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4. With DIY radio interface 
(The  4P  XH2.54  interface  is  provided  in  the  lower  right  corner  of  the  board, 
which is convenient for you to use for strange radio stations.) 
 

Litelink uses common interface cable   

USB uses a TYPE B USB cable. 
Audio can choose 4 ring stereo male to male connector to connect the link to a 
laptop,  smart  phone,  tablet  device  with  only  one  audio  interface,  and  also 
provides a common audio interface input , just use 3 ring ordinary stereo The 
male to male connector can be connected to the hardware. 
 
The  output  of  the  radio  adopts  the  PS/2  interface.  The  PS/2  interface  is  the 
most commonly used data channel for the UV radio station and the short-wave 
radio.   
 
In order to improve the use value of litelink, link also provides a CW interface 
for daily CW use, as well as a set of TTL write frequency interfaces, a set of 
DIY radio interfaces. 
 

What can I do with lite link? 

1. Connect to the U/V radio to run software such as ECHOLINK, APRS. 
2. Connect to HF radio to run software such as RTTY/SSTV/FT8/PSK 
3. Use TTL interface to write to GP88S and other radios 
4. CIV connecting ICOM stations using TTL interface 
5. Connected to an HF radio for transmitting CW signals 
6.  For  radio  and  mobile  phones,  tablets  and  other  devices  connected  to  run 
APRS / RTTY / SSTV / FT8/ PSK and other software, and use the OTG cable 
to connect to the USB serial port (or use VOX voice control) 
 

Where does the computer driver needed for 

Litelink? 

Litelink uses CH340G produced by WCH as the serial port chip. The driver for 
this  chip  is  recommended  to  go  directly  to  the  WCH.CN  official  website  for 
download. If you use other channels to download the driver, the computer may 
not be able to shake hands with litelink. 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for Litelink

Page 1: ...Litelink Radio audio digi interface UUSER MANUAL Venus Information Technology Co Ltd...

Page 2: ...ve connectors since January 2018 This product complies with RoHs standards If you are located in an EU member state or other countries please do not hesitate to contact me to produce customized produc...

Page 3: ...introduction Lite link is a mini version of the radio audio interface Unlike most interface on the market the lite link has a PCB size of only 5 5cm The following is the difference between litelink an...

Page 4: ...interface for daily CW use as well as a set of TTL write frequency interfaces a set of DIY radio interfaces What can I do with lite link 1 Connect to the U V radio to run software such as ECHOLINK APR...

Page 5: ...ter Litelink PCB 2 1 3 4 5 6 7 8 9 Wiring instructions 1 Type B USB is used to connect to a computer or connect to other mobile terminals via OTG adapter cable 2 XH2 54TTL write frequency CIV interfac...

Page 6: ...3 5mm jack for connecting the radio s straight key for computer transmission 7 4 ring stereo audio jack for connecting computers and mobile phones with this interface or other terminals 8 XH2 54 custo...

Page 7: ...Lite link schematics...

Page 8: ...ADS SparkFun Connectors 1 JP3 M04LONGPADS 1X04_LONGPADS SparkFun Connectors 1 OK1 CW PC817 DIL04 optocoupler 1 OK4 PTT PC817 DIL04 optocoupler 1 R1 330R R US_M0805 M0805 resistor 1 R2 560R R US_M0805...

Page 9: ...d before packaging The test equipment is FT 8900R power 5W using GP antenna to test the USB and audio parts of litelink using ECHOLINK software In the development process the ICOM7100 long line antenn...

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