The SparkFun EKMB1107112 PIR Breakout is a passive infrared (PIR) sensor that excels in detecting motion within a small area around the sensor. This PIR sensor is equipped with a Panasonic EKM-series PIR sensor and is optimized for detecting small movements, making it ideal for battery-powered applications due to its incredibly low standby current consumption of 1µA.
What sets PIR sensors apart is their ability to monitor for infrared light from objects within their field of view. They don't provide specific distance data, but they activate their signal when motion is detected within their sensing area. This makes them perfect for applications such as automated on/off lighting control, home and building automation for energy saving, security, appliances, and IoT.
The SparkFun EKMB1107112 PIR Breakout features Panasonic's low-profile PIR motion sensors, which are only 10.9mm high compared to the standard 14.4mm. This compact design makes it ideal for space-constrained designs. The sensor consists of a 10.4mm diameter lens that creates various detection zones, an optical filter to block non-infrared light, pyroelectric sensing elements, electromagnetic shielding for all circuitry, and an impedance converter to produce an electrical signal. The PIR sensor provides a digital output across 32 zones at a 5m detection distance and a 90° x 90° detection area.
Please note that the sensitivity of passive infrared sensors can be influenced by environmental conditions, so it is recommended to conduct a performance evaluation test under representative conditions.
Features of the SparkFun EKMB1107112 PIR Breakout include an operating voltage of 2.3V to 4.0V, a standby current consumption of 1µA, a lens diameter of 10.4mm, a lens height of 10.9mm, a 5m detection distance, and a 90° x 90° (±45°) detection area.
The package also includes a schematic, Eagle files, board dimensions, a hookup guide, a Panasonic PIR Motion Sensors product brief, an EKMB1107112 spec sheet, and a GitHub Hardware Repo.