Rev. 0.3: Add 10µF capacitor C304 to CAN transceiver and QR code placeholder

- Added 10µF capacitor C304 for improved CAN communication stability
- Added QR code placeholder for serial number on PCB
- Enhanced signal integrity with additional filtering at CAN transceiver
- Improved traceability with unique identification capability
- Updated changelogs and documentation for Rev. 0.3

CHANGELOG.de.md

@@ -7,6 +7,16 @@ Alle wichtigen Änderungen an diesem Projekt werden in dieser Datei dokumentiert
 Das Format basiert auf [Keep a Changelog](https://keepachangelog.com/de/1.0.0/),
 und dieses Projekt folgt [Semantic Versioning](https://semver.org/lang/de/).
 
+## [Rev. 0.3] - 2025-12-09
+
+### Hinzugefügt
+- **CAN-Transceiver:** 10µF Kondensator C304 für verbesserte Stabilität der CAN-Kommunikation
+- **PCB Layout:** QR Code Platzhalter für Seriennummer auf der Platine
+
+### Technische Details
+- **Verbesserte Signal-Integrität:** Zusätzliche Filterung am CAN-Transceiver für stabilere Datenübertragung
+- **Rückverfolgbarkeit:** QR Code ermöglicht eindeutige Identifikation und Dokumentation
+
 ## [Rev. 0.2] - 2025-12-08
 
 ### Verbesserungen

CHANGELOG.md

@@ -7,6 +7,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/).
 
+## [Rev. 0.3] - 2025-12-09
+
+### Added
+- **CAN Transceiver:** 10µF capacitor C304 for improved CAN communication stability
+- **PCB Layout:** QR code placeholder for serial number on the PCB
+
+### Technical Details
+- **Enhanced Signal Integrity:** Additional filtering at CAN transceiver for more stable data transmission
+- **Traceability:** QR code enables unique identification and documentation
+
 ## [Rev. 0.2] - 2025-12-08
 
 ### Improvements

EWS.kicad_pro

@@ -804,6 +804,6 @@
     ]
   ],
   "text_variables": {
-    "PROJEKT_REV": "0.2"
+    "PROJEKT_REV": "0.3"
   }
 }

production/bom.csv

@@ -2,12 +2,12 @@
 "C201, C403",CP_Elec_6.3x7.7,2,100u,C3151829
 "C202, C204, C205, C206",1206,4,10u,C13585
 "C203, C207, C211",0402,3,1u,C52923
-"C208, C210, C301, C302, C304, C401, C404",0402,7,100n,C307331
+"C208, C210, C301, C302, C305, C401, C404",0402,7,100n,C307331
 C209,0402,1,4u7,C23733
 C212,0603,1,220p,C1603
 C213,0402,1,1n,C1523
-"C214, C215, C216, C217, C305, C306, C405, C406",1206,8,22u,C12891
+"C214, C215, C216, C217, C306, C307, C405, C406",1206,8,22u,C12891
-"C303, C402",0603,2,10u,C96446
+"C303, C304, C402",0603,3,10u,C96446
 "D201, D202, D203",0805,3,YELLOW,C2296
 D301,0805,1,GREEN,C2297
 D302,SOT-23,1,PESD1CAN,C907838

production/designators.csv

@@ -21,6 +21,7 @@ C303:1
 C304:1
 C305:1
 C306:1
+C307:1
 C401:1
 C402:1
 C403:1

production/positions.csv

@@ -19,9 +19,10 @@ C217,177.25,-116.9,270.0,top
 C301,173.25,-83.52,270.0,top
 C302,173.1,-86.45,90.0,top
 C303,174.3,-86.675,270.0,top
-C304,157.3875,-78.5475,90.0,top
+C304,157.65,-76.1,90.0,top
-C305,142.875,-77.6,180.0,top
+C305,157.3875,-78.5475,90.0,top
-C306,142.875,-75.2,180.0,top
+C306,142.875,-77.6,180.0,top
+C307,142.875,-75.2,180.0,top
 C401,180.78,-78.7,0.0,top
 C402,178.125,-77.2,180.0,top
 C403,175.4,-104.9,270.0,top