Table of Contents

Boxa Bluetooth cu Afisaj

Introducere

Descriere generala

                      +------------------+
                      |   Telefon/PC     |
                      +--------+---------+
                               |
                          Bluetooth
                         (A2DP+AVRCP)
                               |
                      +--------+---------+
                      |    CSER8630      |
                      | Modul Bluetooth  |
                      +---+----------+---+
                          |          |
                        UART       Audio
                        (meta-     (semnal
                        date)      analogic)
                          |          |
             +------------+          +------------+
             |                                    |
    +--------+---------+              +-----------+------+
    |   ATmega328P     |              |     TPA3110D2    |
    | Unitate Centrala |              |   Amplificator   |
    +--+---+---+---+---+              |     2x15W        |
       |   |   |   |                 +----+--------+-----+
       |   |   |   |                      |        |
      I2C ADC GPIO UART              OUT L+/-   OUT R+/-
       |   |   |   |                      |        |
       |   |   |   +---------> CSER8630   |        |
       |   |   |                     +----+--+  +--+----+
       |   |   |                     |Difuzor|  |Difuzor|
       |   |   |                     | Stg.  |  | Drt.  |
       |   |   |                     +-------+  +-------+
       |   |   |
       |   |   +-----> Butoane (play/pause)
       |   |   +-----> LED-uri status
       |   |   +-----> Potentiometru 10kOhm (volum)
       |   |
       |   +---------> Filtre RC (bass/voce/treble)
       |               [low-pass 47nF][band-pass][high-pass 4.7nF]
       |
       +-------------> SSD1306 OLED 128x64
                       (titlu, artist, volum, vizualizator)

Alimentare:

[18650 x2] --> [TP4056 Type-C] --> [XL6009 Boost]
                                        |
                            +-----------+-----------+
                            |                       |
                          12V                      5V
                            |                       |
                        TPA3110              ATmega328P
                                             CSER8630
                                             SSD1306

Hardware Design

Lista de piese:

Nr. Componenta Cantitate
1 ATmega328P 1
2 Modul Bluetooth CSER8630 1
3 Amplificator TPA3110D2 2x15W 1
4 Display OLED SSD1306 128×64 I2C 1
5 Difuzor VISATON FR10HM 4Ohm 20W 2
6 Incarcator TP4056 Type-C 1
7 Convertor DC-DC Boost XL6009 1
8 Acumulator Samsung 18650 2600mAh 2
9 Potentiometru linear 10kOhm 1
10 Cristal 16MHz + condensatoare 22pF 1
11 Rezistoare 10kOhm 1/4W 6
12 Condensatoare ceramice 47nF 2
13 Condensatoare ceramice 4.7nF 2
14 Butoane tactile 5
15 LED-uri de status 2

Software Design

Rezultate Obtinute

Concluzii

Download

Arhiva cu fisierele proiectului (surse, scheme electrice) se gaseste atasata mai jos.

Jurnal

Bibliografie/Resurse