the documentation links to generic download page which contains technical brief for nebulas but nothing for earlier version (except for pinout and soldering)
My mistake on the link to the UM620N. I misread UM626N. The pages for both boards show they are based on the UFirebirdII SOC. Unicore lists an english manual for the UFirebirdII SOC. I did notice that Unicore has different links on the english site. The english site URL’s all start with “en”.
Here is the english FirebirdII protocol spec. Maybe those with the UM626N can see if this lines up with what you are seeing.
baud rate matched, bitmask for enabled protocols also. Sooo wanted to check if 10Hz would be an option, and switch the baud rate to 460800
$CFGPRT,1,0,460800,h81,h23
and … it’s gone. It is now spitting garbage. Initially thought that orange pi UART is the problem due to clock speeds. But on both PL2303 and CH340 - same (and CH340 should handle that baudrate)
If you need to output a message at a higher rate, such as 10 Hz, increase the baud
rate. Otherwise, incomplete satellite information may appear.
it writed in unicore protocol specifications
Yeah I already saw that, looks like I got beaten on that one. I do have about 5 boards I ordered but I never ordered any modules. I kinda lost interest when I found out that you can get the UM982 dev board from LCSC for $125USD. Which is what it would cost me to buy just the modules.
Curious where you are finding K823 boards in the same price range as the UM982. The ones I am seeing on Aliexpress are USD 350 to 750. The UM982 boards are about USD 125 to 150.
The specs say no L2 support. I would not consider any such product for precision ag aplications specifically when receivers supporting L2 (dual or triple frequency) are “cheap enough”.
Why are you specifically after UN626N when Unicore has proper models (at least advertised, seems surprisingly limited practical experience from “F9P killer products”.
I did not find any definition of tracked codes for the 626 (why so shy). In any case, unfortunately the high accuracy L5 signal is only available from a fraction of satellites. L1/L2/L5 would be a safe choice but the price is high, at least for competing products at the moment.
