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HLK-B40 is a kind of Master-Slave serial port transmission Bluetooth-compatible module based on BLE5.1
All kinds of devices with serial port can use Bluetooth-compatible wireless to send and receive data simply and quickly through this module.
The basic functions and features are as follows:
Main frequency 48MHz, 32-bit ARM Cortex M3 core
Fast and stable Bluetooth-compatible-serial port transmission,serial port rate up to921600
Master-to-one Bluetooth-compatible, which can be set to host orslave mode,supports binding encryption
Bluetooth-compatible from the machine mode can be connected byup to 20 host devicesat the same time, supporting custom broadcast data
Based on BLE5.1, it is faster and has a longer transmission distance and canreach 40 to 100 m in an open environment
Supportslow-power modes,sleep currents of up to6 μAand custom connection and broadcast intervals
Bluetooth-compatible transmit power can be adjusted up to 10dBm and receives up to -95dBm
Support for OTA Bluetooth-compatible wireless upgrade module firmware, wireless configuration module parameters
The default on-board high-quality ceramic antenna increases the transmission distance and includes an external antenna
Built-in Watchdog, Long and reliable operation time
Ultrasmall size 14mm×9.5mm×2mm
Wide operating voltage 1.8 to 4.2V,typical 3.3V
Rich output pins (UART, I2C, SPI, up to 15 GPIOs, up to 4 ADCs, up to 6 PWMs) provide flexible and in-depth hardware and software custom development services
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
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HLK-B40 Specifications
The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
