Build Instructions

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• 1

  Step 1: Part List

  Component for the project:

  1. Arduino UNO https://amzn.to/2P58O7s

  2. SD card module https://amzn.to/2E1myhb

  3. SD card 8GB https://amzn.to/2xTCz6i

  4. Amplifier PAM8403 & speaker https://amzn.to/2V2uWC9

  5. Ultrasonic sensor HC-SR04 https://amzn.to/2rRrRa5

  6. OLED 128x64 https://amzn.to/31Vwikq

  7. Breadboard cables https://amzn.to/3ae8vk0

  8. H-bridge https://amzn.to/2QS2FeI

  9. Mini pump https://amzn.to/2xla6pV

  10. MDF wood 3mm thickness (laser cut) https://amzn.to/33Q4LTz

  11.White glue (for MDF wood) https://amzn.to/2WKo7YJ

• 2

  Step 2: Make the Case and Install PCB Parts

  I used MDF 3mm wood to make the case for this project. MDF wood is cut by laser cnc machine, design file is at this link https://bit.ly/2XuECIy

  In case you don't have laser cnc machine, you can cut it by jig saw.

  Then the case is fixed by white glue.

  After finish the case, we will install electronics parts like Ultrasonic sensor, OLED 128*64, Arduino UNO, H-bridge, SD-card module

• 3

  Step 3: Circuit Desgin and Do Wiring

  Let's make a circuit like picture, then do wiring by breadboard cables. I notice that some breadboard cables has low quality, it can be broken inside, then it leads me a lot of troubleshooting time. I recommend you check the breadboard cable before do wiring

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