JDY 40 English Manual

JDY-40_English_manual

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JDY-40 wireless serial port module

Brief function introduction
JDY-40 is developed by 2.4G technology, with a distance of 120 meters. It uses serial
communication interface, which is simple and quick to use. You can apply JDY-40 to
products only needs to know the knowledge of serial port.
JDY-40 pin definition

Pin function description
Pin

Pin Names

Function

1

GPIO1

Input/output IO, which can be configured by AT+CLSS

2

GPIO2

Input/output IO, which can be configured by AT+CLSS

3

GPIO3

Input/output IO, which can be configured by AT+CLSS

4

GPIO4

Input/output IO, which can be configured by AT+CLSS

5

GPIO5

Input/output IO, which can be configured by AT+CLSS

6

GPIO6

Input/output IO, which can be configured by AT+CLSS

7

GPIO7

Input/output IO, which can be configured by AT+CLSS

8

GPIO8

Input/output IO, which can be configured by AT+CLSS

9

VCC

10

RXD

Serial port input pin

11

TXD

Serial port output pin

12

SET

AT command switching pin (low level AT instruction, high level
transparent transmission)

13

CS

CS chip select pin (low level of awaken, high level of sleep)

14

GND

Power Ground

Power Supply（2.2V–3.6V）

Application scene
1：2.4G panel switch
2：2.4G remote controller
3：2.4G transparent transmission
4：Mobile phone one-to-many control
5：IO switching control
6：2.4Gtoys
7：Application of intelligent home control

Technical parameter
Model

JDY-40

Operating frequency range

2.4G

Transmit power

MAX 12db

Working temperature

-40℃ - 80℃

Reception sensitivity

-97db

Transmission distance

120meters

TX current

40mA

RX current

24mA

Sleep current

5uA

Communication interface

Standard TTL serial port

Dimensional drawing

Default configuration
Sequence

Function

Parameter

instructions

1

Baud rate

9600

AT+BAUD

2

Wireless ID

8899

AT+RFID8899

3

Device ID

1122

AT+DVID1122

4

Channel

001

AT+RFC001

5

Transmit power

12db

AT+POWE9

6

Device type

A0

AT+CLSSA0

AT instruction set
Sequence

instructions

Effect

Default

1

AT+BAUD

Baud rate

9600

2

AT+RFID

Wireless ID

8899

3

AT+DVID

Device ID

1122

4

AT+RFC

Channel（128 Channels）

001

5

AT+POWE

Transmit power

+10db

6

AT+CLSS

Type

A0

AT instruction instructions
In particular, the JDY-40 module sends the AT instruction need to end the symbol \r\n
Setting / query - baud rate
Instruction

Response

AT+BAUD

OK

AT+BAUD

+BAUD=

Parameter
Param(1-7)
1:1200
2:2400
3:4800
4:9600
5:14400
6:19200
Default Value: 4

RFID Setting / query - RFID
Instruction

Response

Parameter

AT+RFID

OK

AT+RFID

+BAUD=

Param(0000-FFFF)
Default Value:8899

Instruction

Response

Parameter

AT+DVID

OK

AT+DVID

+BAUD=

Param(0000-FFFF)
Default Value:8899

Instruction

Response

Parameter

AT+RFC

OK

AT+RFC

+RFC=

Param(001-128)
Default Value:001

Setting / query - DVID

RFC

Setting / query - RFC

POWE

Setting / query - POWE
Instruction

Response

AT+POWE

OK

AT+POWE

+POWE=

Parameter
Param(0-9)
0：-25db
1：-15db
2：-5db
3：0db
4：+3db
5：+6db
6：+9db
7：+10db
8：+10db
9：+12db

Setting / query – CLSS type
Instruction

Response

AT+CLSS

OK

AT+CLSS

+CLSS=

Parameter
Param
A0: Serial port transparent
transmission(Transceiver)
C0: Remote controller or IO key
indicator light(Transmitting terminal)
C1: remote controller or IO key
without indicator light (Transmitting
terminal)
C2:IO is low level at normal level,
high level after receiving signal and
low level after delay 30mS
C3:IO is high level at normal level,
low level after receiving signal and
high level after delay 30mS
C4:IO is low level at normal level,
receives pressed signal of high level
and receives lift signal low level
C5: The IO level is reversed when
IO receives the pressed signal.
Default Value:A0

JDY-40 application wiring diagram
Serial port transparent transmission application circuit diagram
It can be applied to MCU and MCU wireless serial port transparent transmission,
instrument and electronic toys.

Mobile phone one-to-many control
It can be applied to mobile phone one-to-many control, mobile phone one-to-many
transparent transmission, mobile phone one-to-many application of intelligent
furniture control.

Switching control 1

It can be applied to: the 2.4G remote controller with 8 IO can be applied to the remote
control key and support the low function, two 7th batteries can be used for at least one
year, application of low power consumption switch panel in intelligent home, and 2.4G toy
application.

Switching control 2
It can be applied to: the 2.4G remote controller with 7 IO can be applied to the remote
control key and support the low function, two 7th batteries can be used for at least one
year, application of low power consumption switch panel in intelligent home, and 2.4G toy
application.

Switching control 3
It can be applied to: the 2.4G remote controller with 8 IO can be applied to the remote
control key and support the low function, two 7th batteries can be used for at least one
year, application of low power consumption switch panel in intelligent home, and 2.4G toy
application.



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Page Count                      : 8
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Author                          : Administrator
Creator                         : Microsoft? Office Word 2007
Create Date                     : 2018:04:20 17:30:14+08:00
Modify Date                     : 2018:04:20 17:30:14+08:00
Producer                        : Microsoft? Office Word 2007

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