21. Octopus PIR Sensor Brick(EF04055)#

21.1. Introduction#

OCTOPUS PIR Sensor module is a type of electronic building block based on AM412 pyroelectric digital smart sensor. It can be used in sensing and detection of human or animal motion, sensing distance is about 4-5 meters.


21.3. Characteristics#

The 3-pins ports is easy to plug and play.

21.4. Specifications#

Item Parameter
SKU EF04055
Power Supply 3.3V~5.5V
Dissipation Adjustable power
Input Bi-directional differential and high resistance
Anti-interference Built-in filter to shield other Hz
Power Source Excellent PSR, RF makes little influence to Schmidt REL
Voltage Stability low voltage and dissipation, the voltage is stable after giving power
Working Temperature -25~85℃
Size 32.00mm×24.00mm

21.5. Outlook and Dimensions#


21.6. Quick to Start#

Materials used and connection diagram#

Connect to the P1 port as the picture shows

Take sensor:bit for example


Add Package#

Program as the picture shows#

  1. Digital read pin P1.

  2. While the show number is 0, an icon is showing on the micro:bit.

  3. While the show number is 1, a rectangle is showing on the micro:bit.




You can also download the links below:


If there is object approaching, an icon is showing on the micro:bit; while taking away the object, a rectangle is showing on the micro:bit.

21.7. Relevant Cases#

21.8. Technique Files#