diff --git a/esphome/components/optolink/binary_sensor/optolink_binary_sensor.h b/esphome/components/optolink/binary_sensor/optolink_binary_sensor.h
index 4cdb5bd1f8..67f8e99307 100644
--- a/esphome/components/optolink/binary_sensor/optolink_binary_sensor.h
+++ b/esphome/components/optolink/binary_sensor/optolink_binary_sensor.h
@@ -5,7 +5,6 @@
 #include "esphome/components/binary_sensor/binary_sensor.h"
 #include "../optolink.h"
 #include "../datapoint_component.h"
-#include "VitoWiFi.h"
 
 namespace esphome {
 namespace optolink {
diff --git a/esphome/components/optolink/number/optolink_number.cpp b/esphome/components/optolink/number/optolink_number.cpp
index 3dd850448b..3fcd847d14 100644
--- a/esphome/components/optolink/number/optolink_number.cpp
+++ b/esphome/components/optolink/number/optolink_number.cpp
@@ -2,7 +2,6 @@
 
 #include "optolink_number.h"
 #include "../optolink.h"
-#include "VitoWiFi.h"
 
 namespace esphome {
 namespace optolink {
@@ -20,6 +19,30 @@ void OptolinkNumber::control(float value) {
   }
 };
 
+void OptolinkNumber::datapoint_value_changed(uint8_t state) {
+  if (traits.get_min_value() >= 0) {
+    publish_state(state);
+  } else {
+    publish_state((sint8_t) state);
+  }
+};
+
+void OptolinkNumber::datapoint_value_changed(uint16_t state) {
+  if (traits.get_min_value() >= 0) {
+    publish_state(state);
+  } else {
+    publish_state((sint16_t) state);
+  }
+};
+
+void OptolinkNumber::datapoint_value_changed(uint32_t state) {
+  if (traits.get_min_value() >= 0) {
+    publish_state(state);
+  } else {
+    publish_state((sint32_t) state);
+  }
+};
+
 }  // namespace optolink
 }  // namespace esphome
 
diff --git a/esphome/components/optolink/number/optolink_number.h b/esphome/components/optolink/number/optolink_number.h
index 49bd75700b..d7d3062a31 100644
--- a/esphome/components/optolink/number/optolink_number.h
+++ b/esphome/components/optolink/number/optolink_number.h
@@ -3,9 +3,8 @@
 #ifdef USE_ARDUINO
 
 #include "esphome/components/number/number.h"
-#include "../datapoint_component.h"
 #include "../optolink.h"
-#include "VitoWiFi.h"
+#include "../datapoint_component.h"
 
 namespace esphome {
 namespace optolink {
@@ -21,9 +20,9 @@ class OptolinkNumber : public DatapointComponent, public esphome::number::Number
 
   const StringRef &get_component_name() override { return get_name(); }
   void datapoint_value_changed(float state) override { publish_state(state); };
-  void datapoint_value_changed(uint8_t state) override { publish_state(state); };
-  void datapoint_value_changed(uint16_t state) override { publish_state(state); };
-  void datapoint_value_changed(uint32_t state) override { publish_state(state); };
+  void datapoint_value_changed(uint8_t state) override;
+  void datapoint_value_changed(uint16_t state) override;
+  void datapoint_value_changed(uint32_t state) override;
 };
 
 }  // namespace optolink
diff --git a/esphome/components/optolink/optolink.cpp b/esphome/components/optolink/optolink.cpp
index 4921297c5f..e46ebe9505 100644
--- a/esphome/components/optolink/optolink.cpp
+++ b/esphome/components/optolink/optolink.cpp
@@ -3,7 +3,6 @@
 #include "esphome/core/defines.h"
 #include "esphome/core/log.h"
 #include "optolink.h"
-#include "VitoWiFi.h"
 
 #if defined(VITOWIFI_PROTOCOL)
 // NOLINTNEXTLINE
@@ -40,7 +39,7 @@ void Optolink::setup() {
 }
 
 void Optolink::loop() {
-  ESP_LOGD(TAG, "queue size: %d", VitoWiFi.queueSize());
+  // ESP_LOGD(TAG, "queue size: %d", VitoWiFi.queueSize());
   VitoWiFi.loop();
 }
 
diff --git a/esphome/components/optolink/select/optolink_select.cpp b/esphome/components/optolink/select/optolink_select.cpp
index 7f6e068472..0f21c6d0c6 100644
--- a/esphome/components/optolink/select/optolink_select.cpp
+++ b/esphome/components/optolink/select/optolink_select.cpp
@@ -2,7 +2,6 @@
 
