Office workers are constantly hunched over their laptops and computers for long hours every day. This causes back pains and bad posture. The Inflatable Vest is an interactive reminder for people to correct their bad habits. Every 20 minutes bubbles will inflate, forcing the user to stretch back and manually deflate the bubble. This makes users engage in a short break to exercise their muscles and stretch out the back.
Micro water pump: CS1730PW, DC6.0V
Tube 1/16 ID: 51135K12
Tube 1/8 ID: 51135K15
Checking valve: 2987K45
Tube barbs: 53415K281
Reducing Connectors: 5463K47
Disposable Finger Cot: 5291T6
Silicon film (3 ft * 2 ft)
Rubber wire: (Found in Michaels)
RTC Timer :
Make the bubbles
Cut the finger cot to the size you want.
Bring two tubes with 1/8 ID (One short, one long), 125psi checking valve and 15psi checking valve.
Tie with rescue tape. Make it tight so air will not leak out.
Make 5 more
Make the inflatable system
Build up the inflation system as the picture shows. Use reducing connecter to connect 1/16 ID tube and 1/8 Id tube.
Connect air pump to tube barb with the 1/16-ID tube.
*For all the connections, their ID must be matched up.
*Pay attention to the direction of checking valve
Test the bubbles with Arduino
After wiring all the components, connect the Arduino to your computer or a 9V battery to power the pump. If your balloon is not inflating, check over your wiring.
When the balloon is inflated, turn off the pump and squeeze the balloon. Check if the air could leak out from the checking valve. Check for any air leaks in the checking valve.
Keep pumping up the balloon to test the 50 psi valve. If the air pressure in the balloon is under 50 psi, no leaks should occur. If the air pressure is over 50 psi, air should start to leak out of the valve.
*The instructions above show how to make the inflatable unit. You can try to design your own structure (provide suggestions or examples.
Make the vest
In this part we’re going to make the balloons wearable. You can either buy a vest/shirt or make one by yourself.
Cut the silicon into two 2 ft by 1.5 ft pieces. Using the laser cutter to cut out the pattern.
Connect the silicon pieces together as pictures show.
Paste the Inflatable Part to the vest. What did you use to paste them together.
I also add EL wire to the vest to make it look cool.
You can edit the inflating time (pumpTimeron) and restart time (pumpTimeroff).
In my coding, the default time is:
pumpTimeron: 1 minute
pumpTimeroff: 15 minute