Ultra Low-Power Wireless PIR Motion Detector for Cost-Optimized Systems Reference Design
Description
This reference design uses a quad-channel nano-power operational amplifier and the SimpleLink™ ultra-low power 2.4-GHz wireless microcontroller (MCU) platform to demonstrate a low-power cost-optimized wireless motion detector implementation. These technologies lead to an extremely long battery life: up to 10 years with a standard CR2032 lithium ion coin cell battery: which could be used for applications including motion detection or lighting control through occupancy detection. The PIR sensor has sensitivity of up to 30-feet with shutdown current of 2.16 µA. The design guide includes techniques for system design: detailed test results and information to get the design up and running quickly.
Features
- Use of nano-power analog for ultra-low power design resulting in up to 10-years battery life from a single CR2032 coin cellLow shutdown current of 2.16 uA (PIR sensor remains active in shutdown)Ultra-low active state current due to low active processor and radio transmit currents (1.57 mA for 56.66 ms)Interrupt-driven Bluetooth® smart wireless communication of motion for increased power savingsMotion sensitivity up to 30 feet
Applications
- Wireless environmental sensor
- Video doorbell
- Thermostat
- Electronic smart lock
- Occupancy detection (people tracking
- people counting)
- Lighting sensor
- Thermal imaging camera
- Analog security camera
- IP network camera
- Motion detector
- Wireless security camera
Product Categories
- Amplifiers