     // Collect full set of environmental values before entering loop() in normal mode.
     // This should also help ensure that sensors are properly initialised.
 
-    // No external sensors are *assumed* present if running alt main loop.
+    // No external sensors are *assumed* present if running alt main loop
     // This may mean that the alt loop/POST will have to initialise them explicitly,
     // and the initial seed entropy may be marginally reduced also.
+    const int cV = Supply_cV.read();
+    DEBUG_SERIAL_PRINT_FLASHSTRING("V: ");
+    DEBUG_SERIAL_PRINT(cV);
+    DEBUG_SERIAL_PRINTLN();
     const int heat = TemperatureC16.read();
     DEBUG_SERIAL_PRINT_FLASHSTRING("T: ");
     DEBUG_SERIAL_PRINT(heat);
     DEBUG_SERIAL_PRINTLN();
+    const uint8_t rh = RelHumidity.read();
+    DEBUG_SERIAL_PRINT_FLASHSTRING("RH%: ");
+    DEBUG_SERIAL_PRINT(rh);
+    DEBUG_SERIAL_PRINTLN();
     const int light = AmbLight.read();
     DEBUG_SERIAL_PRINT_FLASHSTRING("L: ");
     DEBUG_SERIAL_PRINT(light);
     DEBUG_SERIAL_PRINTLN();
-    const uint8_t rh = RelHumidity.read();
-    DEBUG_SERIAL_PRINT_FLASHSTRING("RH%: ");
-    DEBUG_SERIAL_PRINT(rh);
-    DEBUG_SERIAL_PRINTLN();
-//    const int tempPot = TempPot.read();
-//    DEBUG_SERIAL_PRINT_FLASHSTRING("temp pot: ");
-//    DEBUG_SERIAL_PRINT(tempPot);
-//    DEBUG_SERIAL_PRINTLN();
+    const int tempPot = TempPot.read();
+    DEBUG_SERIAL_PRINT_FLASHSTRING("temp pot: ");
+    DEBUG_SERIAL_PRINT(tempPot);
+    DEBUG_SERIAL_PRINTLN();
 
     // Initialised: turn main/heatcall UI LED off.
     OTV0P2BASE::LED_HEATCALL_OFF();

/**
 * Temp pot
 */
//#define TEMP_POT_AVAILABLE
//// Sensor for temperature potentiometer/dial UI control.
//// Correct for DORM1/TRV1 with embedded REV7.
//// REV7 does not drive pot from IO_POWER_UP.
//typedef OTV0P2BASE::SensorTemperaturePot<decltype(Occupancy), &Occupancy, 48, 296, false> TempPot_t;
//TempPot_t TempPot;

/**
 * Ambient Light Sensor

 * - UART       Disable
 */

/**
 * Dummy Types
 */
// Placeholder class with dummy static status methods to reduce code complexity.
typedef OTV0P2BASE::DummySensorOccupancyTracker OccupancyTracker;

/**
 * Supply Voltage instance
 */
// Sensor for supply (eg battery) voltage in millivolts.
// Singleton implementation/instance.
OTV0P2BASE::SupplyVoltageCentiVolts Supply_cV;

/*
 * Radio instance
 */
