User's Manual
Table Of Contents
- 1.Product Introduction
- 2.Function description
- 3. AT command instructions
- 3.1.Basic AT commands
- 3.2.WI-FI related AT commands
- 3.3.TCP/IP Related AT commands
- 3.3.8.Set the framing length of the serial port：at+uartp
- 3.3.9.Set the framing time of the serial port：at+uartpac
- 3.4.BLE related AT commands
- 3.5.Custom message prompt instruction
- Note：This type of command does not have a message
- The maximum length supports 30 bytes. Do not inclu
- 4.AT command control code example
- 5.Bluetooth distribution network and data transparen
- 6.Module power consumption measured data
- 7.Appendix A Document Revision History
User Manual
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HLK-B35
2.3. UART to WIFI AP
Pic 7 Module as AP
In AP mode, mobile phones, PCs or other wifi devices can be connected to the B35 module
through wifi, and serial devices can transmit data through the B35 module and other wifi devices.
2.4. Serial port working status conversion
After the HLK-B35 is powered on, the default is the transparent transmission mode. By pulling
down the pin ES0 (GPIO12) for less than 50ms to enter the at command mode, the module will treat
the received data as an at command, and send the at command to let The module enters the
transparent transmission mode. After the network is connected, the data received by the serial port
will be transmitted as transparent transmission data.
Pic 8 Serial port working mode conversion
AT commands
Power on
Transparent
trasmission mode
Pulling down Es0
Send AT commands