February:

In February, the primary focus of the team was on getting the mouse to follow a white line in a square. To do this, light dependent resistors were used on the bottom of the mouse with LEDs so that when the surface changed from black to white or vice versa the voltage through the resistor would change. We elected to have a slightly different sensor layout to the majority, having 3 at the front and 1 at the back. For the purpose of white line following, only 2 at the front would be needed. The construction and implementation of the sensors was straightforward using a Seasaw board to expand the amount of inputs that could be used with the Pi Pico. The coding was a bit more challenging to get sorted, as there was a few ways to do that could get a white line following, however some were smoother than others. We also added an OLED display to the mouse to determine what the voltage values would be when the colour changing took place. This month was very successful with majority of what was needed achieved for white line following.