BL-73B WiFi+Bluetooeh
BL-73B is a WiFi+BLE+speech recognition module composed of wifi+ble single chip SoC(BL602) and speech chip. the core processor BL602 of the module integrates the baseband and MAC design of 2.4G Wi-Fi
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BL-73B is a WiFi+BLE+speech recognition module composed of wifi+ble single chip SoC(BL602) and speech chip. the core processor BL602 of the module integrates the baseband and MAC design of 2.4G Wi-Fi
BL-73B is a WiFi+BLE+speech recognition module composed of wifi+ble single chip SoC(BL602) and speech chip. the core processor BL602 of the module integrates the baseband and MAC design of 2.4G Wi-Fi (802.11b/g/n) and BLE 5.0. Its microcontroller subsystem includes a 32-bit RISC CPU with low power consumption, cache and memory. Integrate large on-chip memory and rich peripheral resources to facilitate users to develop IOT applications; Support single-wheat high-precision offline speech recognition, and quickly customize wake-up words and command words; On-board 3W audio amplifier; BL-73B module supports the standard IEEE802.11 b/g/n protocol and RTOS, and has a complete TCP/IP protocol stack. Users can use this module to develop voice recognition applications with networking function for existing devices, and can also use it as the main controller to design wireless network products, which can be quickly applied to smart homes, various smart small household appliances, 86 boxes, toys, lamps and other products requiring voice control.
1.2.1 wireless
IEEE 802.11b/g/n, 1x1 SISO 2.4GHz
Bluetooth low energy consumption 5.0 supports BLE 5.0 channel selection # 2
Wi-fi 20mhz bandwidth
Wi-fi security wps/WEP/wpa/wpa2 personal/wpa2 enterprise/wpa3
Sta, SoftAP and STA+SoftAP mode
Wi-Fi and BLE coexist, and BLE helps to realize wi-fi fast connection
Integrated balun, PA/LNA
Support Smart Config/AirKiss (WeChat) one-click distribution network
Support serial port local upgrade and remote firmware upgrade (FOTA)
The general AT instruction can quickly get started to support secondary development, and integrates Windows and Linux development environments
1.2.2 MCU subsystem
32-bit RISC CPU with FPU (Floating Point Unit)
An RTC timer is updated every year
Two 32-bit general timers
The four DMA channels
Dfs (dynamic frequency scaling) ranges from 1MHz to 192MHz
JTAG development support
Xip qspi flash has hardware encryption support
1.2.3 memory
276KB RAM
128KB ROM
1Kb eFuse
Embedded Flash memory (optional)
1.2.4 safety mechanism
Qspi flash instant AES decryption (OTFAD)- AES-128, CTR mode
Support AES 128/192/256-bit encryption engine
SHA-1/224/256 is supported
True random number generator (TRNG)
Public Key Accelerator (PKA) 1.2.5 Voice
Built-in 3W, Monophonic Class D Amplifier
Supports 1 electret microphone
Support fast customization of up to 100 voice commands