T1000-E hardware updates and GPS positioning accuracy optimisation (#6003)

* T1000-E button setting update

* T1000-E GNSS lock error fix

* T1000-E GNSS improve detection success

---------

Co-authored-by: WayenWeng <jinyuan.weng@seeed.cc>

src/gps/GPS.cpp

@@ -449,7 +449,22 @@ bool GPS::setup()
     if (!didSerialInit) {
         int msglen = 0;
         if (tx_gpio && gnssModel == GNSS_MODEL_UNKNOWN) {
+#ifdef TRACKER_T1000_E
+            // add power up/down strategy, improve ag3335 detection success
+            digitalWrite(PIN_GPS_EN, LOW);
+            delay(500);
+            digitalWrite(GPS_VRTC_EN, LOW);
+            delay(1000);
+            digitalWrite(GPS_VRTC_EN, HIGH);
+            delay(500);
+            digitalWrite(PIN_GPS_EN, HIGH);
+            delay(1000);
+#endif
+#ifdef TRACKER_T1000_E
+            if (probeTries < 5) {
+#else
             if (probeTries < 2) {
+#endif
                 LOG_DEBUG("Probe for GPS at %d", serialSpeeds[speedSelect]);
                 gnssModel = probe(serialSpeeds[speedSelect]);
                 if (gnssModel == GNSS_MODEL_UNKNOWN) {
@@ -460,7 +475,11 @@ bool GPS::setup()
                 }
             }
             // Rare Serial Speeds
+#ifdef TRACKER_T1000_E
+            if (probeTries == 5) {
+#else
             if (probeTries == 2) {
+#endif
                 LOG_DEBUG("Probe for GPS at %d", rareSerialSpeeds[speedSelect]);
                 gnssModel = probe(rareSerialSpeeds[speedSelect]);
                 if (gnssModel == GNSS_MODEL_UNKNOWN) {
@@ -772,6 +791,9 @@ void GPS::setPowerState(GPSPowerState newState, uint32_t sleepTime)
         setPowerPMU(true);                                        // Power (PMU): on
         writePinStandby(false);                                   // Standby (pin): awake (not standby)
         setPowerUBLOX(true);                                      // Standby (UBLOX): awake
+#ifdef GNSS_AIROHA
+        lastFixStartMsec = 0;
+#endif
         break;
 
     case GPS_SOFTSLEEP:

variants/tracker-t1000-e/variant.h

@@ -55,7 +55,7 @@ extern "C" {
 #define BUTTON_PIN (0 + 6) // P0.06
 #define BUTTON_ACTIVE_LOW false
 #define BUTTON_ACTIVE_PULLUP false
-#define BUTTON_SENSE_TYPE 0x6
+#define BUTTON_SENSE_TYPE 0x5 // enable input pull-down
 
 #define HAS_WIRE 1