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SparkFun PIR Breakout - 1uA (EKMB1107112)

Passive Infrared (PIR) sensors are great for detecting motion in a small area around the sensor. The 1µA SparkFun EKMB1107112 PIR Breakout is a simple breakout equipped with an EKM-series PIR sensor from Panasonic®. The 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 (1µA).

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.

Get Started with the SparkFun PIR Breakout Guide

  • Operating Voltage: 2.3V to 4.0V
  • 1uA standby current consumption
  • Lens Diameter - 10.4mm
  • Lens Height - 10.9mm
  • 5m detection distance
  • 90° x 90° (±45°) detection area

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SparkFun PIR Breakout - 1uA (EKMB1107112) Product Help and Resources

SparkFun PIR Breakout Hookup Guide

March 25, 2021
Get started with these Panasonic EKM-Series PIR breakouts following this Hookup Guide.
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Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

1 Soldering

Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

3 Programming

Skill Level: Competent - The toolchain for programming is a bit more complex and will examples may not be explicitly provided for you. You will be required to have a fundamental knowledge of programming and be required to provide your own code. You may need to modify existing libraries or code to work with your specific hardware. Sensor and hardware interfaces will be SPI or I2C.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

3 Electrical Prototyping

Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
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Comments

Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • mgrusin / about 2 years ago * / 1

    Is there a difference in sensing performance between the 1uA and the 170uA parts?

    EDIT: There is some info on this in the hookup guide, though the specs for the two parts seem very similar.

Customer Reviews

5 out of 5

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Works great with TrigBoard!

by verified purchaser

I got this coupled with the TrigBoard, powered from two AAA alkaline batteries. Will work up to several months depending on use (i.e. less than one detection per day). Since with the Trigboard each detection triggers an internet connection over WiFi and HTTP request, battery life will shorten significantly if installed where detections are very frequent.