SparkFun PIR Breakout - 1uA (EKMB1107112)

The SparkFun EKMB1107112 PIR Breakout is a compact and efficient Passive Infrared (PIR) sensor that specializes in detecting motion in a small area around the sensor. Equipped with an EKM-series PIR sensor from Panasonic^®, this product is designed to offer motion-sensing solutions for battery-powered applications, thanks to its extremely low standby current consumption of 1µA.

The SparkFun PIR breakout doesn't provide specific distance data but instead monitors for IR light from objects within its field of view. It activates its signal when motion is detected in its sensing area, making it ideal for applications like automatically turning devices on when motion is detected. It can be used in a wide range of applications such as home and building automation for energy saving, automated on/off lighting control, security, appliances, and IoT.

This PIR sensor from Panasonic is low-profile, measuring only 10.9mm, as opposed to the standard 14.4mm height, offering space savings for constrained designs. It comprises a lens to create various detection zones, an optical filter to block non-infrared light, pyroelectric sensing elements, electromagnetic shielding to all circuitry, and an impedance converter to produce an electrical signal. The sensor offers digital output across 32 zones at a detection distance of 5m with a 90° x 90° detection area.

It's important to note that the sensitivity of passive infrared sensors can be influenced by environmental conditions. Therefore, it is recommended to perform a performance evaluation test under representative conditions.

Key features of the SparkFun EKMB1107112 PIR Breakout include an operating voltage of 2.3V to 4.0V, a standby current consumption of 1uA, a lens diameter of 10.4mm, a lens height of 10.9mm, a detection distance of 5m, and a 90° x 90° (±45°) detection area.

For more information and guidance on how to use the SparkFun PIR Breakout, various documents are available including a schematic, Eagle files, board dimensions, a hookup guide, a datasheet for Panasonic PIR Motion Sensors, an EKMB110711x spec sheet, and a GitHub Hardware Repo.