The exclamation is simply a notification that you have connected a non-LEGO® sensor into one of the EV3 ports. It does not interfere with the operation of the block.
This warning was removed in LEGO® MINDSTORMS® version 1.1.1.
The Vernier se...
You need to import the Vernier Sensor Block into MINDSTORMS. For instructions for downloading the Sensor Block, go to this web page:
https://www.vernier.com/engineering/lego-ev3/ev3-sensor-block/
LEGO® MINDSTORMS® Education EV3 Core ...
To display a sensor reading on the screen of the EV3, you must configure the Display block to allow sensor readings to be wired as input:
1. Drag a Display block onto the programming canvas.
2. Click the Folder button and select Text>Pixels.
3...
The Vernier sensor block for LEGO MINDSTORMS EV3 includes an option for oversampling. Oversampling takes a large number of samples and returns an averaged reading. This is a good feature to use when you need a steady, stable reading. Note that oversa...
The following are a series of troubleshooting steps that should help you find the issue:
1. Check to verify that your EV3 is on. Periodically, the EV3 will shut down when not in use for a length of time.
2. Check that the port number into which yo...
In most cases, the LEGO EV3 program does exactly what you have programmed it to do. If you are having trouble, follow these troubleshooting steps:
1. Look over your program block by block and review your process map to make sure they match.
2. I...
The answer depends on the sensor:
First of all, only sensors with the BTA connector can work with this adapter. This eliminates all the BTD, Bluetooth, and USB sensors.
One of the limitations of the NXT, at least when it is used with MINDSTOR...
(This information refers to the LEGO NXT robotics system. The information should be similar for LEGO EV3. However, this has not been tested.)
There is a way to connect a CO2 sensor to an NXT mindstorm, but it will require that you are comfortable ...
There are two issues that may cause this to happen.
1. The reading from the Differential Voltage Probe (DVP-BTA) is not centered around zero (0). You can determine this by studying the reading from the Voltage Probe when both solar panels are in t...
The way videos are processed in Logger Pro 3 for Windows precludes sound from being played when you play the video within Logger Pro. To listen to the sound on a video, view the video using Windows Media Player or other supported video player.
Th...