Hardware Design

[中文版]

Module Pin Diagram

bt630x

Pin Description

Pin

Pin Name

Type

Pin Descriptions

1

UART_TX

O

UART Data Pin

2

UART_RX

I

UART Data Pin

6

RESET

I

Active-Low Reset

7

VDD

Power

3.3V Power Supply.<LDO power supply is recommended

8

GND

GND

GND

9

SWCLK

I/O

Programming Pin

10

SWDIO

I/O

Programming Pin

7

WAKE_UP

I

When MCU pulls high, the module enters sleep mode.
when MCU pulls low, the module exits sleep mode

17

LED

O

Outputs square wave when Bluetooth is disconnected.
outputs high level when Bluetooth is connected

18

STATUS

O

Outputs low level when Bluetooth is disconnected.
outputs high level when Bluetooth is connected.

20

EXT_ANT

ANT

Changing the 0Ω resistor near the antenna allows external Bluetooth antenna connection

Hardware Design Note

  • The module can be used by simply connecting VDD / GND / STATUS / UART_RX / UART_TX.

  • If the MCU needs to obtain the connection status of the Bluetooth module, the STATUS pin needs to be connected

  • After completing the schematic diagram, please send it to Feiyitong for review to avoid the Bluetooth distance not reaching the optimal effect

  • The module supports wake-up via UART

  • VDD/GND/RESET/SWCLK/SWDIO are programming ports, and test points can be reserved