seems like schematic is ready

F3:F303/CANbus4BTA/kicad/fp-lib-table

@@ -1,4 +1,5 @@
 (fp_lib_table
+  (version 7)
   (lib (name "my_footprints")(type "KiCad")(uri "${KIPRJMOD}/my_footprints.pretty")(options "")(descr ""))
-  (lib (name "kicad")(type "KiCad")(uri "/home/eddy/Docs/SAO/ELECTRONICS/STM32/F0-srcs/CANbus4BTA/kicad.pretty")(options "")(descr ""))
+  (lib (name "kicad")(type "KiCad")(uri "/home/eddy/Docs/SAO/ELECTRONICS/STM32/F0-srcs/CANbus4BTA/kicad.pretty")(options "")(descr "")(disabled))
 )

F3:F303/CANbus4BTA/kicad/optocouple.kicad_sch

@@ -439,7 +439,7 @@
 	)
 	(wire
 		(pts
-			(xy 129.413 54.229) (xy 124.46 54.229)
+			(xy 119.38 51.435) (xy 114.3 51.435)
 		)
 		(stroke
 			(width 0)
@@ -449,7 +449,7 @@
 	)
 	(wire
 		(pts
-			(xy 124.46 59.309) (xy 129.286 59.309)
+			(xy 114.3 56.515) (xy 119.38 56.515)
 		)
 		(stroke
 			(width 0)
@@ -457,9 +457,19 @@
 		)
 		(uuid "f4fc9d10-1e63-4e24-a02b-556e4b39b19c")
 	)
-	(hierarchical_label "EXT5V"
+	(text "EXTV=24V -> R=3k3\nEXTV=9V -> R=1k "
+		(exclude_from_sim no)
+		(at 108.585 38.1 0)
+		(effects
+			(font
+				(size 1.27 1.27)
+			)
+		)
+		(uuid "1ec1a03b-0c1c-4165-a4b2-accfb18e534c")
+	)
+	(hierarchical_label "EXTV"
 		(shape input)
-		(at 109.22 46.609 0)
+		(at 99.06 43.815 0)
 		(fields_autoplaced yes)
 		(effects
 			(font
@@ -471,7 +481,7 @@
 	)
 	(hierarchical_label "In"
 		(shape input)
-		(at 129.413 54.229 0)
+		(at 119.38 51.435 0)
 		(fields_autoplaced yes)
 		(effects
 			(font
@@ -483,7 +493,7 @@
 	)
 	(hierarchical_label "gnd"
 		(shape input)
-		(at 129.286 59.309 0)
+		(at 119.38 56.515 0)
 		(fields_autoplaced yes)
 		(effects
 			(font
@@ -495,7 +505,7 @@
 	)
 	(hierarchical_label "EXTi"
 		(shape input)
-		(at 109.22 59.309 180)
+		(at 99.06 56.515 180)
 		(fields_autoplaced yes)
 		(effects
 			(font
@@ -507,15 +517,15 @@
 	)
 	(symbol
 		(lib_id "Device:R")
-		(at 109.22 50.419 0)
+		(at 99.06 47.625 0)
 		(unit 1)
 		(exclude_from_sim no)
 		(in_bom yes)
 		(on_board yes)
 		(dnp no)
 		(uuid "09735fc2-1580-4524-a728-ca09449b348a")
-		(property "Reference" "R31"
+		(property "Reference" "R39"
-			(at 110.998 49.5843 0)
+			(at 100.838 46.7903 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -524,7 +534,7 @@
 			)
 		)
 		(property "Value" "3k3"
-			(at 109.093 51.943 90)
+			(at 98.933 49.149 90)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -533,7 +543,7 @@
 			)
 		)
 		(property "Footprint" "Resistor_SMD:R_2010_5025Metric_Pad1.40x2.65mm_HandSolder"
-			(at 107.442 50.419 90)
+			(at 97.282 47.625 90)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -542,7 +552,7 @@
 			)
 		)
 		(property "Datasheet" "~"
-			(at 109.22 50.419 0)
+			(at 99.06 47.625 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -551,7 +561,16 @@
 			)
 		)
 		(property "Description" ""
-			(at 109.22 50.419 0)
+			(at 99.06 47.625 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Manufacturer" ""
+			(at 99.06 47.625 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -568,35 +587,35 @@
 		(instances
 			(project "stm32"
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/311a5cb3-0370-4a86-a5e8-6335fee47f9a"
-					(reference "R31")
+					(reference "R39")
 					(unit 1)
 				)
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/2b18f3bb-219b-4cc5-8bc9-bc122d6e81e9"
-					(reference "R35")
+					(reference "R43")
 					(unit 1)
 				)
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/c51c7789-4b67-42c9-a921-b1066b3f95ba"
-					(reference "R37")
+					(reference "R45")
 					(unit 1)
 				)
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/737c47dd-2cc5-4c23-ab54-7bef18beb2a3"
-					(reference "R32")
+					(reference "R40")
 					(unit 1)
 				)
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/0ff6ac13-ac49-41f0-9506-376ccd8b8ba4"
-					(reference "R33")
+					(reference "R41")
 					(unit 1)
 				)
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/1cf77ae7-411e-49cc-bbff-6947c0aa32bd"
-					(reference "R34")
+					(reference "R42")
 					(unit 1)
 				)
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/d7c9ec36-f6b4-4bc2-8e9a-7a0792b9eff0"
-					(reference "R36")
+					(reference "R44")
 					(unit 1)
 				)
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/e5255d96-2d32-432c-bf31-9afa6ac7ec6a"
-					(reference "R38")
+					(reference "R46")
 					(unit 1)
 				)
 			)
@@ -604,7 +623,7 @@
 	)
 	(symbol
 		(lib_id "Isolator:PC817")
-		(at 116.84 56.769 0)
+		(at 106.68 53.975 0)
 		(unit 1)
 		(exclude_from_sim no)
 		(in_bom yes)
@@ -612,8 +631,8 @@
 		(dnp no)
 		(fields_autoplaced yes)
 		(uuid "400c154c-5d09-4b90-bd4d-4cdbee68e158")
-		(property "Reference" "U11"
+		(property "Reference" "U12"
-			(at 116.84 49.2592 0)
+			(at 106.68 46.4652 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -621,7 +640,7 @@
 			)
 		)
 		(property "Value" "PC817"
-			(at 116.84 51.7961 0)
+			(at 106.68 49.0021 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -629,7 +648,7 @@
 			)
 		)
 		(property "Footprint" "Package_DIP:DIP-4_W7.62mm"
-			(at 111.76 61.849 0)
+			(at 101.6 59.055 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -640,7 +659,7 @@
 			)
 		)
 		(property "Datasheet" "http://www.soselectronic.cz/a_info/resource/d/pc817.pdf"
-			(at 116.84 56.769 0)
+			(at 106.68 53.975 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -650,7 +669,16 @@
 			)
 		)
 		(property "Description" ""
-			(at 116.84 56.769 0)
+			(at 106.68 53.975 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Manufacturer" ""
+			(at 106.68 53.975 0)
 			(effects
 				(font
 					(size 1.27 1.27)
@@ -673,37 +701,37 @@
 		(instances
 			(project "stm32"
 				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/311a5cb3-0370-4a86-a5e8-6335fee47f9a"
-					(reference "U11")
-					(unit 1)
-				)
-				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/2b18f3bb-219b-4cc5-8bc9-bc122d6e81e9"
-					(reference "U15")
-					(unit 1)
-				)
-				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/c51c7789-4b67-42c9-a921-b1066b3f95ba"
-					(reference "U17")
-					(unit 1)
-				)
-				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/737c47dd-2cc5-4c23-ab54-7bef18beb2a3"
 					(reference "U12")
 					(unit 1)
 				)
-				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/0ff6ac13-ac49-41f0-9506-376ccd8b8ba4"
+				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/2b18f3bb-219b-4cc5-8bc9-bc122d6e81e9"
-					(reference "U13")
-					(unit 1)
-				)
-				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/1cf77ae7-411e-49cc-bbff-6947c0aa32bd"
-					(reference "U14")
-					(unit 1)
-				)
-				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/d7c9ec36-f6b4-4bc2-8e9a-7a0792b9eff0"
 					(reference "U16")
 					(unit 1)
 				)
-				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/e5255d96-2d32-432c-bf31-9afa6ac7ec6a"
+				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/c51c7789-4b67-42c9-a921-b1066b3f95ba"
 					(reference "U18")
 					(unit 1)
 				)
+				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/737c47dd-2cc5-4c23-ab54-7bef18beb2a3"
+					(reference "U13")
+					(unit 1)
+				)
+				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/0ff6ac13-ac49-41f0-9506-376ccd8b8ba4"
+					(reference "U14")
+					(unit 1)
+				)
+				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/1cf77ae7-411e-49cc-bbff-6947c0aa32bd"
+					(reference "U15")
+					(unit 1)
+				)
+				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/d7c9ec36-f6b4-4bc2-8e9a-7a0792b9eff0"
+					(reference "U17")
+					(unit 1)
+				)
+				(path "/f40cbe7e-cd25-45e5-a6cb-d92457495048/e5255d96-2d32-432c-bf31-9afa6ac7ec6a"
+					(reference "U19")
+					(unit 1)
+				)
 			)
 		)
 	)

