182 lines
4.4 KiB
Plaintext
182 lines
4.4 KiB
Plaintext
Nextion Display Layouts by ON7LDS (for MMDVMHost)
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=================================================
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####################################
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# #
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# screenLayout 3 & 4 files (-L3) #
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# #
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# DIY layouts #
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# #
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####################################
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The screenlayout has to be selected with the parameter ScreenLayout in the
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MMDVM.ini file under the Nextion section. This way, the extra functions
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are activated.
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0 = auto (future use, for now it's G4KLX layout)
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1 = G4KLX layout
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2 = ON7LDS layout (see README-L2)
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3 = ON7LDS DIY layout (this README file)
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4 = ON7LDS DIY layout Hig Speed (this README file)
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screenLayout 3 and 4 are the same, but selecting 3, MMDVMHost wil communicate
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at 9600bps with the display and selecting 4 will set the baudrate to 115200.
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If you select 4 (115200bps) *you* have to program your Nextion to default to
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that baudrate.
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How to set the default Nextion Display baudrate ?
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You could use the Nextion editor, connect to your display with the debug
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tool (do not forget to select your display and not the simulator) and
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give the command 'bauds=115200'.
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Another option is to set the command above in the Preinitialization Event
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of the first page. Nextion recommends to do the latter in any case,
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because 'on rare occasions bauds has become lost'
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DIY layouts
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-----------
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When selecting this layout, all processing can and should be done in the
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Nextion display itsself.
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Whenever MMDVMHost sends new data to the screen, it also sends information
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about wat was sent:
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* global variable MMDVM.cmd will hold the number of the changed field
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(not the object id! 0 for t0, 1 for t1, etc.)
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* global variable MMDVM.status will hold the status of the change
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(the type of information sent - see further in this document)
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Then MMDVMHost activates the Touch Press Event of object 'S0' of the
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active page.
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In this event procedure, all processing can be done.
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Check the Touch Press Event of object 'S0' of the DMR page of the example
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HMI file. As a straightforward example, the code there will show you how
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to do some tasks when receiving data from MMDVMHost or NextionDriver:
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- change colors and fonts of the TA on the DMR page when it arrives.
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(TA length calculation is done in the display itsself !)
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- display the GPS data (if received) in a new field (called 'GPS'),
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by copying the GPS data form the field where MMDVMHost has
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written to (t11 for GPS data from slot 2 in DMS format)
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- remove the slot number from t2.txt (since it's always 2)
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NOTE: it might be good to not remove fields from the display when you do not
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need them, but make them small (i.e. 10 x 10 pixels) and put them aside:
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Give them the same font color and background color as where you put them
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OR
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Put them behind some picture: put them on top of the picture, then select the
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picture and click the 'Bring Top' button to put it on top of all those fields
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This way, you can use the data from the fields to process them
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as is done with the GPS data in the example.
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Status codes that will be sent:
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-------------------------------
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The status code gives more information about what was sent in the
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changed field.
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1 : page MMDVM
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2 : page D-Star
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3 : page DMR
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4 : page YSF
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5 : page P25
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11 : IDLE
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12 : CW
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13 : ERROR text
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14 : ERROR
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15 : LOCKOUT
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16 : IPaddress
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17 : ID/Call (t0 and t4,t5 are sent!)
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19 : END
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21 : D-Star listening
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22 : type/my1/my2
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23 : your
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24 : reflector
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25 : RSSI
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26 : ber
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31 : DMR listening
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32 : ID
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33 : TA
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34 : Call end
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35 : GPS
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36 : TG
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37 : RSSI
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38 : ber
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41 : YSF listening
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42 : src
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43 : dest
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44 : origin
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45 : RSSI
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46 : ber
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51 : P25 listening
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52 : source
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53 : dest
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54 : RSSI
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55 : ber
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Fields (and their numbers) on the pages, used by MMDVMHost
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----------------------------------------------------------
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MMDVM
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t0 : owner call & ID / errortext LOCKOUT
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t1 : status / ERROR
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t2 : date & time
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screenLayout >1 :
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t3 : ip address
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t4 : owner call
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t5 : owner ID
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D-Star
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t0 : type my1 my2
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t1 : your
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t2 : reflector
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t3 : rssi
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t4 : ber
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DMR
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t0 : src1 id / call / TA
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t1 : dst
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t2 : src2 id / call / TA
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t3 : dst
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t4 : rssi1
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t5 : rssi2
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t6 : ber1
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t7 : ber2
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screenLayout >1 :
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t8 : GPS1 dec
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t9 : GPS1 DMS
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t10: GPS2 dec
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t11: GPS2 DMS
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t12: GPS1 err
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t13: GPS2 err
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YSF
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t0 : type,source
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t1 : dst
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t2 : src
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t3 : rssi
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t4 : ber
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P25
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t0 : type,source
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t1 : dst
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t2 : rssi
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t3 : ber
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