Ehong EH-MB05, Руководство пользователя

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Bluetooth Audio Module
5. Pinout and Terminal Description
5.1. Pin assignment
Figure 1
：
Pinout of EH-MB05
Pin Symbol I/O Type Description
1 GND Ground Ground
Active LOW RESETB, input debounced
so must be low for >5ms to cause a
RESETB
CMOS input with weak
internal pull-up
2 RESETB
Input with weak internal pull- Serial Peripheral interface clock for
3
4
5
SPI_CLK
SPI_MISO
SPI_MOSI
down programming only
CMOS output, tri-state, with
weak internal pull-down Serial Peripheral Interface output for
programming only
CMOS input, with weak
internal pull-down Serial Peripheral Interface input for
programming only
Chip select for Synchronous Serial
Interface for programming only, active
low
Input with weak internal pull-
up
6
7
8
SPI_CSB
LED0
Open drain output LED Driver
Bi-directional with
programmable strength
PIO3 Programmable input/output line
internal pull-up/down
CMOS output, tri-state, with
weak internal pull-down
9 PCM_OUT
Synchronous Data Output
10
11
MIC_RP
MIC_RN
Analogue
Analogue
Microphone input positive, right
Microphone input negative, right
Shanghai Ehong Technologies Inc