F3:F303/CANbus4BTA/kicad/stm32.kicad_pro

@@ -591,7 +591,7 @@
       "sort_asc": true,
       "sort_field": "Reference"
     },
-    "connection_grid_size": 50.0,
+    "connection_grid_size": 25.0,
     "drawing": {
       "dashed_lines_dash_length_ratio": 12.0,
       "dashed_lines_gap_length_ratio": 3.0,

F3:F303/CANbus4BTA/kicad/sym-lib-table

@@ -1,8 +1,8 @@
 (sym_lib_table
   (version 7)
   (lib (name "stm32-rescue")(type "KiCad")(uri "${KIPRJMOD}/stm32-rescue.kicad_sym")(options "")(descr ""))
-  (lib (name "stm32")(type "KiCad")(uri "/home/eddy/kicad/Kicad-Libraries/library/stm32.kicad_sym")(options "")(descr "")(disabled))
+  (lib (name "stm32")(type "KiCad")(uri "/home/eddy/kicad/Kicad-Libraries/library/stm32.kicad_sym")(options "")(descr "")(disabled)(hidden))
-  (lib (name "vreg")(type "KiCad")(uri "/home/eddy/kicad/Kicad-Libraries/library/vreg.kicad_sym")(options "")(descr "")(disabled))
+  (lib (name "vreg")(type "KiCad")(uri "/home/eddy/kicad/Kicad-Libraries/library/vreg.kicad_sym")(options "")(descr "")(disabled)(hidden))
   (lib (name "elements")(type "KiCad")(uri "${KIPRJMOD}/elements.kicad_sym")(options "")(descr ""))
   (lib (name "stm32-cache")(type "KiCad")(uri "${KIPRJMOD}/stm32-cache.kicad_sym")(options "")(descr ""))
   (lib (name "iso3086")(type "KiCad")(uri "${KIPRJMOD}/iso3086.kicad_sym")(options "")(descr ""))