diff --git a/scripts/speed_controller.py b/scripts/speed_controller.py
new file mode 100644
index 0000000..66623a1
--- /dev/null
+++ b/scripts/speed_controller.py
@@ -0,0 +1,136 @@
+from src.variables.service import get_variable, set_variable
+from src.modules.IndustrialAutomation.service_analog import read_0_10_out, set_0_10_out
+
+#variables names
+variable_control_channel: str = "speed_controller_channel"
+variable_control_stack: str = "speed_controller_stack"
+#variables rpm
+variable_actual_rpm: str = "actual_rpm"
+variable_requested_rpm: str = "requested_rpm"
+#variables limits
+variable_max_rpm: str = "max_rpm"
+variable_max_U: str = "max_U"
+#variables controling step
+variable_control_step_U: str = "control_step_U"
+variable_control_step_rpm: str = "control_step_rpm"
+variable_control_step_U_1: str = "control_step_U_1"
+variable_control_step_rpm_1: str = "control_step_rpm_1"
+variable_control_step_U_2: str = "control_step_U_2"
+variable_control_step_rpm_2: str = "control_step_rpm_2"
+variable_control_step_U_3: str = "control_step_U_3"
+variable_control_step_rpm_3: str = "control_step_rpm_3"
+
+#init variables in variables system
+if get_variable(variable_actual_rpm) == None:
+    set_variable(variable_actual_rpm, 0, True)
+
+if get_variable(variable_requested_rpm) == None or int(get_variable(variable_requested_rpm)) != 0:
+    set_variable(variable_requested_rpm, 0, True)
+
+if get_variable(variable_max_rpm) == None:
+    set_variable(variable_max_rpm, 1900, True)
+
+if get_variable(variable_max_U) == None:
+    set_variable(variable_max_U, 8, True)
+
+if get_variable(variable_control_step_U) == None:
+    set_variable(variable_control_step_U, 0.1, True)
+
+if get_variable(variable_control_step_rpm) == None:
+    set_variable(variable_control_step_rpm, 200, True)
+
+if get_variable(variable_control_step_U_1) == None:
+    set_variable(variable_control_step_U_1, 0.003, True)
+
+if get_variable(variable_control_step_rpm_1) == None:
+    set_variable(variable_control_step_rpm_1, 80, True)
+
+if get_variable(variable_control_step_U_2) == None:
+    set_variable(variable_control_step_U_2, 0.0005, True)
+
+if get_variable(variable_control_step_rpm_2) == None:
+    set_variable(variable_control_step_rpm_2, 20, True)
+
+if get_variable(variable_control_step_U_3) == None:
+    set_variable(variable_control_step_U_3, 0.0001, True)
+
+if get_variable(variable_control_step_rpm_3) == None:
+    set_variable(variable_control_step_rpm_3, 1, True)
+
+if get_variable(variable_control_stack) == None:
+    set_variable(variable_control_stack, 0, True)
+
+if get_variable(variable_control_channel) == None:
+    set_variable(variable_control_channel, 1, True)
+
+
+# set rpm control output
+def set_output(value: float):
+    if value < float(get_variable(variable_max_U)):
+        set_0_10_out(stack=int(get_variable(variable_control_stack)), channel=int(get_variable(variable_control_channel)), value=value)
+
+
+#control RPM
+def rpm_control():
+    actual_rpm = float(get_variable(variable_actual_rpm))
+    requested_rpm = float(get_variable(variable_requested_rpm))
+    actual_set_U = read_0_10_out(stack=int(get_variable(variable_control_stack)), channel=int(get_variable(variable_control_channel)))
+
+    #slow down rotating if over maximum
+    if actual_rpm > float(get_variable(variable_max_rpm)):
+        set_output(actual_set_U - 1)
+        return
+    
+    #algorithm for RPM control
+    if (requested_rpm - float(get_variable(variable_control_step_rpm))) < actual_rpm < (requested_rpm + float(get_variable(variable_control_step_rpm))):
+        if requested_rpm < actual_rpm:
+            set_output(actual_set_U - float(get_variable(variable_control_step_U)))
+        elif requested_rpm > actual_rpm:
+            set_output(actual_set_U + float(get_variable(variable_control_step_U)))
+        return
+    
+    if (requested_rpm - float(get_variable(variable_control_step_rpm_1))) < actual_rpm < (requested_rpm + float(get_variable(variable_control_step_rpm_1))):
+        if requested_rpm < actual_rpm:
+            set_output(actual_set_U - float(get_variable(variable_control_step_U_1)))
+        elif requested_rpm > actual_rpm:
+            set_output(actual_set_U + float(get_variable(variable_control_step_U_1)))
+        return
+    
+    if (requested_rpm - float(get_variable(variable_control_step_rpm_2))) < actual_rpm < (requested_rpm + float(get_variable(variable_control_step_rpm_2))):
+        if requested_rpm < actual_rpm:
+            set_output(actual_set_U - float(get_variable(variable_control_step_U_2)))
+        elif requested_rpm > actual_rpm:
+            set_output(actual_set_U + float(get_variable(variable_control_step_U_2)))
+        return
+    
+    if (requested_rpm - float(get_variable(variable_control_step_rpm_3))) < actual_rpm < (requested_rpm + float(get_variable(variable_control_step_rpm_3))):
+        if requested_rpm < actual_rpm:
+            set_output(actual_set_U - float(get_variable(variable_control_step_U_3)))
+        elif requested_rpm > actual_rpm:
+            set_output(actual_set_U + float(get_variable(variable_control_step_U_3)))
+        return
+
+    
+    
+    
+    
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diff --git a/scripts/timer.py b/scripts/timer.py
index d50378e..f31a6cd 100644
--- a/scripts/timer.py
+++ b/scripts/timer.py
@@ -4,14 +4,15 @@ from apscheduler.triggers.cron import CronTrigger
 import os
 
 
-
 scheduler = BackgroundScheduler()
 if bool(os.getenv("BACKGROUND_SCRIPTS_RUN", 0)):
     print("run")
     scheduler.start()
 
 
-#example
-#from scripts.example import test_function
-#scheduler.add_job(test_function, trigger=IntervalTrigger(seconds=60))
-#end example
+from scripts.speed_controller import rpm_control
+scheduler.add_job(rpm_control, trigger=IntervalTrigger(seconds=0.2))
+
+
+
+