Two old-fashioned rotary phones were used to create unique Pomodoro timers for a nostalgic project during Prototype Week.
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As part of Prototype Week, Kristina, Nils, and Philipp decided to develop a unique and engaging Pomodoro timer with a fun and nostalgic twist – they used an old-fashioned rotary phone. Since the office’s retro-inspired decor already contained such old phones, it was the perfect jumping off point for the project.
The trio's theory was that using a telephone from the 1950s would be perceived as charming and nostalgic, hopefully leading to improved user engagement and productivity. This, in turn, would make work intervals even more enjoyable and effective.
After brainstorming ideas, setting goals, and establishing the direction of the project, the colleagues began dismantling the retro phones in an attempt to gain a deeper understanding of their functionality. To their surprise and delight, they quickly realized that it was rather straightforward.
After identifying the necessary hardware components, such as LED lights and a buzzer, they started programming the rotary part of the phone since it was one of the key components of the timer. Once they got it to work they added some fun features, including an LCD screen and a variety of custom ringtones.
The team divided up the tasks based on different components and experiments but also worked together extensively to leverage everyone's knowledge and experiences.
There were many factors to consider, especially when dealing with older hardware, as it was challenging to debug when something didn't work as intended. This was inevitable, as the prototypers had already anticipated, which is why they had ensured multiple devices were available in case one broke or did not function properly.
Initially, Philipp, Nils, and Kristina wanted to reuse as much of the original hardware as possible, particularly the bell. However, a lack of voltage made it difficult to power. After attempting to use a servo motor with a clapper attached to mimic the swinging that makes the bell ring, they encountered complications with programming and the servo's inability to keep track of its position. At that point, they decided to scrap the bell altogether and use a buzzer instead. The upside of this change was that they could now use unique ringtones and a potentiometer to adjust the volume.
The prototypers behind the project found it both enjoyable and educational to work with old technology and found it fascinating to try to combine it with new solutions.
When it came to lessons learned, they quickly realized that it was crucial to solder everything; failing to do so risked loose connections.
Finally, the colleagues felt that the process of carefully selecting components compatible with the original casing added a fun and stimulating challenge.
If they had more time, or continue to work on the project in the near future, the prototypers would like to utilize the original microphone and speakers. One idea is to integrate them so that when you pick up the handset, a voice tells you how much time remains. Two other ideas to add are wireless connectivity for remote control and integrated voice recognition for hands-free control.
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