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Wi-Fi Module User Manual 

 

Model: WT1HB12  

V 1.5 

 

1. Product Overview 

1.1. Introduction 

BroadLink WT1HB12 is the industrial leading 2.4Ghz 802.11 b/g/n embedded Wi-Fi module 
which delivers unmatched performance and codeless development in a compact package, 
providing a quick, easy and cost effective way for developers and manufacturers to add Wi-
Fi connectivity for home automation, lighting control, energy efficiency and other IOT 
applications. 
 
WT1HBS12 combines a 2.4Ghz 802.11 b/g/n radio transceiver with MAC, baseband 
processing and optimized Wi-Fi protocols, configuration profile and network stack It 
supports UART communication with other devices and can be widely used in applications 
like smart home, remote monitoring and medical care. It is an ideal solution for developers 
and manufacturers with limited RF and embedded programming expertise as it significantly 
reduces RF design time and removes the burden of testing and certification. 
 
WT1HBS12 integrates a 32-bit RISC processor and an 8 Mbit flash which is capable for most 
of control-type IoT application. 

 

RF

receiver

RF

transmitter

Baseband

MAC / 

Packet 

buffer / 

security 

engine

UART

System 

control

RF_IN

RF_OUTP

RF_OUTN

UART

GPIO/LED

Figure 1. WT1SBSL block diagram

 

 

 

Summary of Contents for WT1HB12

Page 1: ...eband processing and optimized Wi Fi protocols configuration profile and network stack It supports UART communication with other devices and can be widely used in applications like smart home remote monitoring and medical care It is an ideal solution for developers and manufacturers with limited RF and embedded programming expertise as it significantly reduces RF design time and removes the burden...

Page 2: ... 63 VDD12 1 2V Supply Voltage 1 14 1 2 1 26 V VDD15 1 5V Supply Voltage 1 425 1 5 1 575 V 2 3 DC characteristics Symbol Parameter Conditions MIN MAX Unit VIL Input Low Voltage LVTTL 0 28 0 6 V VIH Input High Voltage 3 5 5 5 V VT Schmitt Trigger Negative Going Threshold Voltage LVTTL 0 68 1 36 V VT Schmitt Trigger Positive Going Threshold Voltage 1 36 1 7 V VOL Output Low Voltage IOL 1 6 14 mA 0 28...

Page 3: ... Sleep mode 2 mA IDLE mode 25 mA RX Active HT40 MCS7 50 mA RX Power saving DTIM 1 8 mA TX HT40 MCS7 15dBm 70 mA TX CCK 11Mbps 18dBm 80 mA Note All result is measured at the antenna port and VDD is 12V 2 5 Dimensions Module Tolerance L 0 2 W 0 2 H 10 unit mm ...

Page 4: ...Shield case Tolerance L 0 1 W 0 1 H 0 1 unit mm ...

Page 5: ... GND POWER Pin5 VDD Power input POWER 1 The TX and RX of UART0 are used for communication with external processor Please refer to Chapter 2 3 DC Characteristics for more information of output power level for UART 2 The module has built in RC reset and watchdog circuit 3 2 PCB Antenna The module supports PCB antenna Within the range of 2 4 2 5GHz the antenna output S11 is less than 10dB and gain of...

Page 6: ...The actual performance of S11 may vary due to PCB production and dielectric constant difference of FR 4 board ...

Page 7: ...R Floating Error GND Ground GPIO General Purpose Input Output HBM Human body model IEEE Institute of Electrical and Electrionics Engineers IO Input Output IOT Individual operation test IPv4 Internet Protocol version 4 LED Light emitting diode LVTTL Low Voltage Transistor Transistor Logic MAC Medium Access Control layer MCS Modulation and coding scheme MCU Microcontroller Unit MIMO Multiple Input M...

Page 8: ...miniature coaxial RF connector for high frequency signals manufactured by Hirose Electric Group VSWR Voltage Standing Wave Ratio WEP Wired Equivalent Privacy WEPA Welded Electronic Packaging Association WEP64 64 bit Wired Equivalent Privacy WEP128 128 bit Wired Equivalent Privacy WPA2 Wi Fi Protected Access 2 XTAL External Crystal Oscillator QAM Quadrature Amplitude Modulation 802 11 b g n The IEE...

Page 9: ...and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one ...

Page 10: ...d for OEM integrators only Please see the full grant of equipment document for restrictions Label Information to the End User by the OEM or Integrators If the FCC ID of this module is not visible when it is installed inside another device then the outside of the device into which the module is installed must be label with Contains FCC ID 2ACDZ WT1HB12 and IC 21239 WT1HB12 ...

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