Pinecil v2 tune via PID (#1827)

* Start PWM after adc irq fully done

* Filter len 4

* Use comparitor 2 on timer for wrap around

* Update IRQ.cpp

* Tip measurements are uint16_t

Update BSP.cpp

Update BSP.cpp

* WiP PID

move pid tuning to config

Update PIDThread.cpp

* Handle PWM Timer gitchy comparitor

* Tuning

* Dampen with Kd

* Cleaning up

* Use TemperatureType_t for getTipTemp()

* Add small rolling average to user GUI temp to reduce flicker

* Trigger PID when adc is skipped (will use old values)

source/Core/BSP/Pinecilv2/configuration.h

@@ -160,10 +160,16 @@
 #define HALL_SI7210
 #define DEBUG_UART_OUTPUT
 #define HAS_POWER_DEBUG_MENU
-#define HARDWARE_MAX_WATTAGE_X10 750
-#define BLE_ENABLED
-#define NEEDS_VBUS_PROBE 0
-#define CANT_DIRECT_READ_SETTINGS
+#define HARDWARE_MAX_WATTAGE_X10  750
+#define BLE_ENABLED                   // We have a BLE stack
+#define NEEDS_VBUS_PROBE          0   // No vbus probe, its not connected in pcb
+#define CANT_DIRECT_READ_SETTINGS     // We cant memcpy settings due to flash cache
+#define TIP_CONTROL_PID               // We use PID rather than integrator
+#define TIP_PID_KP                45  // Reasonable compromise for most tips so far
+#define TIP_PID_KI                9   // About as high for stability across tips
+#define TIP_PID_KD                200 // Helps dampen smaller tips; ~= nothing for larger tips
+#define FILTER_DISPLAYED_TIP_TEMP 8   // Filtering for GUI display
+
 #endif /* Pinecilv2 */
 
 #define FLASH_PAGE_SIZE (1024) // Read pages