Progress Log:
4 June – Online 3D printing course
22-30 June – Procurement of materials
9 July – Progress Meeting 1
24 July – Design of container, ordering of acrylic sheets
30 July – 3D printing of rails and shell for servo motor, set up of Raspberry Pi
4 August – 3D printing of Raspberry Pi case and running of codes to remove background of image taken by raspberry pi camera
6 August – Progress meeting 2, 3D printing of servo motor brackets and parts for vent, refining of codes
7 August – Assembling of vent, running codes for servo motor for vent, started constructing main portion of box
10 August – Assembling of spray mechanism with servo motor, running codes for servo motor (which failed as servo not strong enough)
14 August – Changed operation and servo motor of spray mechanism, running codes for servo motor
21 August – Glued side compartments of box and spray painted main compartment
28 August – Set up circuit involving Raspberry Pi, camera, LED lights and motors, continued assembling box
03 September – Replaced LED lights with brighter LED strip and continued doing circuitry, drilled holes and cut acrylic for box
10 September – Successfully tested out codes for color detection of banana, designed PCB board
11 September – Tried designing PCB board, drilled holes and cut acrylic for box
16 September – Replaced PCB board with perfboard and redid circuitry design
17-24 September – Took sample pictures of banana ripening process in box each day for calibration
24 September – Refined the box design, cut and glued more acrylic pieces