Preparation

Download a comport communication software. Serial Port Assistant is the one our R&D team uses it for daily basics. You can also try Serial Debug Assistant from Microsoft Store. Connect TP-BT Bluetooth Optical Probe with your computer, write down the comport assigned to device.

Step 1

Step 2

Step 3

Enter AT Command in the command box:

`BaudTran,19200,N,8,0,`

Step 4

Important Notice:

This change valid until device turned off. Every time TP-BT restarted, baud rate will be reset to device default. The only way to change default baud permanently rate is to replace device firmware.

AT Command Reference:


Baud Rate:	4800 9600 19200 38400 57600
Parity	N: No parity
	E: Even Parity
	O: Odd Parity
Data Bits:	7 or 8
Stop Bits:	0 for 1 Stop bit
	1 for 1.5 Stop bit
	2 for 2 Stop bit