Hangzhou Gubei Electronics Technology BL1205 P Users manual

BiTrend™ EssentialSeriesWi-Fi Module

Datasheet

BL1205-P

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Hangzhou Gubei Electronics Technology Co., Ltd.

Copyright Information

The information contained in this document is the proprietary information of Hangzhou Gubei
Electronics Technology Co., Ltd. (hereinafter referred as BroadLink). Further, no portion of this
document may be altered or edited in any form or by any meanswithout the prior written
consent of BroadLink, the copyrightholder.

Further BroadLink reserves the right to make modifications, additions anddeletions to this
document due to typographical errors, inaccurate information, orimprovements to products
mentioned in the document at any time and without notice. Such changes will, nevertheless be
incorporated into new editions of this document or published as errata sheet.

Version History

1.0

11/6/2017

Preliminary version

1.1

11/29/2017

Corrected some parameters

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Table of Contents

1. Introduction ................................................................................................................................. 3

1.1 Overview ............................................................................................................................ 3

1.2 Applications ....................................................................................................................... 4

1.3 Key Features ...................................................................................................................... 4

2. Product Overview ....................................................................................................................... 5

2.1 Product Picture ................................................................................................................. 5

2.2 Block Diagram ................................................................................................................... 5

3. Electrical Characteristics ............................................................................................................. 6

3.1 Absolute Maximum Ratings – Voltage & Current ........................................................ 6

3.2 DC Voltage and current ................................................................................................... 6

4. RF Characteristics ........................................................................................................................ 7

5.Mechanical Characteristics ......................................................................................................... 9

6. Module Interfaces ..................................................................................................................... 10

6.1 PIN Layout ....................................................................................................................... 10

6.2 PIN Definitions ................................................................................................................ 10

7. Reference Design ...................................................................................................................... 11

Power supply requirements ............................................................................................ 11

8. AntennaCharacteristics ............................................................................................................ 12

8.1 Antenna Selection .......................................................................................................... 12

8.2 Minimizing Radio Interference .................................................................................... 13

9. removable sticker ........................................................................................................................ 14

Appendix A Glossary（Quentin respible） ............................................................................... 14

Appendix B Reference paper（Quentin respible） .................................................................. 16

Contact Us ..................................................................................................................................... 17

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1. Introduction

1.1 Overview

BiTrend™ Essentialis 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.

BiTrend™ Essential family combines a 2.4Ghz 802.11 b/g/n radio transceiver with a 32-bit
microprocessor and embedded with MAC, baseband processing and optimized Wi-Fi network
stack. 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.

Benefitted from BroadLink’s turn-key solution, BiTrend™ Essential is an ideal solution for
developers with limited Wi-Fi or RF expertise or for those seeking faster time to market. It

reduces RF design time and removes the burden of testing and certification. BiTrend™ Essential

is fully compliant with IEEE 802.11 b/g/n standard and certified with CE, FCC and RoHS.

BiTrend™ Essential is a highly integrated Wi-Fi SoC(system on Chip) single chip, which
supportsIEEE802.11b/g/n single stream, providing GPIO for intelligent control, and UART
interfaces for device communication.

BiTrend™ Essential has 8Mbits flash and integrates power amplifier, low noise amplifier, and RF
switch to reduce the module size and RF design capability required. And also integrate power
manage unit for single 3.3V power source for cost effective design.

BiTrend™ Essential embedded 32-bit RISC MCU for 802.11b/g/n drivers, supplicant, TCP/IP
protocol stack, and networking applications, can be operated in station mode and softAP mode.
The BL1205-P is an ideal solution for embedded device to enable networking service with
minimized design effort.

RF

receiver

RF

transmitter

Baseband

MAC /

Packet
buffer /
security

engine

UART

System
control

RF_IN

RF_OUTP

RF_OUTN

UART

GPIO/LED

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1.2 Applications

 Smart home appliances
 Remote Control
 Medical/Health Care
 Network consumer devices

1.3 Key Features

a． Support IEEE802.11b/g/n

Frequency range

2.412 GHz- 2.462 GHz

Wireless standard

IEEE 802.11 b/g/n

Radio power

802.11b:18dBm

802.11g:16dBm

802.11n:15dBm

Antenna
On board: PCB antenna

External: Not supported

Receiving sensitivity

802.11b<-83dBm@11Mbps

802.11g<-72dBm@54Mbps

802.11n<-71dBm@MCS7

Supported stacks

IPv4, TCP/UDP/FTP/HTTP/HTTPS/TLS/mDNS

Data rate (max)

11M@802.11b, 54M@802.11g, MCS7@802.11n

Security support

Encryption standard:
Open/WEP-Open/WPA/WPA2
Encryption algorithm: WEP64/WEP128/TKIP/AES

Wi-Fi Modes

STA/AP/STA+AP/WIFI Direct

b． Support UART\PWM\ADC\GPIO\I2C
c． Support STA\AP\AP+STA
d． Patent Smart Config™ technology
e． Support TLS\SSL\mDNS
f． PCB printed antenna

Antenna type

PCB printed ANT

g． Power source: 12V

Dimension Dimensions: L 35.5（-0.1~+0.35）mm * W 19.5（-0.1~+0.35）mm * H
(5.3±10%)mm (USB port)

h． ESD: 2KV

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2. Product Overview

2.1 Product Picture

2.2 Block Diagram