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Shenzhen Hi-Link Electronic
Co.,Ltd
4. Software description
This chapter introduces the firmware debugging of HLK-LD2410S and the use of upper
computer tools. When commissioning or using a millimeter wave sensor, the upper computer can be
powered by the USB serial port adapter. At the same time, TX, RX, and GND of the millimeter
wave sensor can be connected to the corresponding ports on the USB serial port adapter board. (For
details about the pin connection between the sensor and the USB serial port adapter, see Table 4-1.)
The user can also use the panel power supply, and connect the TX, RX and GND of the panel to the
corresponding interface of the USB serial port adapter board (the TX, RX and GND of the panel are
connected to the corresponding pins of the sensor with the same name). Because the connection
modes of the two power supply modes are similar, this chapter only describes the method of using
the upper computer power supply.
HLK-LD2410S factory has burned low-power human presence sensor algorithm firmware,
firmware version see the sensor packaging. Hi-Link provides visual upper computer configuration
tool software for hardware LD2410S, which is convenient for developers to configure parameters of
HLK-LD2410S according to the use scenario and optimize the induction effect.
4.1. Firmware Configuration
This section describes the way to debug the sensor HLK-LD2410S firmware using a third-party
serial port tool.
Step 1. Connect the host computer to the millimeter wave sensor through the USB-to-TTL
serial port adapter board. Table 4-1 and Figure 4-1 show the pin connections;
Table 4-1 Pins mapping between a millimeter wave sensor and a USB serial port adapter
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