WalkMP3rson Suggested Changes

[mikeysklar]

Forum user @galinawind provided a detailed word document of suggested improvements and some corrections for the WalkMP3rson guide.

The document is attached here, but I let an AI summarize the contents.

Walkmp3rson_project_corrections.docx

I can order the parts and start making guide updates, but it would be good to have @jedgarpark do a review first.

Walkmp3rson Project Corrections and Additions

1. Parts List Corrections and Additions
   - Adafruit I2C Stemma QT Rotary Encoder
   - Micro Potentiometer Knob (not needed)
   - Additional components needed: M2.5 Nylon hardware, heat shrink, Dupont connectors, CAT5 cable or 24AWG wire

2. CAD Files and 3D Printing Options
   - Libraries and community centers
   - Commercial services like ShapeWays

3. Display Connection
   - Header attachment to Feather Doubler
   - Preparing display wires
   - Correcting wire connection based on circuit diagram

4. Display and Header Assembly
   - Bending pins for display attachment
   - Testing display connection

5. Amplifier Preparation and Connection
   - Socket attachment to amplifier
   - Wire attachment difficulties
   - Hot glue to secure connections

6. Headphone Output
   - Heat shrink for plug
   - Connection to amplifier

7. On/Off Switch Installation
   - No specific on/off labeling
   - Hot glue for security

8. NeoKey and Encoder Testing
   - Cable connections

9. Final Assembly Adjustments
   - Display mount adjustments
   - Feather Doubler and USB port alignment
   - Button and switch mounting
   - SD card extender stability
   - Final assembly and screw placement

10. Code Corrections and Enhancements
    - Memory error on track switching
    - Directory structure for music organization

[jedgarpark]

thanks @mikeysklar I'll have a look

[jedgarpark]

@mikeysklar this will take some time to go through, but here's the first section I tackled:

Walkmp3rson Project Corrections and Additions

1. Parts List Corrections and Additions
   • Adafruit I2C Stemma QT Rotary Encoder

This is in the parts list, i bumped the quantity up to two

• Micro Potentiometer Knob (not needed)

I marked this as optional

• Additional components needed: M2.5 Nylon hardware, heat shrink, Dupont connectors, CAT5 cable or 24AWG wire

I added the dupont connectors we carry to the parts list, as well as the m2.5 hardware kit, heat shrink, and hook up wire

2. CAD Files and 3D Printing Options
   • Libraries and community centers
   • Commercial services like ShapeWays

I added an alert box about 3D printing services

3. Display Connection
   • Header attachment to Feather Doubler
   • Preparing display wires
   • Correcting wire connection based on circuit diagram

Not sure what didn't work for them based on the photos in the guide, mine is soldered that way and works, but a great point to follow the circuit diagram. I added another note to tell people to trust the circuit diagram above photos

[mikeysklar]

Thank you for the updates. I think your commentary on the changes you have made is helpful for the submitter and myself.

[jedgarpark]

3. Display Connection

   • Header attachment to Feather Doubler Added a note to be sure to use the short headers
   • Preparing display wires
   • Correcting wire connection based on circuit diagram photos in guide are of working board, so not sure what was causing issues, but I added a note to definitely follow the circuit diagram when in doubt

4. Display and Header Assembly
   • Bending pins for display attachment

no need to bend them, use the right angled headers instead as mentioned in the guide. i added these to the parts list

• Testing display connection

5. Amplifier Preparation and Connection
   • Socket attachment to amplifier

right angle header used in the guide to keep it low profile

• Wire attachment difficulties
• Hot glue to secure connections

good idea

6. Headphone Output

   • Heat shrink for plug
   • Connection to amplifier

7. On/Off Switch Installation

   • No specific on/off labeling
   • Hot glue for security

8. NeoKey and Encoder Testing

   • Cable connections