Product Manual

ManualsBrandsHangzhou BroadLink Technology ManualsElectronicsWiFi Module

World's leading smart home solution provider

Features

/4MB FLASH

，MD5，SHA1

-Fi related features

standard

configuration

TCP/IP stack optimized for IoT

application

℃ to +85℃

mounting production

Applications

Smart transportation

Smart home / appliances

Instruments

Health care

Industrial automation

Intelligent security

Smart energy

Model

Antenna type

Note

BL3372-P

PCB antenna

Default

WiFi Module

Version：1.3 Release date： 30/6/2022

BL3372-P

Product

Manual

Summary of content (20 pages)

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World's leading smart home solution provider BL3372-P Version：1.
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-2- Content 1. Overview............................................................................................................................................ - 3 2. Basic Specifications ....................................................................................................................... - 3 2.1. Power Consumption ............................................................................................................. - 3 2.2. Working Environment .................................
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-3- 1. Overview BL3372-P is a cost-effective embedded Wi-Fi module designed by BroadLink, highly integrated with 32-bit MCU speed up to 100MHz, 256KB SRAM, 4MB pSRAM and 2MB or 4MB flash, with 3.3V power supply. 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. 2. Basic Specifications 2.1.
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-411n @16dBm 65Mbps BLE @5.5dBm 160 mA 2.2. Working Environment Please refer to Table 2 for working environment data. Table 2 BL3372-P Working Environment Data Symbol Description Min. Max. Units Ts Storage temperature -40 125 ℃ TA Ambient operating temperature 0 85 ℃ Vdd Supply voltage 3.0 3.6 V Vio Voltage on IO pin 0 3.6 V BroadLink 3. Radio Specifications 3.1. Basic Radio Specification Please refer to Table 3 for radio specification.
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-5802.11g≦-76dBm@54Mbps 802.11n/HT20≦-73dBm@MCS7 BLE ≦- 98dBm Stack IPv4, TCP/UDP/FTP/HTTP/HTTPS/TLS/mDNS Data rate (max) 11M@802.11b, 54M@802.11g, MCS7@802.11n Encryption standard: Open/WEP-Open/WPA/WPA2 Security Encryption algorithm: WEP64/WEP128/TKIP/AES Network types STA/AP 3.2. Radio Performance 3.2.1 IEEE802.11b BroadLink Table 4 Basic specifications under IEEE802.
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-6Table 6 Receiving performance under IEEE802.11b RX Characteristics Min Typical Max. Unit -90 dBm . 11Mbps Input Level Sensitivity Minimum Input Level (FER≦ 8%) 3.2.2. IEEE 802.11g Table 7 Basic specifications under IEEE802.11g ITEM Specification Modulation Type OFDM Frequency range 2412 MHz~ 2462 MHz Channel CH1 to CH11 BroadLink Data rate 6, 9, 12, 18, 24, 36, 48, 54Mbps Table 8 Transmitting performance under IEEE802.11g TX Characteristics Min.
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-7- 3.2.3 IEEE802.11n IEEE802.11n 20MHz bandwidth mode Table 10Basic specifications under IEEE802.11n with 20MHz ITEM Specification Modulation Type OFDM Frequency range 2412 MHz~ 2462 MHz Channel CH1 to CH11 Data rate MCS0/1/2/3/4/5/6/7 Table 11 Transmitting performance under IEEE802.11n with 20MHz TX Characteristics Power@HT20, MCS7 Frequency Error Min. Typical Max. Unit BroadLink 14.5 17.
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-8- 4. BL3372-P Hardware Information 4.1. PIN Sequence Please refer to Fig 1 for the pin sequence. BroadLink Fig 1 BL3372-P pin sequence 4.2. PIN Definitions Please refer to Table 13 for pin definitions.
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-911 12 13 14 15 16 17 18 GPIO19 GPIO20 VDD GND GPIO1 GPIO4 GPIO3 GPIO2 PWM7 PWM0 TX1 RX1 Table PWM1 PWM4 PWM2 PWM3 SPI-MOSI SPI-MISO I2C-SDA I2C-SCL SD_D0 SD_D1 SPI-SCL SPI-CS 13 BL3372-P pin definitions Note: 1. In default, UART0 (pin4 and pin5) are used for bypass communication and UART2 (pin6 and pin7) are used for output of debugging information and burning firmware. Please refer to the description in DC Characteristics for UART output current level. 2.
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- 10 - Fig 2 BL3372-P Recommended PCB layout 4.4. Mechanical Dimensions BroadLink Please refer to Fig 3 for the dimensions of module. Fig 3 BL3372-P Module Dimensions Note: Dimensions (17.7±0.2) mm * (30±0.2) mm * (3.
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- 11 - 4.5. Recommended Pad Size Please refer to Fig 4 for the recommended pad size Fig 4 BL3372-P Recommended pad size 4.6. Certifications BroadLink 1. Certified for SRRC standard 2. Compliant with requirement of RoHS 2.0. 3. Compliant with requirement of REACH.
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- 12 - 4.7. Label Fig 5 BL3372-P label content Please refer to Fig 8 for the content description on label. Model: *******: Module model SN: 00ACA3FE75D7: Module unique MAC address QR code: Model No. BL3372-P, MAC, CMIIT ID and other info BroadLink 4.7. Shielding Case Dimensions Please refer to Fig 6 for the dimensions of shielding case.
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- 13 - (Unit: mm) Fig 6 BL3372-P Dimensions of shielding case 4.8. Packaging BroadLink Please refer to Fig 7 and Fig 8 for the details of packaging.
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- 14 - BroadLink Fig 8 Carton BL3372-P is packed in reel with 850 pcs/reel. 5. Reference Design 5.1. UART Interface Design For devices with 3.3V power supply, you can directly connect the device UART port with module UART port according to the illustration in Fig 12.
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- 15 - Fig 9 Circuit diagram (3.3V) If your device is powered by 5V, you can refer to the circuit shown in Fig 10 or design your own circuit for power conversion. The value of resistor can be adjusted according to actual circuit design.
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- 16 - 5.2. Power Supply Requirement If an LDO is used to supply the module with 3.3V power, C1 capacitor can be used with 10uF-22uF; If a DCDC is used to supply 3.3V power, C1 capacitor can be used with 22uF. It is recommended to supply the module with power higher than 400mA to ensure enough power supply to the module and avoid power down during data. The module is designed with 2x 3.3V pins. You can power the module with either pin or both pins.
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- 17 - Revision History Date Version Updated Content 1/7/2021 1.0 Preliminary version 3/1/2022 1.1 Added some electrical parameters 6/28/2022 1.2 Added IO multiplexing SDIO definition 7/1/2022 1.3 Added IO multiplexingSPI definition 8/25/2022 1.4 Add 4MB Flash spec option Copyrights It is prohibited to use or copy all or any part of contents in this manual without prior BroadLink permission, especially applicable for trademarks, models, part numbers and figures.
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- 18 - FCC Warning This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
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- 19 that is authorized with the intentional radiator may be marketed with, and used with, that intentional radiator. Note 5: To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuring compliance with the module(s) installed and fully operational.
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- 20 simultaneously without reassessment permissive change. Cet appareil et son antenne (s) ne doit pas être co-localisés ou fonctionnement en association avec une autre antenne ou transmetteur. This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.