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Serial port to WiFi+BLE5.2 Bluetooth module HLK-B35S dual-mode wireless serial port transmission test kit with low power consumption

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Product Introduction

HLK-B35S is a low-cost embedded UART WIFI (Serial Wireless Network) module launched by Hi-link Electronics. It is a WiFi+BLE combination chipset used for low-power and high-performance application development. This product is based on an embedded module that meets network standards through a serial interface, embedded with the TCP/IP protocol stack, capable of converting between user serial port and wireless network (WIFI/BLE).

Through the HLK-B35S module, traditional serial devices can transmit their data through the Internet network without changing any configuration, providing a complete and fast solution for users' serial devices to transmit data over the network.

Product Characteristics

  • The wireless subsystem includes 2.4G radio, Wi Fi 802.11b/g/n, and BLE5.2 baseband/MAC design, with main frequency support ranging from 1MHz to 160MHz

  • Built in 32-bit CPU, 288KB RAM, 2M embedded Flash memory

  • The working voltage supports 2.7-3.6V, with a typical value of 3.3V

  • BLE assists in achieving fast Wi Fi network distribution

  • Supports AP/STA and BLE coexistence modes, with WiFi security support for WPS/WEP/WPA/WPA2 Personal/WPA2 

  • Integrated Balun, PA/LNA

  • Rich peripheral interfaces, 1 * SPI master/slave, 2 * UART, 6 * PWM, 18 * GPIO, 1 * IIC master/slave

  • widely used in the Internet of Things

  • Receiving mode: 30mA, low-power standby mode: 200uA

Performance and electrical parameters

PackageDirect insertion
WIFI parameters
Wireless standardsIEEE 802.11 b/g/n BLE 5.2
Frequency range2.412GHz-2.484GHz
Transmission power11g - 6Mbps: 19 dBm
11g - 54Mbps: 18 dBm
11n - MCS0: 19 dBm
Receiver sensitivity11g - 6Mbps: -92 dBm
11g - 54Mbps: -76 dBm
11n - MCS0: -92 dBm
Antenna formExternal: I-PEX connector
Built in: Built in PCB antenna
BLE ParametersFrequency range2402~2480MHz
Output power0~10dBm Typical value: 8dBm
Receiver sensitivity-98dBm
Hardware parametershardware interface1*SPI master/slave,2*UART、6*PWM、18*GPIO、1*IIC
working voltageDC 2.7~3.6V Typical value: 3.3V
GPIO driver capabilityMax:12.8 mA
Working current requirements≥500mA
Module current peak400mA
No-load operating current30mA
operation temperature-40℃~85℃
Serial port transparent transmissiontransfer rate9600-921600bps
TCP Client1
Software parameters
wireless typleSTA/AP
Security mechanismWPS/WEP/WPA/WPA2 Personal/WPA2 Enterprise
Encryption TypeWEP64/WEP128/TKIP/AES
Network protocolIPv4, TCP/UDP,Lwip
User profileAT+instruction set



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