Offline Voice Control Module

Pin Number

Pin Name

Functional Description

1

GND

GND

2

SPK_MUTE

Amplifier MUTE output pin, high level for quiet, low level for working

3

DC5V

DC5V module power input

4

VDD_3V3

The module has an internal LDO 3.3V output, which can be used to supply power to small load peripherals

5

GND

GND

6

GPIO_06

GPIO/I2S_SDI/I2C_SDA/UART_TX1/PWM0

7

GPIO_07

GPIO/I2S_LRCK/I2C_SCL/UART_RX1/PWM1

8

GPIO_08

GPIO/I2S_SCLK/PDM_DAT/UART_TX2/PWM3

9

GPIO_09

GPIO/I2S_SDO/PWM2,PG_ENBurn enable pin (high level to enter burn), it is recommended to reserve a test point

10

GPIO_10

GPIO/I2S_MCLK/PDM_CLK/UART_RX2/PWM4

11

UART_TX0

GPIO/UART_TX0/I2C_SDA/PWM1(Burning port, it is recommended to keep)

12

UART_RX0

GPIO/UART_RX0/I2C_SCL/PWM2(Burning port, it is recommended to keep)

13

MICR+

MIC input positive pole (choose this MICR as AEC input for echo cancellation)

14

MICR-

MIC input negative pole (choose this MICR as AEC input for echo cancellation)

15

MICL+

MIC input positive pole (single MIC and echo cancellation select this MICL as MIC input)

NO.

Name

Function

1

Long press the self-learning button.

1:Short press:

Short press to play the response voice corresponding to the previous command.

2:Long press:

Long press to initiate self-learning for the command associated with the response voice. In self-learning mode, a long press will exit the learning mode.

Note: The number of command entries should be ≤20.

2

Delete self-learning voice button.

1:hort press:

Short press to play the response voice corresponding to the next command.

2:Long press:

Long press to delete the self-learning data for the command associated with the response voice. In delete mode, a long press will exit the delete mode.

3

Speaker

1，The standard configuration is 8 ohms, 1 watt, with a default 2.0 terminal.

4

Battery

1，Reserved battery interface, default Type-C

5

Type-C

1，Default power supply via Type-C, with a reserved charging interface

6

USB

1，Power supply via 2.0 terminal (including Type-C to 2.0 terminal adapter) or Type-C, selectable

7

Upgrade interface

1，GND、DP、DM、VCC

8

LED light status display

1: BLE light on: Indicates successful Bluetooth connection.

2: DEL light on: Indicates deletion of self-learning voice.

3: LEARN light on: Indicates entering self-learning voice mode.

4: POWER light on: Indicates normal power supply.

9

Communication interface

1，VCC 、GND、TX、RX

10

Microphone(MIC) interface

1，Default 2.0 terminal; please note the positive and negative poles of the microphone (MIC).