BT_Sousce for Yoradio_mod

Based in ESP32 WROOM

Version history

v1

Initial version.

• BT Sourse mode.
• Battery monitor

v2

• Added sink mode
• AVRCP control in both modes

Connections

I2S

WS      -   25
BLK     -   26
DIN     -   27
MUTE    -   23

MUTE set LOW level when BT Sink connected

UART

RX      -   5
TX      -   4

ADC

INPUT   -   32

CHARGE_MODE_SETUP   -   12
CHARGE_MODE_CONTROL -   13
CHARGE_MODE_LED     -   14 

INPUT connected to voltage divider (R1 = 47k, R2 = 120k)

CHARGE_MODE_SETUP - charge detection (input): LOW - hardware detection HIGH - software detection

CHARGE_MODE_CONTROL - input for hardware detection

CHARGE_MODE_LED - charge indication led (output).

Flash

1. From VS-CODE + ESP-IDF
2. Flash Download Tools:

   0x01000     build/bootloader/bootloader.bin
   0x10000     build/bt_source.bin
   0x08000     build/partition_table/partition-table.bin