Differences

This shows you the differences between two versions of the page.

--- lcd_sysex [2024/04/24 18:17] – ounsatn
+++ lcd_sysex [2024/04/24 19:04] (current) – ounsatn
@@ Line 29: / Line 29: @@
 53 : Message Length
 : Oled display number ( going from 0 to 7 on AKF )
-01 : [starty] [endy]  ( first row going to 0 to 1, second row 1 to 2 etc.. )
+01 : [starty] [endy]  ( first row going to 0 to 1, second row 1 to 2 etc.. )  ( there are 4 rows on AKF )
 38 : [startx] [endx]
 3F 7F 73 19 4F 7F 7F : message to display.
-.... : other messages
+.... : message continue ( 00 = black/no display )
 F : message ending footer
 </code>
@@ Line 43: / Line 43: @@
 Each column has 8 pixels as on the oled screen.
-As an example to lit first column ( pixel goes from 1 to 8 , from upper to lower )
+__Example to lit first column__ ( pixel goes from 1 to 8 , from upper to lower )
 {{http://dnttalo.cluster029.hosting.ovh.net/Pictures/LCDSysex3.jpg}}
@@ Line 55: / Line 57: @@
-Another example to draw the A letter.
+__Example to draw the A letter.__
 {{http://dnttalo.cluster029.hosting.ovh.net/Pictures/LCDSysex4.jpg}}
@@ Line 61: / Line 63: @@
 The first column is Empty ( black) so first Byte is 0 (00)
-The second column is shared with pixel belonging to 2nd Byte, and 3rd Byte.
+The second column is shared with pixels belonging to 2nd Byte, and 3rd Byte.
 To lit 3rd pixel to 7th pixel you have to lit 1+2+4+8+10 => 1F ,
 To lit 1st and 2nd pixel you have to do it in the 3rd Byte. So it will be 40+20 => 60.
@@ Line 70: / Line 72: @@
 {{http://dnttalo.cluster029.hosting.ovh.net/Pictures/LCDSysex5.jpg}}
+<code>
+amidi -phw:0,0,0 -S 'F0 47 7F 40 0B 00 53 02 00 01 00 38 00 1F 62 00 00 00 00 00 00 00 00 00 00 0
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F7'
+</code>
 Then to continue the A, we need to lit the upper of the A (10+20) , and the lower part of right side of the A ( 1+2+4 )
 so it gives value 37.
+Message is then ( 00 1F 62 37 )
 {{http://dnttalo.cluster029.hosting.ovh.net/Pictures/LCDSysex6.jpg}}
+<code>
+amidi -phw:0,0,0 -S 'F0 47 7F 40 0B 00 53 02 00 01 00 38 00 1F 62 37 00 00 00 00 00 00 00 00 00 0
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F7'
+</code>
+And to finish we need to lit the upper part of the right side of the A.
+{{http://dnttalo.cluster029.hosting.ovh.net/Pictures/LCDSysex7.jpg}}
+This is done by adding the 5th Byte to the string , it is 8+10+20+40 => 78
+Message is ( 00 1F 62 37 78 )
+We add 00 to the end to fill other column with black
+Final message is ( 00 1F 62 37 78 00 00 00)
+<code>
+amidi -phw:0,0,0 -S 'F0 47 7F 40 0B 00 53 02 00 01 00 38 00 1F 62 37 78 00 00 00 00 00 00 00 00 0
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F7'
+</code>
+In this example the A is a bit narrowed, but you can use the one from below which is wider :
+Below are some letters i tried to reproduce, i need to finish it ;)
+{{http://dnttalo.cluster029.hosting.ovh.net/Pictures/LCDSysex8.jpg}}
+In my message, i dont really compute the  Message Length and endx values.
+I have taken values which are enough long to allow confortable filling, but if you do a longer message you have to consider changing it.