2 & 3 - The Beak LED and Tail LEDs have 3 tiny light elements inside each of their lights, with the red, green and blue colours.
4 - The LED array on the micro:bit has a 5x5 grid with 25 tiny lights. The Finch can be programmed to light up the array in any pattern coded by the user.
5 - The finch can produce musical notes through the buzzer with a MIDI number of between 32 and 135.
6 - Any marker can be inserted through the marker holder area with its tip facing down; this allows the Finch to draw images depending on what it was programmed to draw.
1 - The wheel encoders on each wheel measure in wheel rotations how much distance has its corresponding wheel travelled.
2 - Sensors at the bottom of the Finch that give it line tracking capabilities.
3 - Detects how far an object is from the Finch. It can measure distances of up to ~275cm.
4 - Detects the intensity of the surrounding light near the sensor.
5 - Detects the orientation of where the Finch is facing relative to the North Pole
6 - Detects the orientation of the Finch in space; whether it is upside down or upright, or if its beak is facing upwards or otherwise