Version 24 (modified by lazlo, 11 years ago) (diff) |
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Bass Box
A portable speaker box, that is feed via bluetooth (based on the GP503 from Jay-Tech).
Project was initiated by Gregoa.
Modifications
- replaced speaker
- created custom chassis
- customized circuit
- new circuit (planned)
Speaker
...
Chassis
Adjustments made:
- supports speaker of size ... FIXME
- connectors moved and/or replaced
- source switch for mux on chassis rear side
- power connector (was mini usb, now hohlrundstecker? jack) on rear side
- original status led moved
The 3D model file: project/bassbox/bassbox2.scad (OpenSCAD file format)
Circuit
Original PCB
Simplified block diagram of the original circuit.
[ miniusb_conn ] -> [ ? ] -> [ charger_circuitry ] -> [ accu(1.37V, ?nA/h) ] -> [ Vreg(?nV) ] +--------+ | switch | +--------+ | v +------------------+ +-----+ +-----+ +---------+ | bluetooth_module |--->| mux |--->| amp |--->| speaker | +------------------+ +-----+ +-----+ +---------+ A +---------+ | | line_in |--------+ +---------+
The central IC, responsible for the Bluetooth part, located on the module board is a ISSC IS1684S (second photo).
Pictures of the main PCB and the Bluetooth module that are part of the Jay-Tech GP503.
Customized PCB
New PCB
Related
- Bluetooth stereo audio Receiver module
- Development Board for the Bluetooth module
- Bluetooth stereo audio board
- Bluetooth Modul BROADCOM QCOM BCM92070MD (USB) available from Pollin
Contributors
- Chassis CAD model by lazlo
Attachments (6)
-
IMG_0442_modified-small.JPG
(475.1 KB) -
added by lazlo 11 years ago.
BT-Module
- bassbox2-model.png (9.0 KB) - added by lazlo 11 years ago.
- IMG_0450_modified-768x10xx.JPG (222.6 KB) - added by lazlo 11 years ago.
- BPia9RqCIAAJEOZ.jpg (28.0 KB) - added by lazlo 11 years ago.
- bassbox2_r1185.scad (7.9 KB) - added by roh 7 years ago.
- Boomz-1_Rueckwand_r1045.svg (18.5 KB) - added by roh 7 years ago.
Download all attachments as: .zip