SparkFun
SparkFun PIR Breakout - 170uA (EKMC4607112K)
Passive Infrared (PIR) sensors are great for detecting motion in a small area around the sensor. The 170µA SparkFun EKMC4607112K PIR Breakout is a simple boa...
Passive Infrared (PIR) sensors are great for detecting motion in a small area around the sensor. The 170µA SparkFun EKMC4607112K PIR Breakout is a simple board equipped with an EKM-series PIR sensor from Panasonic®. The EKM-series PIR sensors are optimized for small movements to offer motion-sensing options for continuously powered applications.
PIR sensors do not return specific distance data but instead monitor for IR light coming from objects in their field of view and will activate their signal when motion is detected in their sensing area, making them perfect for applications such as turning devices on automatically when motion is detected. Applications include home and building automation for energy saving, automated on/off lighting control, security, appliances, and IoT.
Panasonic's low-profile PIR motion sensors (10.9mm versus standard 14.4mm height offer space savings for constrained designs) consist of 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 get an electrical signal. This PIR sensor offers digital output across 32 zones at 5m detection distance with 90° x 90° detection area.
Note: The sensitivity of passive infrared sensors is influenced by environmental conditions, so a performance evaluation test under representative conditions is recommended.
Features:
- Operating Voltage: 2.3 - 4.0V
- 170 µA standby current consumption
- Lens diameter - 10.4mm
- Lens Height - 10.9mm
- 5m detection distance
- 90° x 90° (±45°) detection area
Documents:
- Schematic
- Eagle Files
- Board Dimensions
- Hookup Guide
- Panasonic PIR Motion Sensors - Product Brief
- EKMB110711x Spec sheet
- GitHub Hardware Repo
Videos
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- PIR sensor
- A passive infrared sensor detects changes in heat, usually from a person moving across its view. It matters because PIR sensors are common for lights and alarms, but they can miss people who are present but not moving much.
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SparkFun PIR Breakout Schematic
Schematic · 77.5 KB · Click any page to view full size
Panasonic PIR Motion Sensors Product Brief
Product Brief · 3.0 MB · Click any page to view full size
EKMC460711xK Sensor Datasheet
Datasheet · 633.7 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 469.8 KB · Click any page to view full size
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