RF-Star EFR32BG22, Manual

Page: 70 / 94

EFR32BG22
www.szrfstar.com V1.6 - Jun., 2022
Shenzhen RF-star Technology Co., Ltd.
Page 69 of 93
6 Transparent Transmission Test
6.1 Test by APP (Android)
1. Turn on the mobile phone’s Bluetooth function, and install APP “nRF Connect” (this APP can be found in the APP
store): The usage method of iOS version APP is similar to Android.
2. Connect the module to the COM port of the computer through the USB to serial port tool, and check the computer
port number used (step: right-click the computer → management → device manager → port).
Open the UartAssist tool, and set the correct port number and baud rate, the initial baud rate of the module is 115200
(the default baud rate of the module is 115200, the data bit is 8, the parity bit is none, and the stop bit is 1).
Open the nRF Connect to search (mobile phone’s Bluetooth needs to be turned on), and a list of nearby BLE devices
that are broadcasting will appear. Click on one of the BLE devices to start the connection process ( The default
factory name is: RFstar_XXXX ). After the connection is successful, the Service UUID of the module appears on
the mobile phone APP side, turn on the notify enable for receiving and AT command operation, and then the bi-
directional data transparent transmission and AT command between the mobile phone and the PC (analog MCU)
will be started. As shown in the following pictures: