Low power wireless PIR motion detector for sensor-to-cloud networks

6th November 2018
Alex Lynn

This reference design from Texas Instruments demonstrates how to create an industrial sensor-to-cloud end node capable of connecting to an IoT network gateway and cloud data provider. This design uses Texas Instruments’ nano-power operational amplifiers, comparators, and the SimpleLink ultra-low-power Sub-1 GHz wireless microcontroller (MCU) platform.

This demonstrates an ultra-low-power sensor-to-cloud motion detector, leading to extremely long battery life and no required wiring.


  • Large network-to-cloud connectivity enabling long range, up to 1km (line of sight).
  • IEEE 802.15.4e/g standards-based sub-1 GHz solution with TI 15.4-stack.
  • Use of nano-power analog for ultra-low-power design, resulting in 10-year battery life from single CR2032 coin cell.
  • Low standby current of 1.65 μA (PIR sensor remains active in standby).
  • Interrupt driven sub-1 GHz wireless communication of motion for increased power savings.
  • Motion sensitivity up to 30 feet.

To find out more, click here.

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