Data Sheet

Default firmware
PRBMD02 comes with default UART-BT firmware, allowing user able to enable their
product with BT feature without any extra engineer resources. The firmware basic feature
is to tunnel data between UART port and Bluetooth device (Transparent mode). User can
develop their own firmware by SDK as well if default firmware is not applicable.
AT-CMD and Transparent Modes
The firmware contains two modes: AT-CMD mode and Transparent mode. In AT-CMD
mode, PRBMD02 accepts AT-command from UART port and change the configuration;
in Transparent mode, ALL data from UART port will forward to Bluetooth and vice
versa.
PRBMD02 DATASHEET 1.10
K-SOLUTION
20
PRBMD02 with
default firmware
UART port
data from BLE appears on UART_TX pin automatically
data sent to UART_RX pin will automatically forward to BLE side
MCU
TRANSPARENT mode description
PRBMD02 with
default firmware
MCU
UART port
set Baud rate
set advertising name
set module GPIOs
AT-CMD mode description