PIR Breakout - 1uA (EKMB1107112)

Sensors Distance
1

Have connected the PIR Breakout - 1uA (EKMB1107112) onto a RPi 4B.

O/s is : 5.10.103-v8+ #1530 SMP PREEMPT Tue Mar 8 13:06:35 GMT 2022 aarch64 GNU/Linux

Using the example Python GPIO code in the product hookup guide, I get genuine detection events eg when my helpful doggie walks past the PIR sensor field. All good.

But I am also getting false events, for no apparent reason, at regular 60 second intervals, 2-3 each time.

Nothing else is connected to the Pi.

If I disconnect the PIR from the Pi; and run the same code with :

GPIO.setup(pir_pin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)

to set the pin with an internal pulldown resistor; no events are triggered (not sure if that really proves anything).

Next up is to test this on an Arduino…

Any advice/suggestions ?

2

Update:

Connected the the PIR Breakout - 1uA (EKMB1107112) onto an Arduino board.

Ran the code from product hookup guide, and it works perfectly, no false alerts.