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Release DVPI Version 1.03 (scirpt update)

 Release DVPI Version 1.03

There have been some changes to the DMR node recently.

This version changes only those related to the recently changed DMR node. If you normally use Version 1.0 or Version 0.95, no upgrade is required.

DVPi uses the USRP Client protocol. When you install and use DVSwitch, you must read and comply with the license that appears. The user is responsible for the license for the use of DVPi.

1.Download Link

2.What was added in Version 1.03 (from Version 1.0)

 -To reduce user confusion, the MMDVM password change function has been removed.

  If the DMR's BM password has been changed, it can be changed on the DVSwitch Settings Change screen.

- It is not a function you use. Changed the TX/RX frequency of MMDVM to the same frequency. This is because the new DMR rule may not work if the frequency is different.

3.How to Install

  There is a detailed explanation about more detailed installation method and H/W configuration on my blog. 

  The following explains how to download and configure to use DVPi. Please refer to another post for more details.

3.1 Download

  Download the and files from the download link.

   Unzip the downloaded files (,

3.2 Write the dvpi_103.img file to the SD card.

  Formatting the SD card is not mandatory. When I apply the image file to the SD card, sometimes an error occurs, so I format it first.

Apply the dvpi_103.img file to the SD card with Win32Disk Imager.

After completion, remove the SD card and insert it into the Raspberry Pi of the DVPi.

Connect power to the DVPi. (power on DVPi)

Sometimes, depending on the LCD, the screen is turned upside down, You can reverse the top and bottom of the screen in DVPi Manager.

At the time of the first boot, because there is no setting, it is not possible to log in.

3.3 Find DVPi IP Address
The Raspberry Pi image used in DVPi is automatically assigned an IP (using DHCP Server).
You can use the DVPi Manager to find out the IP of the DVPi.

Run DVPi Manager -> Click the 'Find DVPi' Button

Click the 'Find' Button
(If multiple LAN cards are installed in your computer, you must select the IP address of your computer before clicking the 'Find' button)

I have 3 DVPi and they are all found. Once you have found the IP of the DVPi you can use ssh.
DVPi can be accessed with ssh id: pi, password: dvpi

3.4 Installing DVSwitch and Setting up DVSwitch
(DVSwitch installation is only necessary to embed DVSwitch into DVPi)

Execute DVPi Manager -> Input DVPi IP Address -> Click the 'Connect' Button

Click the 'Easy setup of installed DV Switch'

To embed DVSwitch into DVPi, you only need to execute 4 commands. The four commands are explained in the center of the screen.

Rutn the SSH Client as putty
Login ID : pi, Passwor d: dvpi

Execute the commands described in DVPi Manager one by one.
It is convenient to use copy and paste.

In the case of putty, you can copy and paste multiple lines at once.

Execute 'sudo apt-get install -y dvswitch'

If all 4 commands were executed, your DVPi would have DVSwitch installed.
Setting up DVSwitch is easy with just a few entries.

Enter your callsign and DMR ID,
Unique ID is your Hotspot number that is unique. Any number you don't use is fine.

Choose Brand Meister Host, It is recommended to choose a server in your country.
(The US1 server that was set as the default until DVPi Version 1.0 is no longer operated)

If you have changed your password in Brand Meister, you must change the password field to your password.

The BM password can be changed here.

Enter the changed password.

Enter the Location field, the rest is not required, but it is strongly recommended to enter latitude and longitude.
Click the 'Apply All Setting' button.

The screen below is displayed and the operation takes about 1 minute.

When all settings are completed, the following message is displayed.

After rebooting DVPi, you should be connected to the DVSwitch server as shown below.

You can also check your Hotspot list if you log in to Brand Meister. I set the unique number 37 and it was displayed as follows.

3.5 flip the screen upside down

(This is only necessary if the screen is upside down like me. If your screen appears normally, this step is not necessary.)

Click the 'DVPi Basic Setup'

Click the '3.5 LCD 180 (upside down)' Button click

After rebooting, it will display normally as shown below.

3.6 Using DVPi
(For detailed usage and hardware configuration, please refer to other posts)

I will configure the DVPi to Dual Mode.  Since it's in Single Mode now, only VFOA works.
Since VFOB copies the settings of VFOA as it is, it is necessary to test whether VFOA works well.

Change TG

Reception is good. You have to test the transmission. If you are using D-Star, I recommend testing up to D-Star.

3.7 Dual Mode Settings

Connect to DVPi via SSH Client

Execute the command.
  (./ new unique number, The unique number is the new Hotspot number.
  ex ./ 38)

You can ignore the following error messages during script execution. (This is because it is a command to delete if it is already installed)

When all execution is completed, it asks if you want to reboot as follows.
No reboot required. This is because DVPi Manager will cause the DVPi to reboot.

Run DVPI manager

Click the 'DVPi Basic Setup'

After selecting Dual VFO as shown below, click the 'Apply All Setting' button.
(You may select 'Use Voice' if you wish to use the voice guidance function of DVPi)

When all settings are completed, DVPi automatically reboots.

