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SparkFun PIR Breakout Boards are simple boards equipped with EKM-series PIR sensors from Panasonic®. The Passive Infrared (PIR) sensors are great for detecting motion in a small area around the sensor. These EKMB-series PIR sensors are optimized for small movements to offer motion-sensing options for battery-powered applications due to the very low standby current consumption. The PIR sensors on these breakouts output a digital signal whenever a moving object is detected in the sensing area. That signal can be monitored by a microcontroller to trigger action on a connected device.
These low-profile PIR motion sensors from Panasonic with 10.9mm versus standard 14.4mm height offer space savings for constrained designs. These sensors consist of a lens to create various detection zones, an optical filter to block non-infrared light, and pyroelectric sensing elements. Additionally, electromagnetic shielding to all circuitry and an impedance converter to get an electrical signal are also among the application usages. Typical applications include home and building automation for energy saving, automated on/off lighting control, security, appliances, and IoT.
