Product 
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. 
 
Technical 
Parameter 
 
Application 
Scene 
2.4G panel 
switch
2.4G remote 
controller
2.4G transparent 
transmission
Mobile phone 
one-to-many control
IO switching 
control
2.4Gtoys
Application of 
intelligent home control
 
JDY-40 Pin 
Definition 
 
Dimensional 
Drawing 
 
 
Default 
Configuration 
 
AT Instruction 
Set 
 
AT instruction 
instructions 
In particular, 
the JDY-40 module sends the AT instruction need to end the symbol 
\r\n 
 
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. 
China (Mainland)
TUOZHANTENG electronic components Co., LTD
0755-82527072
emily@tztstore.com
3013 Hongli Road, Shanghang Building 5F/511, Huaqiangbei , Futian , Shenzhen , Guangdong , China.
Hong Kong,China
TUOZHANTENG HK CO., LTD
1244995775@qq.com
Room 1103, Hang Seng Mongkok Building, 677 Nathan Road, Mongkok, Kowloon, Hong Kong
    

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