until my TBEAM is fixed, leave GPS power on in sleep sometimes

TODO.md

@@ -24,6 +24,7 @@ being I have it set at 2 minutes to ensure enough time for a GPS lock from scrat
 
 Items to complete before the first beta release.
 
+* "AXP192 interrupt is not firing, remove this temporary polling of battery state"
 * make mesh aware network timing state machine (sync wake windows to gps time)
 * turn light sleep on aggressively (while lora is on but BLE off)
 * research and implement better mesh algorithm

src/PowerFSM.cpp

@@ -6,6 +6,7 @@
 #include "screen.h"
 #include "PowerFSM.h"
 #include "GPS.h"
+#include "main.h"
 
 static void sdsEnter()
 {
@@ -28,6 +29,8 @@ static void lsEnter()
         delay(10); // Kinda yucky - wait until radio says say we can shutdown (finished in process sends/receives)
 
     gps.prepareSleep(); // abandon in-process parsing
+
+    if(!isUSBPowered) // FIXME - temp hack until we can put gps in sleep mode, if we have AC when we go to sleep then leave GPS on
     setGPSPower(false); // kill GPS power
 }
 

src/main.h

@@ -1,4 +1,6 @@
 #pragma once
 
 extern bool axp192_found;
-extern bool ssd1306_found;
+extern bool ssd1306_found;
+extern bool isCharging;
+extern bool isUSBPowered;

src/main.ino

@@ -175,8 +175,8 @@ void axp192Init()
       axp.clearIRQ();
 #endif
 
-      isCharging = axp.isChargeing();
+      isCharging = axp.isChargeing() ? 1 : 0;
-      isUSBPowered = axp.isVBUSPlug();
+      isUSBPowered = axp.isVBUSPlug() ? 1 : 0;
     }
     else
     {
@@ -356,11 +356,15 @@ void loop()
 
       DEBUG_MSG("pmu irq!\n");
 
-      isCharging = axp.isChargeing();
+      isCharging = axp.isChargeing() ? 1 : 0;
-      isUSBPowered = axp.isVBUSPlug();
+      isUSBPowered = axp.isVBUSPlug() ? 1 : 0;
 
       axp.clearIRQ();
     }
+
+    // FIXME AXP192 interrupt is not firing, remove this temporary polling of battery state
+    isCharging = axp.isChargeing() ? 1 : 0;
+    isUSBPowered = axp.isVBUSPlug() ? 1 : 0;
 #endif
   }
 #endif

src/screen.cpp

@@ -30,6 +30,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "screen.h"
 #include "mesh-pb-constants.h"
 #include "NodeDB.h"
+#include "main.h"
 
 #define FONT_HEIGHT 14 // actually 13 for "ariel 10" but want a little extra space
 #define FONT_HEIGHT_16 (ArialMT_Plain_16[1] + 1)
@@ -442,8 +443,12 @@ void drawDebugInfo(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, i
     static char channelStr[20];
     snprintf(channelStr, sizeof(channelStr), "%s", channelSettings.name);
 
+    // We don't show battery levels yet - for now just lie and show debug info
+    static char batStr[20];
+    snprintf(batStr, sizeof(channelStr), "Batt %x%%", (isCharging << 1) + isUSBPowered);
+
     const char *fields[] = {
-        "Batt 89%",
+        batStr,
         "GPS 75%",
         usersStr,
         channelStr,