Bugfix: Correct power signalling issues

iot/main/gps.cpp

@@ -57,8 +57,8 @@ GPSLocation gps_fetch() {
 					Serial.println();
 					ticks = 0;
 				}
+				ms_last_update = millis();
 			}
-			ms_last_update = millis();
 			continue;
 		}
 		

iot/main/main.ino

@@ -22,6 +22,8 @@ void setup() {
 	Serial.println(F("[main] Starting"));
 	random_begin();
 	
+	power_init();
+	
 	DISPLAY_FREE_MEMORY();
 	GPSLocation gps_data = gps_fetch();
 	DISPLAY_FREE_MEMORY();

iot/main/power.cpp

@@ -2,11 +2,15 @@
 
 #include "settings.h"
 
+void power_init() {
+	pinMode(PIN_TPL_DONE, OUTPUT);
+	digitalWrite(PIN_TPL_DONE, LOW);
+}
+
 void power_off() {
 	Serial.println(F("[power] Shutting down"));
 	// Serial.println(F("[power] Switching GPS module to standby"));
 	// power_gps_standby();
-	pinMode(PIN_TPL_DONE, OUTPUT);
 	digitalWrite(PIN_TPL_DONE, HIGH);
 	
 	// Wait until we're turned off

iot/main/power.h

@@ -1,4 +1,10 @@
 
+/**
+ * Initialises the TPL5111 done pin to be LOW, so that it catches it when we 
+ * set it to  HIGH later.
+ */
+void power_init();
+
 /**
  * Signals that our work is complete and that we can turn off now to the 
  * TPL5111.

iot/main/settings.h

@@ -25,7 +25,7 @@
 #define PIN_SPI_DATA	9
 
 // The 'done' pin to pulse to signal to the TPL5111
-#define PIN_TPL_DONE	8
+#define PIN_TPL_DONE	A0
 
 // Uncomment to print RAM diagnostics at regular intervals.
 //#define ENABLE_MEMORY_DIAGNOSTICS