add active state for taenzer

taenzer.c

@@ -21,6 +21,7 @@ taenzer_state_t taenzer_state = {
     .homed = 0,
     .pos = 0,
     .force_setpoint = TAENZER_KRAFT_SETPOINT,
+    .active = 0
 };
 
 double pid(PID_vars *vars, double current_err) {
@@ -71,9 +72,12 @@ void do_taenzer(){
         send_info();
 #endif
     }
+    if (read_Input(BTN_TAENZER_START, RISING)) {
+        taenzer_state.active = 1;
+    }
 
     /* Force regualtion */
-    if(kraftsensor_valid && taenzer_state.homed && taenzer_state.pos >= 0 && taenzer_state.pos < 500000){
+    if(kraftsensor_valid && taenzer_state.active && taenzer_state.homed && taenzer_state.pos >= 0 && taenzer_state.pos < 500000){
         int16_t err = (kraftsensor_value - taenzer_state.force_setpoint);
 
         double pid_out = pid(&regler, err);

taenzer.h

@@ -7,6 +7,7 @@ typedef volatile struct {
     uint8_t homed;
     uint32_t pos;
     int16_t force_setpoint;
+    uint8_t active;
 } taenzer_state_t;
 extern taenzer_state_t taenzer_state;