Measures light intensity as a percentage, 0 = darkest, 100 = brightest. Used in Reflected Light Intensity and Ambient Light Intensity modes. Program your robot to respond differently based on the amount of light in a room, or if another light source shone onto the robot, such as a torch.As with detecting colour, for best results, the colour sensor needs to be between 1-2 cm away from the surface you are trying to measure. Follow the edge of a black line on a light background.Program a robot to stop when it reaches the edge of a table (ie.Program your robot to respond to masking tape placed on dark carpet.Drive across different coloured pieces of paper, responding to each colour with a different action.Sort LEGO bricks based on their colour.Ambient light intensity is measured as a percentage from 0 to 100, with 0 being very dark, and 100 being very bright. Ambient light intensity – In this mode, the colour sensor measures the amount of light in its environment, without producing its own light source.The intensity of the light is measured as a percentage from 0 to 100, with 0 being very dark, and 100 being very bright. Reflected light intensity – In this mode, the colour sensor emits a red light and measures the amount reflected back into itself from the surface you are testing.Each colour is also represented by a value (see “ Colour and light data table” below). Note: For best results, the colour sensor needs to be 1-2 cm away from the colour you are trying to detect, and have consistent lighting. Colour – In this mode, the colour sensor can differentiate up to seven different colours: black, blue, green, yellow, red, white, and brown.The colour sensor has three different modes: colour, reflected light intensity, and ambient light intensity. The colour (or color) sensor can detect either the colour or intensity of light.
This is particularly useful if, for example, the buttons on the EV3 bricks are difficult to reach. Make a robot begin its programmed action when a touch sensor is pressed.With two touch sensors and a couple of long wires, create a simple remote control.Build a robot hand (or venus fly trap!) that closes when something touches it.Create a “cookie clicker”-style game that display the number of times a touch sensor has been pressed.It can even be programmed to wait until it is both pressed and released (we call this bumped).
The touch sensor detects when it is being pressed or released. The touch sensor gives your robot a sense of touch. In addition to the standard LEGO EV3 sensors that come with the Education and Retail versions of the EV3 set, it’s worth noting that there are also many third-party sensors available. from your local LEGO Education distributor). The EV3 sensors are also available separately (e.g. See below for a summary of how many of each kind of sensor come with the Education or Retail sets. The selection of sensors in your kit depends on whether you have the Education or Retail version of the EV3 set. With the sensors that come with the EV3, you can make a robot respond to being touched, react when someone or something comes too close, follow a line, or measure how far they have turned. Sensors provide robots with information about their environment.
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