. Shenzhen Hi-Link Electronic Co., Ltd. Manual
1. Product description
HLK-B20 is an new low-consumption Bluetooth BLE 4.2 control module made by Hi-Link. This
product is a Bluetooth-compliant module based on universal serial interface. It has built-in BLE 4.2
protocol stack, which can realize data conversion between user serial port and Bluetooth interface.
1.1. Basic parameters
High-speed ARM9E core MCU
2.4G/1T1R, BLE 4.2
160k programming space, 20KB RAM
Power supply voltage 0.9-3.6v
Ultra low supply voltage, low power consumption
Built-in crystal, high stability
Small chip package 4x4
Rich peripheral interface, SPI, I2C, ADC, UART, PWM, GPIO
Widely used in the Internet of Things
High-speed 10-bit multi-channel ADC with internal filtering
Easy to connect, fast speed
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