TI provides a board portfolio of mmWave radar device for different use scenarios. The key parts for industrial applications are IWR6843/AOP and IWRL6432/AOP.

IWR6843/AOP focuses on high performance applications. IWR6843/AOP supports 3 transmitter and 4 receiver antennas. IWR6843AOP has 1-patch antennae on package (AOP). So, no external antennas are needed for layout simplification and cost saving. IWR6843/AOP can track up to 10 people with 85% accuracy and can detect range up to 100 meters. Fluent classification and application are fulfilled on IWR6843/AOP, like human fall down detection.

Compared to IWR6843/AOP, IWRL6432/AOP focuses on low power consumption and low-cost applications. supports two transmitters and 3 receiver antennas. IWRL6432AOP also has 1-patch antennae on package (AOP). IWRL6432/AOP can track up to 5 people with 85% accuracy and can detect range up to 20 meters. IWRL6432/AOP has a high-performance Cortex M4F 160MHz MCU and an FFT CFAR-CA detection 80MHz Radar hardware accelerator. Cortex M4F MCU supports AI algorithm designs, such as tree waves and pets in area filtering out.

So, for most residential homes the low cost and power IWRL6432 is a preferred design to utilize the additional technology benefit. The small size and no external need of antenna makes IWRL6432AOP to be installed in compact mechanical housing and no open window is shown on the thermostat surface.