SparkFun PIR Breakout Hookup Guide
El Duderino, 
Englandsaurus 
Hardware Overview
In this section we'll cover the characteristics and features of the PIR sensors on these breakouts.
Panasonic EKM-Series PIR Sensors
The EKMC4607112K and EKMB1107112 from Panasonic are low-profile PIR sensors ideal for things like motion-activated lights, cameras or other electronics. Applications include automatic lighting for energy conservation, motion-activated security or trail cameras or maybe something fun like a homemade convenience store chime (complete with a 100th customer celebration!). The EKMC4607112K works best in a continuous power installation and has slightly better sensing performance than the EKMB1107112 which is best suited for battery and low-power installations.
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| SparkFun PIR Breakout - 1µA Front. | SparkFun PIR Breakout - 1µA Back. |
On each breakout we've broken the sensor's three pins (3V3/VDD, Ground and OUT) to a standard 0.1"-spaced PTH header for users to solder to. Take note that the sensors share the same PCB design and the version (1µA or 170µA) is marked by the solder pads "North" of the PIR.
The two PIR sensors have very similar electrical and sensing characteristics with a few specific differences users will want to take note of prior to deciding which sensor is best for their situation. The tables below outline the Electrical and Detection Performance Characteristics to give users a basic overview. For a more detailed look at these two sensors, take a look at their respective specification sheets: EKMC4607112K & EKMB1107112 along with the Panasonic PIR Sensors - Product Brief (EKM-Series sensors are covered on page 8).
| Electrical Characteristics | |||||||
|---|---|---|---|---|---|---|---|
| EKMC4607112K | EKMB1107112 | ||||||
| Characteristic | Units | Min | Typ. | Max | Min | Typ. | Max |
| Operating Voltage | VDC | 3.0 | - | 6.0 | 2.3 | - | 4.0 |
| Current Consumption (Sensor Only) |
µA | - | 170 | 300 | - | 1[1] | 3 |
| Output Current | µA | - | - | 100 | - | - | 100 |
| Output Voltage | VDC | VDD-0.5 | - | - | VDD-0.5 | - | - |
| Circuit Stability Time (when voltage is applied) |
secs | - | - | 30 | - | 25 | 210 |
As we mentioned above, the sensing performances of the PIR Sensors are very similar with a few notable differences you'll want to be aware of to decide which one works best for your application. Also take note that PIR sensor performance can vary depending on the environment it is sensing.
Both the EKMC & EKMB have detection areas of 90° Horizontal and Vertical (±45°) and have 32 detection zones. The table below outlines their detection performance in relation to the background temperature:
| Detection Performance Characteristics | |||||
|---|---|---|---|---|---|
| EKMC4607112K | EKMB1107112 | Notes | |||
| Temperature Difference | Value | Temperature Difference | Value | Target Conditions | |
| Detection Range | 8°C (14.4°F) | up to 7m | 4°C (7.2°F) | up to 7m | 1. Movement speed: 1 m/s 2. Target concept is human body (Object size:Around700×250mm) |
| 4°C (7.2°F) | up to 5m | 2°C (3.6°F) | up to 5m | ||
Board Dimensions
The SparkFun PIR Breakout measures 0.50" x 0.85" (12.7mm x 21.59mm) and has one mounting hole that fits a 4-40 screw.
