Initial project commit

2020-07-18 21:44:27 -04:00
parent 8a1141b373
commit fea891a268
127 changed files with 20838 additions and 0 deletions
--- a/lib/nightscout/com/eveningoutpost/dexdrip/G5Model/GlucoseRxMessage.java
+++ b/lib/nightscout/com/eveningoutpost/dexdrip/G5Model/GlucoseRxMessage.java
@@ -0,0 +1,64 @@
+package com.eveningoutpost.dexdrip.G5Model;
+
+import com.eveningoutpost.dexdrip.Models.JoH;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+import lombok.NoArgsConstructor;
+
+/**
+ * Created by jamorham on 25/11/2016.
+ *
+ * Alternate mechanism for reading data using the transmitter's internal algorithm.
+ *
+ * initial packet structure cribbed from Loopkit
+ */
+
+@NoArgsConstructor
+public class GlucoseRxMessage extends BaseGlucoseRxMessage {
+
+    private final static String TAG = G5CollectionService.TAG; // meh
+
+    public static final byte opcode = 0x31;
+
+
+    public GlucoseRxMessage(byte[] packet) {
+        UserError.Log.d(TAG, "GlucoseRX dbg: " + JoH.bytesToHex(packet));
+        if (packet.length >= 14) {
+            data = ByteBuffer.wrap(packet).order(ByteOrder.LITTLE_ENDIAN);
+            if ((data.get() == opcode) && checkCRC(packet)) {
+
+                data = ByteBuffer.wrap(packet).order(ByteOrder.LITTLE_ENDIAN);
+
+                status_raw = data.get(1);
+                status = TransmitterStatus.getBatteryLevel(data.get(1));
+                sequence = data.getInt(2);
+                timestamp = data.getInt(6);
+
+
+                int glucoseBytes = data.getShort(10); // check signed vs unsigned!!
+                glucoseIsDisplayOnly = (glucoseBytes & 0xf000) > 0;
+                glucose = glucoseBytes & 0xfff;
+
+                state = data.get(12);
+                trend = data.get(13);
+                if (glucose > 13) {
+                    unfiltered = glucose * 1000;
+                    filtered = glucose * 1000;
+                } else {
+                    filtered = glucose;
+                    unfiltered = glucose;
+                }
+
+                UserError.Log.d(TAG, "GlucoseRX: seq:" + sequence + " ts:" + timestamp + " sg:" + glucose + " do:" + glucoseIsDisplayOnly + " ss:" + status + " sr:" + status_raw + " st:" + CalibrationState.parse(state) + " tr:" + getTrend());
+
+            }
+        } else {
+            UserError.Log.d(TAG, "GlucoseRxMessage packet length received wrong: " + packet.length);
+        }
+
+    }
+
+
+}