|Figure 1. A blinking LED circuit.|
While Michelle experimented with the aquarium pump and other mechanical parts, Parm and Le followed some lessons from the instructive booklet, which (in order attempted) were:
- A very simple circuit that lights up an LED when a button is pressed.
- An expansion of the LED circuit, with 6 LEDs that fade on and off from right to left, as pictured in Figure 1.
- A circuit involving the relay, which was much more complicated and only half-successful in implementation, as the lab's time was coming to an end.
The breadboard was powered by our Arduino Uno, which was connected to a computer and running the pre-written code from the disc. Davina took this time to read through that code and learn how the Arduino syntax relates to physical results.