23w16 Homework Show: Light Controller Alarm Clock

We assigned an explorative homework this week, the requirement is to use Micro:bit's internal light sensor to check environmental lights, using this as input to judge if the night is getting brighter and brighter , then trigger the alarm sound. The purpose it to build basic Input-process-output basic concept, and by the chance to experience the interesting built-in sensors and buzzer on Micro:bit.

This is challenging, because we didn't provide much tips of how to do it, but interestingly, the students seemed to be very active, they get help from parents and help each other, so then show us very interesting results.

This homework is converted as a learning project later on: PJ008: Light Triggered Alarm Clock with Micro:bit, because this is very fun one, it looks simple to make, but a little tricky to make reliable, without non-stopped alarming sound, and without unnecessary alarm sound when the day becomes from bright to dark.