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Loresek WAV Player Berbasis Raspberry Pi Pico

10 Jan, 2022

Ini adalah salah satu wishlist proyek DIY Loresek yang belum terlaksana, membuat digital audio player potable karena keterbatasan skill programming (hehe...). Proyek WAV Player ini berbasis Raspberry Pi Pico yang program dan koneksi hardwarenya didesain oleh elehobica.

Desain Rangkaian dan PCB

Loresek WAV Player Berbasis Raspberry Pi Pico

Versi Loresek nantinya akan menggunakan DAC andalan TDA1387 dengan rangkaian i/v yang simpel menggunakan single JFET, dan untuk bagian penguat (amplifier section) menggunakan single ended class A amplifier (KISS based).

Loresek WAV Player Berbasis Raspberry Pi Pico

Penyesuaian lainnya adalah, pemanfaatan pin DAC_enable yang versi originalnya adalah untuk melakukan proses mute pada DAC, dialihkan untuk mengaktifkan dan menonaktifkan rangkaian amplifier Class A.

Desain box/enclosure

Loresek WAV Player Berbasis Raspberry Pi Pico

Loresek WAV Player Berbasis Raspberry Pi Pico

Loresek WAV Player Berbasis Raspberry Pi Pico

Loresek WAV Player Berbasis Raspberry Pi Pico

Loresek WAV Player Berbasis Raspberry Pi Pico

Loresek WAV Player Berbasis Raspberry Pi Pico

Loresek desain pertama kalinya menggunakan FreeCAD, desain enclosure dibuat sesederhana mungkin agar mudah dicetak 3D. Terdapat lubang udara yang lumayan besar ukurannya, ini bertujuan untuk mengeluarkan panas dari bagian amplifier.

Spesifikasi:

Playback for 44.1KHz 16bit Stereo WAV format <<< (LOW RESOLUTION YA GUYS!)
SD Card interface (exFAT supported)
160x80 LCD display
Display Tag information by LIST chunk in WAV File
Display Coverart image by JPEG file

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