Hangzhou Gubei Electronics Technology BL3335T P User Manual

World’s leading smart home solution provider

Features

Support IEEE802.11 b/g/n standards

Support WEP, WPA and WPA2 encryption

Support UART/PWM/ADC/GPIO/I2C

interfaces

Support STA/AP/AP+STA modes

 Support SmartConfig

 Support TLS/SSL protocols

Support PCB antenna

3.3V power supply

 Wi-Fi related features

 Support 802.11 b/g/n with 20M

and 40M bandwidth

 Support station and soft AP

 Support SmartConfig and AP

configuration

 Integrated balun/PA/LNA

 TCP/IP stack optimized for IoT

application

 PCB antenna

 Peripheral

 2x UART

 1x I2C

 1x SPI

 4x PWM

 Up to 14GPIOs

 Working temperature: -10℃ to +105℃

 Stamp style SMD for surface mounting

production

Applications

Smart transportation

Smart home / appliances

Instruments

Health care

Industrial automation

Intelligent security

Smart energy

BL3335T-P

Version：1.0 Release date：Jan 12, 2018

Embedded

Product

Models

Model Antenna type Note

BL3335T-P

PCB antenna Default

Content

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1. Overview

2. Basic Specifications

2.1. Power Consumption

2.2. Working Environment

3. Radio Specifications

3.1. Basic Radio Specification

3.2. Radio Performance

3.2.1. IEEE 802.11b

3.2.2. IEEE 802.11g

3.2.3 IEEE802.11n

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4. BL3335-P Hardware Information

4.1. Footprint Sequence

4.2. Footprint Definitions

4.3. PCB Antenna

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4.4. Mechanical Dimensions

4.5. Recommended Pad Size

5. Reference Design

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5.1. UART Interface Design

5.2. Power Supply Requirement

Revision History

Copyrights

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1. Overview

BL3335T-P is a cost-effective embedded Wi-Fi module designed by BroadLink, which

supports 802.11 b/g/n standards and UART communication with other devices. The module

integrates radio transceiver, MAC, baseband, all Wi-Fi protocols, configurations and network

stack. It can be widely used in applications like smart home devices, remote monitoring devices

and medical care instruments.

The module integrates an ARM Cortex-M4 processor speed up to 160MHz with 352KB SRAM

and 1MB flash.

2. Basic Specifications

2.1. Power Consumption

Please refer to Table 1 for power consumption data.

Table 1 BL3335T-P Power Consumption Data

Specifications Min. Typ. Max. Units

VDD

VIL(input low voltage) 0 0.3VDD V

VIH(input high voltage) 0.7VDD VDD V

VOL(output low voltage) 0 V

VOH(output high voltage) VDD V

Io 10 mA

Standby (SP mini) 80 85 mA

pulse current @TX

11b @17dBm 11Mbps

pulse current @TX

11g @15dBm 54Mbps

pulse current @TX

11n @14dBm 65Mbps

Networking 305 mA

3.3 4

305 mA

250 mA

225 mA

Note: Make sure VDD is not lower than 3.3V

2.2. Working Environment

3. Radio Specifications

Please refer to Table 2 for working environment data.

Table 2 BL3335T-P Working Environment Data

Symbol Description Min. Max. Units

Ts Storage temperature -40 125

TA Ambient operating temperature -10 105

Vdd Supply voltage

Vio Voltage on IO pin 0 VDD V

ESD HBM 1000 2000 V

3.3 4

℃

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3.1. Basic Radio Specification

Please refer to Table 3 for radio specification.

Table 3 BL3335T-P Radio Specification

Radio range Wireless standards

Radio output

Antenna type

Receiving sensitivity

Stack

Data rate (max)

Security

Network types

2.412 GHz - 2.462 GHz

IEEE 802.11 b/g/n

802.11b :18dBm ± 1dBm

802.11g :14dBm ± 1dBm

802.11n :14dBm ± 1dBm

Internal: PCB antenna External: Not supported

802.11b<-83dBm@11Mbps

802.11g<-72dBm@54Mbps

802.11n<-71dBm@MCS7

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

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

Encryption standard:

Open/WEP-Open/WPA/WPA2

Encryption algorithm:

WEP64/WEP128/TKIP/AES

STA/AP/STA+AP/WIFI Direct

3.2. Radio Performance

3.2.1. IEEE 802.11b

Table 4 Basic specifications under IEEE802.11b

ITEM Specification

Modulation Type DSSS / CCK

Frequency range

Channel CH1 to CH11

Data rate 1, 2, 5.5, 11Mbps

Table 5 Transmitting performance under IEEE802.11b

TX Characteristics Min. Typical Max. Unit

Power@11Mbps

Frequency Error

-10 +10 ppm

2412MHz~2462MHz

18 dBm

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EVM@11Mbps

Transmit spectrum mask

Pass

Table 6 Receiving performance under IEEE802.11b

RX Characteristics Min

Minimum Input Level Sensitivity

11Mbps (FER≦8%)

Maximum Input Level (FER≦8%)

Typical Max. Unit

3.2.2. IEEE 802.11g

Table 7 Basic specifications under IEEE802.11g

ITEM Specification

-20 dB

-83

-3 dBm

dBm

Modulation Type OFDM

Frequency range

2412MHz~2462MHz

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Channel

Data rate

Table 8 Transmitting performance under IEEE802.11g

TX Characteristics Min. Typical Max. Unit

Power@54Mbps

Frequency Error

EVM@54Mbps

Transmit spectrum mask

Pass

Table 9 Receiving performance under IEEE802.11g

RX Characteristics Min. Typical Max. Unit

Minimum Input Level Sensitivity

54Mbps

Maximum Input Level

-10 +10 ppm

CH1 to CH11

6, 9, 12, 18, 24, 36, 48, 54Mbps

14 dBm

-30 -29 dB

-71

-8

dBm

(FER≦10%)

3.2.3 IEEE802.11n

IEEE802.11n 20MHz bandwidth mode

Table 10 Basic specifications under IEEE802.11n with 20MHz

ITEM Specification

Modulation Type OFDM

Frequency range

Channel

Data rate

2412MHz~2462MHz

CH1 to CH11

MCS0/1/2/3/4/5/6/7

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