SparkFun will be closed Monday 7/4/2022 for the 4th of July holiday. Orders placed after 2 pm MT on Friday 7/1/2022 will be processed on Tuesday 7/6/2022. SparkFun Support will also resume on Tuesday 7/6/2022. Have a safe holiday!
The X-Band Motion Detector from Parallax is a common ingredient in security systems and automatic door openers, and can detect movements in a room, yard, or even on the other side of a wall!
This little board utilizes a Doppler radar sensor that operates in the X-band frequency at 10.525GHz, and indicates movements with oscillations in its high/low output. Sensitivity is manually adjustable with a potentiometer on the back of the device, offering direct line of sight detection from roughly 8ft to slightly over 30ft (~2.4 to 9+ m).
We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.
Based on 1 ratings:
Absolutely no output from this module.
Tried adjusting sensitivity, checking test point with oscilloscope and nothing. Disappointed.
If you're having trouble, please contact our technical assistance team for help.