电路以及软件程序,同时对DS1302烧写实时时间的模块进行软硬件部分的设计。整套系统通过LED路灯的定时开关和分时PWM调光达到节能的目的。

It is often need timing control for a LED streetlight control system. In this case the design of a timer is crucial. By comparison we choose DS1302, a high-performance and low-power real-time clock chip for this work. In this paper we introduce the structure of the whole timer system, and design the interface circuit of Attinyl3 and DS1302, and the program in Attinyl3. The paper also shows the hardware and software design of DS1302 programming real-time module. Because of this timing system, the LED street lamp may turn on-and-off and PWM dimming at pre-set time, the entire system achieves the purpose of energy saving.