book

High-Tech LEGO Projects

by Grady Koch

December 2020

Intermediate to advanced

208 pages

5h 59m

English

No Starch Press

Read now

Unlock full access

what is MINDSTORMS EV3?what is Technic?what you’ll need to build the projects in this bookwho this book is forwho i amthe projectsonline bonus projects
building the motion-activated critter camusing the motion-activated critter camideas for going furtherwhat you learned

the diode laser modulewhat you’ll needmounting the laser modulepowering the laser modulesecuring the laser and wiringadding a cover to the laser structurewhat you learned
building the laser security fencewriting the softwareusing the laser security fenceideas for going furtherwhat you learned
what you’ll needbuilding a manual message transmitterbuilding an automated message transmitterwhat you learned
working with infrared lightwhat you’ll needthe covert Morse code transmitterinfrared Morse code receiverwhat you learned
building the automatic insect trapperwriting the softwareconnecting the automatic insect trapperusing the automatic insect trapperwhat you learned
building the motion-sensing radarwriting the softwareusing the motion-sensing radarideas for going furtherwhat you learned
understanding Eratosthenes’s discoverybuilding the tower of Eratosthenesunderstanding the angle of the sunmeasuring with the tower of Eratosthenesideas for going furtherwhat you learned
what you’ll needchanging the colors of LEGO light bricksperforming infrared and UV light brick experimentsbuilding a light brick that remains oncreating a light beamwhat you learned
what you’ll needprogramming the BlinkMholding the BlinkMpowering the BlinkMfinishing the fireplaceideas for going furtherwhat you learned
what you’ll needfront-surface mirrorsthe law of reflectionbuilding the laser light showbuilding the EV3 Intelligent Brick mountwriting the softwareusing the laser light showideas for going furtherwhat you learned
working with infrared radiationwhat you’ll needthe remote sensing thermometerthe heat-seeking cannonwhat you learned

Content preview from High-Tech LEGO Projects

12 the infrared thermometer and cannon

People often interpret the term radiation as referring solely to the harmful radioactive emissions from nuclear reactors or atomic bombs. But all objects emit radiation in the form of heat. Radiation, in general scientific terms, refers to any energy coming from an object. For example, you can feel infrared radiation from the sun when you’re outdoors.

Sensors called radiometers can measure infrared radiation and even quantify the surface temperature of an object. Satellites use radiometers to measure temperatures related to the earth’s clouds, layers of atmosphere, and oceans. The military also uses this sensing technology for heat-seeking missiles that home in on the hot engines of aircraft. In this chapter, ...