diff -r 000000000000 -r b74b0e4902c3 main/task_driver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main/task_driver.h	Sat Oct 20 13:23:15 2018 +0200
@@ -0,0 +1,59 @@
+#ifndef	_TASK_DRIVER_H
+#define	_TASK_DRIVER_H
+
+/**
+ * @file task_driver.h
+ * @brief The interface to the FreeRTOS driver task. This task drives the Solid
+ *        State Relays (SSR) to power the Mash Lauter Tun (MLT) and the Hot
+ *        Liquer Tank (HLT) heating elements. It also controls the pump relay.
+ *
+ * It takes the temperature readings from the DS18B20 task.
+ */
+
+
+typedef enum {
+    MLT_MODE_NONE = 0,			///< Not active
+    MLT_MODE_BANG = 1,			///< Bang on/off mode
+    MLT_MODE_PID = 2,			///< PID mode
+    MLT_MODE_OFF = 3,			///< Off but show setpoint
+    MLT_MODE_EXT = 4,			///< External regulation
+} MLT_MODE_TYPE;
+
+typedef enum {
+    HLT_MODE_NONE = 0,			///< Not active
+    HLT_MODE_BANG = 1,			///< Bang on/off mode
+    HLT_MODE_OFF = 2,			///< Off but show setpoint
+    HLT_MODE_ON = 3,			///< On if free
+} HLT_MODE_TYPE;
+
+
+/**
+ * @brief Structure containing the information of the driver task.
+ */
+typedef struct {
+    bool   enable;			///< Enable outputs
+    int    mlt_gpio;			///< MLT SSR GPIO pin
+    int    mlt_mode;			///< MLT Mode: 0 = off, 1 = bang on/off, 2 = PID, 3 = cooling
+    double mlt_sp;			///< Setpoint MLT temperature
+    double mlt_pv;			///< Current MLT temperature
+    int    mlt_power;			///< Current MLT drive power %
+    int    hlt_gpio;			///< HLT SSR  GPIO pin
+    int    hlt_mode;			///< HLT Mode:  0 = off, 1 = bang on/off, 2 = always on
+    double hlt_sp;			///< Setpoint HLT temperature
+    double hlt_pv;			///< Current HLT temperature
+    int    hlt_power;			///< Current HLT drive power %
+    bool   hlt_and_mlt;			///< True if both MLT and HLT are allowed at the same time.
+    int	   pump_gpio;			///< Pump SSR GPIO pin
+    int	   pump_run;			///< Pump on/off
+} DRIVER_State;
+
+
+/**
+ * @brief FreeRTOS driver task. This task drives the Solid
+ *        State Relays (SSR) to power the Mash Lauter Tun (MLT) and the Hot
+ *        Liquer Tank (HLT) heating elements. It also controls the pump relay.
+ */
+void task_driver(void *);
+
+#endif
+