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Questions tagged [sensor]

Used for detecting the environment in Mindstorms and related sets.

2
votes
1answer
36 views

NXT Sensors not working

looking for advise, pulled my Mindstorms 8547 kit out of storage and started to play with it after several years of inactivity. Found that the Color Sensor, Ultra Sonic Sensor, and the postion read ...
4
votes
1answer
37 views

Sensor usage during manual control

I created a design challenge where students will use their touch sensor and ev3 brick to play a game of freeze tag. Is it possible to have a program where they can manually control their robot via ...
5
votes
1answer
418 views

How to make Lego Mindstorms EV3 robot go in reverse when move steering input comes from proximity sensor

I saw an program on the Lego Education page which makes a Lego Mindstorms EV3 robot gradually slow down as it approaches a wall. The info from the proximity sensor is used as the direct wire input of ...
5
votes
1answer
69 views

Two touch sensors: how to determine which sensor was pressed?

I'm trying do make simple program. Two motors, two touch sensors. Sensor one increases speed, sensor two decreases. The whole program works very well but only with one sensor. When I put some logic ...
2
votes
2answers
170 views

How To Plug Detected Light Values into Variables and Still be Usable in Programs in EV3-G

I've seen teams, mostly in the world festival do this, and what they do is they program the robot so that when a brick button is pressed, the robot detects a value (usually RLI) and it is used later ...
4
votes
1answer
124 views

Are there any sensors that are capable of measuring audio pitch for EV3?

Are there any sensors that are capable of measuring audio pitch? Or is there an easy solution that a beginner would be able to make work?
3
votes
1answer
947 views

Use legacy RCX sensors with EV3

In NXT-G, there was a "Legacy" Block pack which had blocks to allow for the use of RCX motors/sensors with the NXT, as long as you had a converter cable. However, the EV3 software does not have this, ...
4
votes
1answer
213 views

Are there LEGO Hygrometer sensors?

Currently, there are light, ultrasonic, touch and sound Mindstorms sensors, but is there a hygrometer sensor from LEGO?
2
votes
0answers
84 views

HiTechnic Color Sensor analog

HiTechnic sales support said that HiTechnic color sensor hasn't been manifactured yet. Currently it's out of stock in HiTechnic shop. Is there any analog of this sensor except NXT/EV3 color sensors?