Input Panel – Request for Comments

I am currently working on the input panel board for the pet-feeding device. You are invited to review the board and send me your comments or suggestions via this page, Twitter or email.

About the Input Panel

The input panel is directly connected to the controller and contains the rotary encoder for the input and four LEDs for various status displays. The input panel also connects to the LCD display via I2C bus and contains the optional level shifter from 3.3V to 5V.

It is mounted with four screws to the front panel, to provide a solid base to the rotary encoder and its knob.

Design Goals

My main idea is to produce a board, someone can use without experience of PCB design software. The design does not have to be universal, but versatile for its intended use.

• The board is versatile for many different controllers and situations.
  • The user populates the parts they need.
  • It can be used with various I2C connected displays.
  • It can be used with MicroMatTch connectors or soldered wires.
  • Solder jumpers to customize the board.
• The board can be produced cheaply.
  • Large via holes.
  • Large pad and trace distances.
  • Two layers.
• All components can be ordered from various suppliers.
• The expensive components are optional.

The Schema

The schema contains the part numbers where needed. Components, like the LEDs are not labeled, as the user can use any they like.

The Board

Top

Bottom

Component View

Conclusion

If you find any problems, like to provide improvements, new ideas or just some feedback, feel free to comment below or contact me on Twitter. 😄

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