In this Instructable, I'll be showing you how you can build a really cheap and easy to make portable MP3 player. It supports all kinds of input format which includes Bluetooth, USB, AUX, SD Card and FM. It has a playback time of 6 hours and sounds reasonably well.
So without any further delay, let's get started.
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Step 1: Watch the Videos.
The video contains detailed explanation of all steps for this build. You'll be able to make one for yourself after watching this video.
Step 2: Get Your Parts.
2. 2x 3 Watt Speaker
3. Bluetooth MP3 Player
4. PAM8403 Class D Audio Amp
5. 2x LM386
6. 2x 2200 uF Capacitor
7. 2x 100 nF Capacitor
8. 1x 470 uF Capacitor
9. 2x MT3608 Step Up Converter
10. 1Ah Lead-Acid Battery
11. 18650 Li-Ion Battery
12. TP4056 Li-Ion Battery Charger
13. SPDT Switch
14. Micro USB Breakout
Step 3: Build the Case and Do the Connections.
Refer to the layout for the case and the connection diagram for building the case and the making all the connections.
Step 4: Done!
Congratulations you have done it!
Enjoy your creation.
Thank you for reading.
Questions and comments are welcome. :)