Sleep Baseball Podcast Player

A player for Northwoods Radio Sleep Baseball: https://www.sleepbaseball.com/. You press the button, it plays a random episode. No controls to worry about, it will stop at the end of the episode: you just press the button and listen until you're asleep.

Parts

• Flyron FN-BC10: I got mine from AliExpress for about $12
• Momentary pushbutton
• 4 Ohm speaker: You might be able to salvage one from a broken electronic gadget
• 10 Ohm resistor (quiets the speaker down)
• M2.5 screw
• Hot glue gun
• MicroSD card
• Some MP3 files you want to play

Print Instructions

I printed in PLA with “WSLP” facing down. Set support enforcers on the PCB mount protrusion, and use organic supports for support enforcers only. There are some overhangs in the P that will be okay if they're sloppy: you won't see them.

Assembly

Hot glue the speaker onto the back. There's a small indentation for my speaker, but any size should work just fine.

Solder the resistor between one of the speaker terminals and the speaker pad on the board. Wire the other terminal in directly.

Hook the button up between K1 and ground.

Screw the PCB into the mounting hole. If you used the “big hole” variant, you can put a bunch of hot glue in the hole instead to mount it, then squish the PCB down into the glue.

Setup

The MicroSD card needs to be set up in a very particular way.

At the top level, you need a file named read.cfg with one character in it: 0. If you're on Windows, you may have trouble getting the file to be named correctly: be sure it doesn't end with .txt or something.

Now create ten directories: 01, 02, 03, 04, 05, 06, 07, 08, 09, and 10. You have to make all these directories, or it won't work right.

Now drop your episodes into the 01 folder, insert the SD card, and you should be going!

You can adjust the volume to an extent with a screwdriver on the blue adjustment potentiometer by the headphone jack.

Complete redesign using the dimensions of the Kpaulos faceplate.