Added packet type 2 for Healthypi

Author: suvarna84

.idea/libraries/Flutter_Plugins.xml

@@ -6,6 +6,52 @@ import 'dart:typed_data';
 import '../../protocol/decoded_packet.dart';
 import 'shared_codecs.dart';
 
+/// HealthyPi 5 (USB) — pktType 2 — Combined ECG, BioZ & PPG single-sample packet.
+///
+/// Payload layout (22 bytes):
+///   [0-3]    ecg_sample       int32  LE — sign-extended 24-bit ADC value
+///   [4-7]    bioz_sample      int32  LE — bio-impedance / respiration waveform
+///   [8]      bioZSkipSample   uint8  — 0 = valid BioZ; 1 = skip (do not plot/process)
+///   [9-12]   raw_red          int32  LE — PPG red-channel raw photodiode counts
+///   [13-16]  raw_ir           int32  LE — PPG IR-channel raw photodiode counts
+///   [17-18]  temp             int16  LE — °C × 100 (only low 16 bits of int32 used;
+///                                         e.g. 3650 → 36.50 °C)
+///   [19]     spo2             uint8  — SpO₂ in %
+///   [20]     hr               uint8  — heart rate in bpm
+///   [21]     rr               uint8  — respiration rate in breaths/min
+///
+/// Note: bioz_sample is always emitted in channelSamples. Consumers must check
+/// the 'bioZSkip' event flag (1 = invalid) before plotting or processing the
+/// 'bioz' channel for this sample.
+DecodedPacket decodeHealthypiPkt2(Uint8List p) {
+  final ecgSample = Codec.readInt32LE(p, 0).toDouble();
+  final biozSample = Codec.readInt32LE(p, 4).toDouble();
+  final bioZSkip = p[8] != 0; // true → firmware says skip this BioZ sample
+  final rawRed = Codec.readInt32LE(p, 9).toDouble();
+  final rawIr = Codec.readInt32LE(p, 13).toDouble();
+  final temp = Codec.readInt16LE(p, 17).toDouble() / 100.0;
+  final spo2 = p[19];
+  final hr = p[20];
+  final rr = p[21];
+
+  return DecodedPacket(
+    pktType: 2,
+    channelSamples: {
+      'ecg': [ecgSample],
+      'bioz': [biozSample], // check events['bioZSkip'] before using
+      'ppgRed': [rawRed],
+      'ppgIr': [rawIr],
+    },
+    events: {
+      'heartRate': hr,
+      'respRate': rr,
+      'spo2': spo2,
+      'temperature': temp,
+      'bioZSkip': bioZSkip ? 1 : 0,
+    },
+  );
+}
+
 // ── HealthyPi 5 firmware v1.0.0+ (USB) — separate ECG/BioZ and PPG packets ──
 //
 // HealthyPi 5's USB stream batches samples into two framed packet types (see

lib/boards/decoders/healthypi_decoders.dart

@@ -121,6 +121,12 @@ final BoardDescriptor healthypiDescriptor = BoardDescriptor(
     _ppgRedChannel,
   ],
   packets: [
+    PacketSpec(
+      pktType: 2,
+      label: 'ECG/BioZ/PPG-Red/PPG-IR/Temp/SpO2/HR/RR',
+      expectedPayloadLength: 22,
+      decode: decodeHealthypiPkt2,
+    ),
     // Firmware v1.0.0+ USB batch packets.
     PacketSpec(
       pktType: 3,

lib/boards/descriptors/healthypi.dart

@@ -1,78 +1,34 @@
 PODS:
-  - desktop_window (0.4.3):
-    - FlutterMacOS
-  - file_selector_macos (0.0.1):
-    - FlutterMacOS
   - flutter_libserialport (0.0.1):
     - FlutterMacOS
     - libserialport
   - FlutterMacOS (1.0.0)
-  - geolocator_apple (1.2.0):
-    - Flutter
-    - FlutterMacOS
   - libserialport (0.1.1)
-  - package_info_plus (0.0.1):
-    - FlutterMacOS
-  - screen_retriever_macos (0.0.1):
-    - FlutterMacOS
-  - universal_ble (0.0.1):
-    - Flutter
-    - FlutterMacOS
-  - url_launcher_macos (0.0.1):
-    - FlutterMacOS
   - window_manager (0.2.0):
     - FlutterMacOS
 
