Tong’s Weekly Check-In Calculator

Weekly Check-In Calculator

This is a physical check-in device placed at home. When you set a goal and start acting on it, you press the button to check in each time you complete a task. When you reach your check-in goal, the calculator will shoot out confetti to congratulate you.

I had two big problems with the model this week, the first was how the confetti could be sprayed and used multiple times. The second was how to implement the idea that the user must clock in 7 times in a row to trigger the confetti.

Model

Regarding the colored confetti , I took your feedback this week into consideration and looked for many ways to make simple ribbon cones, and finally decided to use the prototype below.

This video inspired me about how to do a continuous clocking

Oh, and as far as how to pull this leash, I think an eccentric wheel ➕ rotator (I’d prefer a servo) could do it.

So now I have my prototype model.

Next I am going to use 3D modeling and printing for all mechanical parts except for circuits, motors, lights, switches, etc.

Circuit diagram

My main question is: which one of the servos or the DC motor can actually drive my leash setup. I first tried to build the circuit diagram for the DC motor, I chose to connect 7 switches in series, each responsible for one LED. This was to make sure that the switches were pressed one after the other to get the confetti going. Then add another DC motor in parallel with the LED on the last switch. This makes it possible to press the switch 7 times in a row to start the confetti (after 7 consecutive punches, the reward is given directly). This was a tough design and it took me about 3 hours to connect it.

The other option is to use servos, luckily I only had to make a few modifications to the last schematic and all the necessities were taken care of by the way the circuit was connected, I just had to set up how the motor would turn in the code section ！！！！！！