Build Instructions

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• 1

  Step 1: Parts List

  For this project we will need:

  • TCS34725 RGB Color Sensor For Arduino by DFRobot
  • I2C 16x2 Arduino LCD with RGB Font Display by DFRobot
  • DFRduino Pro Mini V1.3(8M3.3V328) by DFRobot
  • 2 x CR2032 Battery Holders
  • Sliding switch
  • RGB LED module
  • Wires
  • 3x7 cm prototyping PCB
  • Male and female pin header
• 2

  Step 2: Schematics

  Refer to opening video's assembly section and schematic below to see how to place parts on a PCB.

  Use schematic provided above for correct wiring.

• 3

  Step 3: Design and 3D Print the Case

  After we have measured the parts, it is time to design a 3D case and print it!

  Design

  Here is the link to my design: https://www.tinkercad.com/things/dG47Pr28uwx

  Case above is designed to perfectly fit all the components listed above.

  Front part will hold the LCD screen and color sensor.

  Main 3x7 cm PCB will hold DFRDuino Pro Mini, battery holders and 3 push buttons and will be screwed on the back part from inside.

  RGB LED will sit inside the top section of the back part.

  Power switch will fit in the small hole on the back part.

  Printing

  3D models ready for printing are available on Thingiverse: https://www.thingiverse.com/thing:3223709

  Print settings may vary depending on your printer.

  Supports are needed for battery cover part and front part because front part has a built in distancer to provide distance between color sensor and specimen.

  Assembly

  For assembly instructions please refer to the assembly section of the video provided at the begining.

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