World’s leading smart home solution provider BL3389-P Embedded Product Wi-Fi Module Version：1.0 Release date： June，16, 20,21 Manual Features ⚫ Support IEEE802.11 b/g/n standards ⚫ Working temperature: -10℃ to +85℃ ⚫ Support BLE 5.0 ⚫ Stamp style SMD for surface mounting ⚫ Support WEP, WPA and WPA2 encryption production ⚫ Support UART/PWM/ADC/GPIO/I2C interfaces Applications ⚫ Support TLS/SSL protocols ⚫ Support PCB antenna ⚫ 3.
-2Content 1. Overview............................................................................................................................ - 3 2. Basic Specifications............................................................................................................ - 3 2.1. Power Consumption ................................................................................................... - 3 2.2. Working Environment .........................................................................
-3- 1. Overview BL3389-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.
-4- 2.2. Working Environment Please refer to Table 2 for working environment data. Table 2 BL3389-P Working Environment Data Symbol Description Min. Max. Units Ts Storage temperature -40 125 ℃ TA Ambient operating temperature -10 85 ℃ Vdd Supply voltage 3.3 3.6 V Vio Voltage on IO pin 0 VDD V 3. Radio Specifications 3.1. Basic Radio Specification Please refer to Table 3 for radio specification. Table 3 BL3389-P Radio Specification Frequency Band 2400MHz – 2483.
-5- 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 2412MHz~2462MHz Channel CH1 to CH11 Data rate 1, 2, 5.5, 11Mbps Table 5 Transmitting performance under IEEE802.11b TX Characteristics Min. Typical Max. dBm 14 Power@11Mbps -20 Frequency Error Unit EVM@11Mbps +20 ppm -15 dB Transmit spectrum mask Pass Table 6 Receiving performance under IEEE802.
-66, 9, 12, 18, 24, 36, 48, 54Mbps Data rate Table 8 Transmitting performance under IEEE802.11g TX Characteristics Min. Typical Max. 11.5 Power@54Mbps dBm -20 Frequency Error Unit EVM@54Mbps +20 ppm -29 dB Transmit spectrum mask Pass Table 9 Receiving performance under IEEE802.11g RX Characteristics Min. Typical Max. Unit -75 dBm Minimum Input Level Sensitivity 54Mbps 3.2.3 IEEE802.11n IEEE802.11n 20MHz bandwidth mode Table 10 Basic specifications under IEEE802.
-7Frequency Error -20 EVM@HT20, MCS7 +20 ppm -29 dB Transmit spectrum mask Pass Table 12 Receiving performance under IEEE802.11n with 20MHz RX Characteristics Min. Typical Max. Unit -71 dBm Minimum Input Level Sensitivity MCS7 4. BL3389-P Hardware Information 4.1. Footprint Sequence Please refer to Fig 1 for the footprint sequence of BL3389-P.
-8- Fig 1 BL3389-P Footprint sequence 4.2. Footprint Definitions Please refer to Table 13 for the footprint definitions of BL3389-P.
-911 12 13 14 GPIO1 GPIO2 VDD GND SPI, I2C, UART, PWM, GPIO SPI, I2C, UART, PWM, GPIO Note: 1. In default, UART2 (pin4 and pin5) are used for bypass communication and UART0 (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. The module is powered on when GPIO8 is pulled up, it enters the burning mode 4.3. PCB Antenna for PCB antenna.
- 10 - Module Device PCB Fig 2 BL3389-P Recommended PCB layout 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 Fig 3.
- 11 - External MCU Wi-Fi module Capacitor Grounding Fig 3 Circuit diagram (3.3V) If your device is powered by 5V, you can refer to the circuit shown in Fig Fig 4 or design your own circuit for power conversion. The value of resistor can be adjusted according to actual circuit design.
- 12 - 5.2. Power Supply Requirement If an LDO is used to supply the module with 3.3V power, C1 capacitor can be considered to be used with 10u-22u; If a DCDC is used to supply 3.3V power, C1 capacitor can be considered to 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 transmission.
- 13 - Revision History Date June 16, 2021 Version 1.0 Updated Content Preliminary version Copyrights It is prohibited to use or copy all or any part of contents in this manual without prior permission, especially applicable for trademarks, models, part numbers and figures. Contact Us Ms Zhou Hangzhou Gubei Electronics Technology Co., Ltd. Add: Room 106, Building 1, No. 611 Jianghong Road, Binjiang District, Hangzhou, P.R.China Postcode: 310052 Tel: 0571-85071744-8010 Email: bingqi.zhou@broadlink.
- 14 - 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.
- 15 Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radioexempts de licence.
- 16 (1) Operational use conditions ***if your module has professional users use condition limitations, please keep below sentence here Module has professional users use condition limitations, Host product manufacturer please ensure giving such warning like “Product is limited to professional users use” in your product’s instruction. (2) Antenna used Antenna Type Brand/ manufacturer Model No. PCB Hangzhou / BroadLink Technology Co.,Ltd (3) Notice to Host Product Manufacturer Max.
- 17 other FCC rules that apply to the host not covered by the modular transmitter grant of certification. Host manufacturer in any case shall ensure host product which is installed and operating with the module is in compliant with Part 15B requirements. Please note that For a Class B or Class A digital device or peripheral, the instructions furnished the user manual of the end-user product shall include statement set out in §15.
