Seeed grove motion sensor control and actuator modules seeed studio 101020020 the grove pir motion sensor from seeed studio detects movement at up to 3m with a detection angle of 120deg when something intrudes into the detection area the sensor raises its output line to a logic 1 if you want to change the detection distance or holding time solder pads are provided for a pair of 10k ohm potentiometers seeed provide technical documentation example projects and software libraries on their