Skip to main content

Door alarm and sizometer

The French MINDSTORMS community is very productive lately. :)
Today we present another guest blog from France, by Matthieu Desfontaines on two of his creations:

"THE DOOR ALARM
The door alarm of the new Lego Mindstorms EV3 can detect it when somebody comes into your bedroom.
It works with a light sensor along with an ultraviolet sensor. It can be activated or disabled with a badge which you simply have to pass in front of the door lock ! It's really cool, like a real alarm !
The light sensor can detect it when the door is opened or closed ,while the ultraviolet sensor (which works with the remote controle or the badge ) can detect it when you pass the doorway. After activating the door alarm with the badge, every time somebody opens the door, the alarm rings to inform you. You have to disable it with the badge to stop it ringing. The alarm is very small but strong and it is hung on the handle of the door.

THE “SIZOMETER”
The “sizometer” in Lego Mindstorms EV3 can measure how tall are you in just a few seconds ! It works with a gyro sensor, an ultrasonic sensor and a touch sensor. It can estimate your height very quickly and easily. You have to follow the instructions written on the brick screen : 1­ calibrate on the floor ( gyro sensor ) 3­ search the horizontal position ( to get the best measure ) This invention is not very necessary but I think that doctors should use it to save time !

All instructions and programs are available on my website.   Thank for reading it !
Matthieu Desfontaines corrected by Aurelien Mantoni"

Popular posts from this blog

Celebrating MINDSTORMS with a Remix - Part 2

The ROBOTMAK3RS continued their celebration of the 25th Anniversary of MINDSTORMS through these summer and fall remix projects. Each ROBOTMAK3R was tasked with selecting one LEGO set of their choice and combining it with a MINDSTORMS set. Below are the five amazing models they came up with. Remote controlled material handle r by Jozua van Ravenhorst (aka Mr Jo) This remix combines the LEGO Technic Material Handler (42144) with MINDSTORMS EV3 (31313) It uses the power of pneumatic cylinders to move objects around. By using a bluetooth remote control, very precise movements can be made with this model. Touch sensors in the base chassis prevent the turret twisting the cables that go through the turntable to much. The program has several protections to prevent over pressurizing the system for each of the 3 individual pumps and valves that control the 2 booms and claws. The real version of this machine is mostly used in waste material sites to bring the material to machines that sort and

MINDSTORMS Retires!

2023 is the 25th Anniversary of the MINDSTORMS brand. For 25 years, MINDSTORMS has educated and inspired a generation of robot builders, both children and adults. Unfortunately, the LEGO Group decided to end the line on December 2022. Many ROBOTMAK3RS have been passionately involved with the development of MINDSTORMS through the MUP and MCP programs. Even with the newest Robot Inventor line, several ROBOTMAK3RS were invited to submit additional bonus models that were included in the official app. Regardless of the retirement of a major LEGO robotics product line, ROBOTMAK3RS continue to MAKE-SHARE-INSPIRE using all LEGO robotics platforms available to us. Here is the official statement from LEGO. Since its launch in September 1998, LEGO MINDSTORMS has been one of the core ‘Build & Code’ experiences in the company’s portfolio, carrying with it significant brand equity and becoming a stand-out experience for the early days of consumer robotics and leading to current Build & Code

Celebrating 25 Years of MINDSTORMS

In celebration of the 25th Anniversary of MINDSTORMS, we take a trip through history. Please also visit ROBOTMAK3RS Community every week as we highlight different projects all through 2023 in celebration of the anniversary. Some of the early history is based on the content shared by  Coder Shah  in our  MINDSTORMS EV3 Community Group . Some of the text and links may have been edited from his original posts for consistency and clarity.  1984 - Kjeld Kirk Kristiansen watched a TV program called "Talking Turtle," where MIT professor Seymour Papert demonstrated how children could control robot "turtles" using LOGO, a programming language he developed. 1988 - The collaboration between MIT and LEGO resulted in LEGO TC Logo in 1988, which allowed students to control LEGO models using computer commands. The video shows Papert demonstrating TC Logo. 1990 - LEGO TC Logo was hampered since the robots you built had to be tethered to a personal computer. LEGO and MIT