Final Project Journal

1. I decided to start sketching (8 sketches) from scratch by imagining the components of the design. I used 'the Hit the number game' box as a reference for measurements taking in mind the dimensions of the electronic components I'll use (I got the dimensions from the real components I have)

2. After finishing sketching, I extruded them into new components with 3mm width, made rigid joints to make a 3d box, mounted the Arduino UNO model in the box to ensure the measurements, and exported the DXF files

During laser cutting phase

I used Arduino C Text to write the code

The code scenario
Basically, when the device opens, LCD displays a Welcome message then the services selection window appear

if client uses pushbutton n.1, LCD shows the order of service n.1 and returns to services selection window.

if client uses pushbutton n.2, LCD shows the order of service n.2 and returns to services selection window.

if they reach ten in one service, LCD shows thanking message and returns to services selection window.

orders decrease by time every 7 secs ( in real, we can make large time interval depends on service time estimation but for demo illustration purpose we make it shorter )

for this code, Millis function, blink without delay method and Liquidcrystal library for LCD are used.

• the feedback was so nice, especially in the fabrication phase

• the ideas shared with me are digital touch screen usage rather than buttons

• the idea that I built upon is the way I write the time interval code. it belongs to the instructor

• I helped my peer to design and sketch for LCD part and holes for fixation

• My peers helped me in the coding phase to build the statements logically correct, taking the components measurements, and mounting the Arduino in the box in the designing phase
  

• Design phase: it took me time to ensure the measurements

• Assembly phase: it showed me that I need some adjustments to make rigid joints, So I returned to the design phase to make some adjustments. the problem was solved after revising the measurements

• wiring phase: I forget LCD wiring, so I connected it wrongly and the result was that it didn't work. I found the wiring error by revisiting the wiring I did (TX rather than A0) and reconnected it correctly, the problem was solved by reconnecting the wires in the correct pins

• coding phase: there was a challenge to write code that represents time interval, the problem was solved when the instructor asked me to search online and after searching he guided me to the solution which is the method 'blink without delay' (details shown in code above)

I'd work on nice to have features or add some extra features to the device
for example, I'd use an ultrasound sensor to make the LCD display a welcome message when a client comes nearer