1. Introduction
There is an increasing desire in the market for a standards-driven, low-cost, and low-power wireless home automation system. For
many entrant systems a smart outlet is usually employed to remotely activate and deactivate the source power feeding into room
lamps, personal fans, and consumer electronics. In addition to home automation, consumers are employing an array of low-cost sen-
sors to further enhance their home automation’s autonomous behavior. Silicon Labs has developed a compact and cost-effective smart
outlet reference design targeted at these applications. This reference design (see the following figure) features Silicon Labs’
EFR32MG1P232F256GM48 ZigBee Pro Wireless Microcontroller (MCU), the Si7021 temperature and relative humidity sensor. and the
Si1141 ambient light sensor. The outlet also features voltage, current, and power measurement capability, as well as current and ther-
mal overload shutdown features. The reference design can be directly integrated into a connected ZigBee home automation applica-
tion, as shown in
Figure 1.2 ZigBee Home Automation with Smart Outlets on page 1
. The reference design comes preprogrammed
and fully functional out of the box. All hardware design files and firmware application source code are available.
Figure 1.1. ZigBee Smart Outlet Reference Design
ZigBee HA 1.2
Gateway
ZigBee
Smart
Outlet
ZigBee
Smart
Outlet
ZigBee
Smart
Outlet
Figure 1.2. ZigBee Home Automation with Smart Outlets
UG171: ZigBee
®
Smart Outlet Reference Design (RD-0051-0201) Kit User's Guide
Introduction
silabs.com
| Smart. Connected. Energy-friendly.
Rev. 0.1 | 1
