Assignment 4: Open Proposal – Imra Ali (3187224)


I created a hydration clip that supports the wearer’s water-drinking journey. The portable device has a clip at the back that can be placed onto any article of clothing. The device has 2 buttons and 10 lights to support the interaction of water consumption. Button 1 (A) has a water drop icon on it and the wearer presses the button after they drink a glass of water. As there are 10 lights, the daily goal is to complete the ring. Once the daily goal has been achieved, the device turns on the celebration lights and sound. Button 2 (B) has a timer icon on it and when the wearer presses the button, their activating a 1-hour silent alarm. Once the timer is completed, a sound is played to remind the wearer to drink water. The timer is only activated when the wearer presses the button and wearers do not need to wait for it in order to drink water.


Consuming water is an essential part of the human body. This liquid helps regulate our organs, tissues, temperature, emotions, and performance. When looking at stats, humans around the world are not drinking enough water. Therefore, I decided to blend these two elements and create a hydration clip. Companies have tried many innovative ways to promote daily hydration such as building apps or creating smart bottles but unfortunately, people are still not motivated. Reminders from hydration apps get lost with other notifications and smart bottles are costly. Water bottles cannot be attached to a person 24/7 but this hydration clip can. My hydration clip is an effective solution since your daily counter is constantly on display with a built-in timer to remind you to drink. The satisfaction and urge to complete the ring provide an addictive rush. Wearers want to complete their rings and get rewarded with celebration lights and sound. This device is an effective way to support people’s water drinking journey and creating a healthy lifestyle.   


With the concept in mind, I began by creating a diagram to understand the input and output of each button. Next, I selected the colours for lights for each state and design the sleeve for the CPX.

diagram water-counter daily-goal-celebration

With the above documentation fixed, I was ready to move on to the coding process. Below is a screen of the code used on the hydration clip.


Once the coding process was complete, I moved on to the construction process of the sleeve. The material I used to cover the CPX was felt because it was soft but durable. I used claw clips since they have big mouths and can easily attach to any clothing. For the diffusion material, I used printing paper and wax paper. The construction was long and tedious because the lights had to align with the holes and the covers needed to be sewed on correctly. 

Below are close-up pictures of the sleeve and the implementation with lights. 

front-and-back-view interface-implementation

Final Project Images

Below is a video link to the demo:


Parts List

  • Circuit Playground Express
  • Micro USB
  • Felt Sheets
  • Printing Paper 
  • Wax Paper
  • Claw Pin
  • Stencil
  • Thread
  • Needle
  • Scissor

Reflections & Next Steps

Overall, I enjoyed creating the hydration clip. Reflecting upon my exploration journals and assignments, they all were building blocks that helped to create this concept. I learned that coding requires a lot of experimentation and that I will not get it on the first try. 

The construction process was my favourite because it requires great detail and precision. I went through multiple trial and error sessions before settling on this design. By doing this, I built confidence in creating the final sleeve. The sewing process was quite difficult because I had to make sure all the lights aligned with the holes that were created. 

In the end, I was happy with the creation and how much I have grown by taking this course. My next step for this project is to see if motion can be used to detect the wearer’s movement of drinking water. Also, I would look into batteries that would help to make the device portable. 


How much water do you need to stay healthy? (2020, October 14). Retrieved from

Quench USA, I. (2018, June 27). Nearly 80 Percent Of Working Americans Say They Don’t Drink Enough Water: Quench Survey. Retrieved from

Tamlin, S. (2020, May 21). Human Hydration: Are we drinking enough? Retrieved from

Related Works (cited in APA)

Hidrate Inc. (n.d.). HidrateSpark steel – INSULATED stainless Steel Bluetooth smart water Bottle & Free Hydration tracker app. Retrieved from

WaterMinder. (n.d.). Track your daily water intake With waterminder. Retrieved from

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