Group assignment:

Probe an input device's analog levels and digital signals.

Individual assignment 1:

Measure something: add a sensor to a microcontroller board that you have designed and read it

Here is the hardware that I used for input devise - Heart rate sensor.

Here is the board

In the

In the

In this assignment, we chose ATTINY 44 as the CMU of my board. Here is the map of pin founction of Attiny44.

According to this map, we can familiar with the pin function of ATTINY 44 and design my board rightly.

When