方案设计图：

方案关键器件表：

类型	型号	厂商	说明
MCU	R8C/3x Series	Renesas	1.8 V to 5 V operation, 16-bit CPU
CMOS op-amp	HA1630xxx Series	Renesas	Low power consumption
Reset IC	RNA519xx Series	Renesas	Variable detection voltage
Iluminance Sensor	PH5501A	Renesas	illuminance level: 1 to 10,000 lx; analog linear output

方案描述：

Renesas’ R8C/3x Series of microcontrollers provide multiple inputs and outputs at low cost and are ideal for flexible product configurations. They combine multifunction timers, multichannel A/D converters, and low-power operation suitable for applied sensor applications. Applied sensor technology is now used in a variety of electronic products. This technology is essential to achieving high-performance “intelligent” functions. In recent years, applied sensor technology has gained increasing popularity from an eco-friendly standpoint for deducing power consumption. By monitoring peripheral activities and providing fine-grained control of product operation, overall power consumption can be significantly reduced. The importance of such functionality continues to grow. Systems employing a variety of sensors require multichannel A/D converters and timer inputs in order to control the many sensors deployed. In addition, device control is essential, for example to operate motors linked to sensors.