NBL1064-dat
Info
product url - Bluetooth IO Control Board EDR 2.0, BLK_IO
Board Map, Dimension, Pins, chip info, Use Guide, Setup Jumper, etc.

on board chip STM8-dat - MCU-dat - demo code find at STM8-SDK-dat
Board V2
- BT-dual-mode-dat supported

serial communications
- 2
UART1_TX/AIN5/HS PD5 - 3
UART1_RX/AIN6/HS PD6 - module ATC == - 17 PC7 (HS)/SPI_MISO [TIM1_CH2]1
Applications, category, tags, etc.
Demo Code and Video
ref
https://www.electrodragon.com/w/Category:Bluetooth_2.0#AT_Commands