After rebooting, DVPi operates in Dual Mode.

How to use DVPi's Dual Mode is described in detail in another post.

I tried changing the TG of VFO B.

3.8 DVPi's Hardware Settings
DVPi does not require any hardware other than the Raspberry Pi, sound card and LCD.
But for convenience, you can add things like buttons that you need.
How to add hardware to the DVPi is detailed in another post.

Run DVPi Manager

Click the 'Settings to use rotary encoder, PTT, and VOX functions' Button

In my case, I chose all of the below because I had a rotary encoder and buttons.
(If the direction of the rotary encoder is opposite, the numbers in the red square box below are interchanged)

When the activation selection for hardware is finished, click the 'Apply All Setting' button.

If the DVPi is equipped with a rotary encoder, it is possible to check who is in the TG as shown below.

4. conclusion

DVPi has quite a few features. In this post, I only set the settings for some of the features that are absolutely necessary for me.

You can find various features in different posts.


  1. This comment has been removed by a blog administrator.

  2. Long time no see!
    I will post this new version information to Korean DV cafes!

    1. Long time no see too.
      Thank you for your support.
      I'm trying to use the unused MMDVM Module (Jumbospot).

  3. Looking forward to new challenges with MMDVM.

    1. Thank you. I think i will be able to introduce some interesting features within a few days.

  4. Hi Lan, I have a problem with dvpi, as soon as I install double vfo dvswitch, turning the vfo encoder I no longer see the callsign but only the id number, what can be the cause?

    thank you

    1. If everything is normal and only the call sign is not visible (display only id number), click the 'Update UserDB' button on the menu screen.

    2. thanks Lan for the answer, I tried several times to update the database but no luck, I'll explain what I did, I reinstalled dvpi 1.03, I configured the external server dvswitch on vfo A everything works, then I installed dvswitch on board on vfo B and the problem arose

  5. Buenos días
    Estoy encantado con funcionamiento es excelente,la pregunta es si se puede configurar APRS. Muchas gracias y saludos cordiales

  6. hi, everything works fine, sorry just not being able to have YSF mode, with a screen button like D-star, Lan doesn't reply to messages and I can't contact him in any way.

  7. True, YSF on the desktop instead of DSTAR would be a good thing.
    It is possible to "rigidly" run YSF and M17, but this does not provide full functionality in these mods.

  8. Hello everybody. First of all I want to congratulate KD8CEC for the excellent work for DVPI and for the blog and then I would like to ask a few things: should I take a voltage from the GPIO when receiving a signal from a tg where DVPI is connected, precisely which PIN (+ and -) and what configuration to do and with DVPI MANAGER; moreover, when I receive a QSO the audio, this is not so clear, too "robotic" and sometimes it is difficult to understand, where am I wrong? Thank you in advance.

  9. The signals at RX and TX are described in the diagram :

    In the DVPi manager, in the section "Settings to use rotary encoder, PTT, VOX functions" , check the item: "Use RX signal OUT" GPIO = 26 / or "Use TX signal OUT" GPIO = 22.

    As for the quality of the audio, the speaker, amplifier (RX) and USB card (RX & TX) has a significant impact .
    I personally use the CM-108.

    1. Perfect .... I was wrong with one of the two PINs. Now I was able to find the 3.3V voltage when I get a signal. I also just bought a new USB sound card, unfortunately the CM108 can only be found on Aliexpress and not on Amazon which guarantees me a shipment within 24 hours.

      Thank you from the heart.

    2. The project is dead, no development, no updates, a real shame

  10. Access to the Project is free and its use is voluntary. Read what you wrote , and think if that is not a shame ?

    1. the project is not free, it is free to use, there are no sources to develop other functions

  11. ..."Access to the Project is free"...

    Read with understanding or use another translator

    What else did you want to implement?
    YSF? - you can
    M17? - you can

    VFO-A DMR - access to the HBLink DMR server

    VFO-A Dstar - access to the Dstar reflector's

    VFO-B DMR - access to the YSF reflector

    VFO-B Dstar - access to the M17 reflector

  12. VFO-B DMR - access to the YSF reflector


  13. In my case, it was not difficult. I used a well-known and proven method.

    and other available helpful information:,,,20,1,0,0

    On my own HBLink server I created a master "YSF".
    Then I created a separate DVSwitch - "YSF Bridge" for this master / with cross-connection of RX / TX ports between DMR and YSF modes .
    This DVSwitch is the bridge between DMR -> YSF - on any selected Reflector.
    And from the YSF -> DMR to any selected TG (TG Export).

    If necessary, you can create several such "bridges" and connect to different YSF Reflector's operated on separate TG's from the DMR side.
    The advantage of this solution is the possibility of using any equipment - DMR (RF) radio, DVPi, or network radio devices with the DVSwitch Mobile App.

    Important !
    DVSwitch configured in this way is only a bridge between DMR <--> YSF modes and we do not connect to it directly via USRP ports!
    We set the access on the HBLink server (

    For testing purposes, it's best to create your own YSF reflector

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