docs: update changelog and header for version v1.5.12-beta3

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## [1.5.12-beta3] - 2025-08-29
+### Added
+- add logging for decoded JSON data in NFC processing
+
+### Changed
+- update platformio.ini for beta version v1.5.12-beta3
+
+
 ## [1.5.12-beta2] - 2025-08-29
 ### Changed
 - update platformio.ini for beta version v1.5.12-beta2

platformio.ini

@@ -9,7 +9,7 @@
 ; https://docs.platformio.org/page/projectconf.html
 
 [common]
-version = "1.5.12-beta2"
+version = "1.5.12-beta3"
 to_old_version = "1.5.0"
 
 ##

src/nfc.cpp

@@ -216,6 +216,9 @@ bool decodeNdefAndReturnJson(const byte* encodedMessage, String uidString) {
     nfcJsonData += (char)encodedMessage[3 + typeLength + i];
   }
 
+  Serial.println("Decoded JSON Data:");
+  Serial.println(nfcJsonData);
+
   // JSON-Dokument verarbeiten
   JsonDocument doc;
   DeserializationError error = deserializeJson(doc, nfcJsonData);