Seqence of Events on RPI with Pi-Star
开云体育There are pre-compiled images for the raspberry Pi here. ?? Read the comprehensive instructions and use Etcher to burn the downloaded image file. Insert into Pi, use web URL to login to Pi via browser. Pi-Star only has a web interface and Pi does not have a normal GUI or desktop and only CLI so typically you will never need a monitor or keyboard attached to the Pi as everything is done via a webpage. ? When setting up for the first time you will need the Nextion screen attached and depending on the screen size and what driver to use. ? The Nextion screen will only show blank images (or demo reels) until you upload a screen image via a FTDI USB to serial converter or if you Nextion screen has a MicroSD slot then onto a card and then load the HMI (pre compiled with Nextion software). You have to download the Nextion HMI for the right screen and then compile it before loading to the screen. ? Configure the MMDVM to your type (mine is dual channel), input your details, callsign, DMR ID etc. ? Everything is then just selecting the right configuration. Eg: DMR mode, Fusion Mode or of you really get fancy YSF to DMR etc. ? Also depending on your server you may need to register with. Brandmeister, D-Star (with your local D-Star repeater keeper or direct with Icom (but don’t start two registrations if one doesn’t reply) they get upset with multiple applications and won’t start fresh if one is underway. ? ?Test the BER and tune the frequency offset of your TXCO is off by a little bit. This will ensure 0.0% BER. Observe a lot of MMDVM on RPi’s also over load if you're ?keying the radio right next to it so make sure you reduce your power (this is certainly true on the dual band version I have found so worth noting). ? Register with the Pi-Star Telegram group for nearly 24/7 support. Do the same with Brandmeister, however, don’t discuss Pi-Star on Brandmeister or visa versa as they get the hump if you do. ? ?Andy Taylor is great for support but also a busy guy so please ask here first and in the forum before you reach out to him. He is amazingly helpful but busy, I am always around for help. Had a hotspot for …… not sure but around 6 or 7 years I think. V1 ? ?If you need links to the HMI files I shall send you some here. Download from GitHub. ? ?Hopefully that’s a crash course from A - Z and more than enough I think to at least get you up and running. Good luck de Spence G5STO Sent while portable! please excuse typos. On 7 Oct 2024, at 23:01, Norm Freidin VE3CZI via groups.io <ve3czica@...> wrote:
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开云体育Sorry….. ?no you don’t need to change data on the Nextion screen! All the images are pre-loaded and will automatically change on the detected transmission or mode or modes you have selected. It’s a one shot deal really and once programmed you never need to touch the Nextion screen again…… |
Spence G5STO
The link to Nextion editor and background HMI files. IMPORTANT….. HMI files require compiling first. Duplex or simplex frequencies also need inputting too before you compile (they don’t actually do anything other than tell you the frequency for reference).?
?This is the screen I’m using?
See the duplex frequencies are pre-set!
?You will also need to decide if your MMDVM is private or public but private requires you to setup the DMR ID’s for example for access. Public is a security risk and wide open but it’s up to you and if you are portable or remote location then you may wish to use public.
? ?So just to recap. Radio modem type mine is MMDVM_HS_Dual_Hat Pi GPIO
Modem baud rate : 115200
MMDVM display type : Nextion (enhanced w/driver, attached to modem)?
Port: Modem
Layout type: G4KLX?
Host name, callsign, DMR/CS7 ID, NXDN ID, radio frequency Tx, radio frequency RX, system time zone, dashboard language ….. are all personal to you and only you will have that information.
Same with longitude and latitude, town etc.
If you want to use with DMR then just flick the DMR switch and leave everything else unticked.
?All other settings like BrandmeisterMaster and Brandmeister security can be touched upon later.
as with DMR+ etc.
?De Spence G5STO
PA: battery was going flat so had to send the email in two parts….?
Sent while portable! please excuse typos.
Phil Culmer 2E0HGU