Hi-Link HLK-LD2420 Benutzerhandbuch - Seite 6

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HLK-LD2420

3.hardware description

The picture below shows the front and back photos of the module. Module reserved5A pin hole (the factory does not match the pin) is calledJ2, for power supply and communication;J1for

SWDinterface forMCUProgram burning and debugging.

name

J#PIN#

GND

J1Pin1

DIO

J1Pin2

CLK

J1Pin3

3V3

J1Pin4

name

J#PIN#

3V3

J2Pin1

GND

J2Pin2

OT1

J2Pin3

J2Pin4

OT2

J2Pin5

illustrate:J1,J2Interface pin spacing2.54 mm.

HLK-LD2420supportKeil 5 IDEburninghexfile or source code project, you can useJ-Link (V9above version),

CMSIS-DAPWait for the programmer to download the program. Please make sure it is installed before burningPuya.PY32F0xx_DFP.1.1.0.pack.

front

picture3-1The physical picture of the front and back of the module

surface3-1 J1Pin Description

SWD interface data cable

SWD interface clock line

surface3-2 J2Pin Description

IO, used to report the detection status: high level means there are people, low level means no one

Function

grounding

power input

Function

power input

grounding

UART_TX

UART_RX

4total pages15Page

user manual

reverse side

illustrate

0 ~ 3.3V

3.0V ~ 3.6V, Typ.3.3V

illustrate

3.0 V ~ 3.6 V, Typ.3.3 V

0 ~ 3.3V