Lesson 8 Worksheet 8.2 – Drive until a black line

Write the following program to have the Edison robot drive on a white surface (reflective) until a black line (non-reflective) is crossed.


To use the line tracking sensor in a program you must first turn the sensor on. This also activates the red LED.

Use the black line on Activity sheet 8.1 or draw a black line on a piece of white paper. You can also use black electrical tape on a white desk. Drive the robot towards the black line and he will stop.

On Activity sheet 8.1 there are also three coloured lines. These are red, blue and green. Drive Edison towards each of the lines and see if he stops.


Is there a colour that Edison can’t detect (see) very well? Which colour is it? __________


Why do you think this is happening?




XMs Ed

Are you an educator?

Take advantage of our special classroom set discounts.

Click here to get a quote!
Ms Ed
  • Keep up with Edison

    Sign up for our newsletter to get all things Edison delivered straight to your inbox.

  • This field is for validation purposes and should be left unchanged.

Heads up

The Australian Federal Parliament has passed a law that extends goods and services tax (GST) to low value imports of physical goods imported by consumers from 1 July 2018.

This means that all customers purchasing Edison robots and accessories with an Australian shipping address must now pay GST. The GST will be automatically added to your purchase and show as a line item on your invoice.

We've detected that you are in Australia, so we wanted to let you know that we have changed your settings to view our Australian site, which displays GST inclusive pricing.

You can change back to the GLOBAL SITE at any time using the link in the top left of the page.

OK got it!    Take me to the GLOBAL SITE instead