Category Archives: LASER Sensor

NXT Laser Range Finding Camera Theory

Below is Lego Mindstorms Compatible Laser Unit uses a 650nm 5mW (Red) laser module.  I wanted to create a small compact Laser Unit that fitted in as small a footprint as possible. The Laser Module and other electronics fits easily into a standard LEGO ‘2×4 Brick’, with a ‘2×3 plate’ & Technics Connector attached to the bottom. It would have been possible with some effort to fit all the parts within a ‘2×3 Brick’. I decided on a Fly-lead instead of a standard NXT style Socket to keep the unit compact. The Laser is very bright, despite it’s very small size, so as a range-finder the camera can pick it up from a far. Like a NXT Light Sensor’s Red LED, the Laser can be toggled on and of via Software.

Long Range Target Location Using a Laser Sensor

I began testing my Mindstorms NXT Laser Target Sensor with 40mm P.V.C. Pipe Tubes 50mm Long wrapped with 3M Scotchlite 8910 Retroreflective Silver Fabric. The distance between the Laser Sensor and targets varied from between 1 to 2 Metres in this Test. The Sensor uses a 650nm 5mW (Red) laser module. The Sensor can however reliably detect objects at 2.4m (8′), dependant on ambient light conditions.

LEGO Mindstorms NXT Laser Guided Shooter

I’ve been busy playing with my  LASER   Sensors , and have put together a Zamor powered LEGO Mindstorms NXT Laser Guided Shooter. If you would like to build your own, I have included the Model Instructions and NXC Program Code.

Testing the NXT Laser Target Sensor

Testing my Mindstorms NXT LASER Target Sensor with 40mm P.V.C. Pipe Tubes wrapped with 3M Scotchlite Reflective 8910 Silver Fabric.

LEGO Mindstorms NXT Laser Guided Shooter

I’ve been busy playing with my  LASER   Sensors , and have put together a Zamor powered LEGO Mindstorms NXT Laser Guided Shooter. If you would like to build your own, I have included the Model Instructions and NXC Program Code.



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