OLED Task Timer with Micro:bit

It is insanely simple to track hours, minutes, even seconds you spend working on tasks with this OLED Timer. The device is fully costomizable to create a list of tasks to suit your needs. Time, date, and tasks are shown on the screen. When the countdown time is about to reach zero, the piezo buzzer is triggered to play loud, warning sound.

Credit: I want to express my appreciation to Callum for the wonderful idea and hard work you put to the "Times Up" project.

AGE 8+

DIFFICULTY NORMAL

LANGUAGE MakeCode

CATEGORY ROBOTICS

How to use?

This homemade timer will give you a clear insight into how much time you need to perform a task or finish a project. All it takes are only two clicks. Each button on the keypad is programmable for your specific task. Its name, along with the duration, are printed on the 128x32 OLED display when a button is pressed. To confirm countdown, press #.

Prototype

In our prototype made out out of a mooncake cardboard box, we used the 1602LCD screen for reading. It was rather clumsy with only four push buttons for inputs. We then switched to a 3x4 keypad to avoid a horrible cable clutter.

Second generation:

The second version made great improvements to include more tasks without adding extra cables. With the matrix keypad, we were able to add TEN daily tasks with only SEVEN cables. Our first generation needs at least 20 cables for the same purpose!