Smart Electricity Meters

Electricity Meters measure the kilowatt hours consumed, the power factor of the load and the time of the electricity consumption to support multi-rate metering. The communications system in these meters requires reliability and range, which Silicon Labs provides with its EZRadioPRO embedded wireless receivers, Si1000 Wireless MCUs,  C8051F900 ultra low power MCUs, Si84xx digital isolators and CP2400 LCD Controllers.

 
When metering applications use an LCD as part of a user interface the CP240x LCD controller, a standalond, fixed-function LCD driver, generates drive signals for any static or multiplexed LCD. This can easily be added and connected to the Si100x/1x wireless MCU though the SPI or I2C interface and can control up to 128 segments (CP2400/1) or 64 segments (CP2402/3).  This provides a low power, low cost upgrade path. LCD device drivers that are completely compatible with the Si100x/1x accelerate the product development cycle.