 DEPENDENCIES:
-  - desktop_window (from `Flutter/ephemeral/.symlinks/plugins/desktop_window/macos`)
-  - file_selector_macos (from `Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos`)
   - flutter_libserialport (from `Flutter/ephemeral/.symlinks/plugins/flutter_libserialport/macos`)
   - FlutterMacOS (from `Flutter/ephemeral`)
-  - geolocator_apple (from `Flutter/ephemeral/.symlinks/plugins/geolocator_apple/darwin`)
-  - package_info_plus (from `Flutter/ephemeral/.symlinks/plugins/package_info_plus/macos`)
-  - screen_retriever_macos (from `Flutter/ephemeral/.symlinks/plugins/screen_retriever_macos/macos`)
-  - universal_ble (from `Flutter/ephemeral/.symlinks/plugins/universal_ble/darwin`)
-  - url_launcher_macos (from `Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos`)
   - window_manager (from `Flutter/ephemeral/.symlinks/plugins/window_manager/macos`)
 
 SPEC REPOS:
   trunk:
     - libserialport
 
 EXTERNAL SOURCES:
-  desktop_window:
-    :path: Flutter/ephemeral/.symlinks/plugins/desktop_window/macos
-  file_selector_macos:
-    :path: Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos
   flutter_libserialport:
     :path: Flutter/ephemeral/.symlinks/plugins/flutter_libserialport/macos
   FlutterMacOS:
     :path: Flutter/ephemeral
-  geolocator_apple:
-    :path: Flutter/ephemeral/.symlinks/plugins/geolocator_apple/darwin
-  package_info_plus:
-    :path: Flutter/ephemeral/.symlinks/plugins/package_info_plus/macos
-  screen_retriever_macos:
-    :path: Flutter/ephemeral/.symlinks/plugins/screen_retriever_macos/macos
-  universal_ble:
-    :path: Flutter/ephemeral/.symlinks/plugins/universal_ble/darwin
-  url_launcher_macos:
-    :path: Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos
   window_manager:
     :path: Flutter/ephemeral/.symlinks/plugins/window_manager/macos
 
 SPEC CHECKSUMS:
-  desktop_window: aef15b80e828d9e6e683646bbcdf0a244ac89527
-  file_selector_macos: 9e9e068e90ebee155097d00e89ae91edb2374db7
-  flutter_libserialport: 2c523cb8d8203fc6d1b0da88190da31ac970eb93
+  flutter_libserialport: d1a505fd4b05785f7b50cc7c93b361937ea1c5bd
   FlutterMacOS: d0db08ddef1a9af05a5ec4b724367152bb0500b1
-  geolocator_apple: ab36aa0e8b7d7a2d7639b3b4e48308394e8cef5e
   libserialport: 1cb25e66ef3c92a8e59c2ea3820302c3fa2268cd
-  package_info_plus: f0052d280d17aa382b932f399edf32507174e870
-  screen_retriever_macos: c5508cc3c66ff0d4db650480cf0ab691e220d933
-  universal_ble: a322ebabee64f0ec27a313e89a5dd6967f37a60f
-  url_launcher_macos: f87a979182d112f911de6820aefddaf56ee9fbfd
-  window_manager: 1d01fa7ac65a6e6f83b965471b1a7fdd3f06166c
+  window_manager: 3a1844359a6295ab1e47659b1a777e36773cd6e8
 
 PODFILE CHECKSUM: 0d3963a09fc94f580682bd88480486da345dc3f0