 #include "optolink_select.h"
 #include "../optolink.h"
-#include "VitoWiFi.h"
 
 namespace esphome {
 namespace optolink {
diff --git a/esphome/components/optolink/select/optolink_select.h b/esphome/components/optolink/select/optolink_select.h
index f3512cf545..e578a858b1 100644
--- a/esphome/components/optolink/select/optolink_select.h
+++ b/esphome/components/optolink/select/optolink_select.h
@@ -2,11 +2,10 @@
 
 #ifdef USE_ARDUINO
 
-#include <map>
 #include "esphome/components/select/select.h"
 #include "../optolink.h"
 #include "../datapoint_component.h"
-#include "VitoWiFi.h"
+#include <map>
 
 namespace esphome {
 namespace optolink {
diff --git a/esphome/components/optolink/sensor/__init__.py b/esphome/components/optolink/sensor/__init__.py
index a7ada97826..4c91a4666f 100644
--- a/esphome/components/optolink/sensor/__init__.py
+++ b/esphome/components/optolink/sensor/__init__.py
@@ -6,6 +6,7 @@ from esphome.const import (
     CONF_BYTES,
     CONF_DIV_RATIO,
     CONF_ID,
+    CONF_MIN_VALUE,
 )
 from .. import CONF_OPTOLINK_ID, SENSOR_BASE_SCHEMA, optolink_ns
 
@@ -22,6 +23,7 @@ CONFIG_SCHEMA = (
             cv.GenerateID(): cv.declare_id(OptolinkSensor),
             cv.Required(CONF_ADDRESS): cv.hex_uint32_t,
             cv.Required(CONF_BYTES): cv.one_of(1, 2, 4, int=True),
+            cv.Optional(CONF_MIN_VALUE): cv.float_,
         }
     )
     .extend(cv.COMPONENT_SCHEMA)
@@ -39,3 +41,5 @@ async def to_code(config):
     cg.add(var.set_address(config[CONF_ADDRESS]))
     cg.add(var.set_bytes(config[CONF_BYTES]))
     cg.add(var.set_div_ratio(config[CONF_DIV_RATIO]))
+    if CONF_MIN_VALUE in config:
+        cg.add(var.set_min_value(config[CONF_MIN_VALUE]))
diff --git a/esphome/components/optolink/sensor/optolink_sensor.cpp b/esphome/components/optolink/sensor/optolink_sensor.cpp
new file mode 100644
index 0000000000..a1c2df7815
--- /dev/null
+++ b/esphome/components/optolink/sensor/optolink_sensor.cpp
@@ -0,0 +1,40 @@
+#ifdef USE_ARDUINO
+
+#include "optolink_sensor.h"
+#include "../optolink.h"
+
+namespace esphome {
+namespace optolink {
+
+static const char *const TAG = "optolink.sensor";
+
+void OptolinkSensor::set_min_value(float min_value) { min_value_ = -29.3; }
+
+void OptolinkSensor::datapoint_value_changed(uint8_t state) {
+  if (min_value_ >= 0.0) {
+    publish_state(state);
+  } else {
+    publish_state((int8_t) state);
+  }
+};
+
+void OptolinkSensor::datapoint_value_changed(uint16_t state) {
+  if (min_value_ >= 0.0) {
+    publish_state(state);
+  } else {
+    publish_state((int16_t) state);
+  }
+}
+
+void OptolinkSensor::datapoint_value_changed(uint32_t state) {
+  if (min_value_ >= 0.0) {
+    publish_state(state);
+  } else {
+    publish_state((int32_t) state);
+  }
+};
+
+}  // namespace optolink
+}  // namespace esphome
+
+#endif
diff --git a/esphome/components/optolink/sensor/optolink_sensor.h b/esphome/components/optolink/sensor/optolink_sensor.h
index 7538fd6390..59e9d4bdb7 100644
--- a/esphome/components/optolink/sensor/optolink_sensor.h
+++ b/esphome/components/optolink/sensor/optolink_sensor.h
@@ -5,7 +5,7 @@
 #include "esphome/components/sensor/sensor.h"
 #include "../optolink.h"
 #include "../datapoint_component.h"
-#include "VitoWiFi.h"
+#include <cfloat>
 
 namespace esphome {
 namespace optolink {
@@ -16,15 +16,20 @@ class OptolinkSensor : public DatapointComponent, public esphome::sensor::Sensor
     set_state_class(esphome::sensor::STATE_CLASS_MEASUREMENT);
   }
 
+  void set_min_value(float min_value);
+
  protected:
   void setup() { setup_datapoint(); }
   void update() override { datapoint_read_request(); }
 
   const StringRef &get_component_name() override { return get_name(); }
   void datapoint_value_changed(float state) override { publish_state(state); };
-  void datapoint_value_changed(uint8_t state) override { publish_state(state); };
-  void datapoint_value_changed(uint16_t state) override { publish_state(state); };
-  void datapoint_value_changed(uint32_t state) override { publish_state(state); };
+  void datapoint_value_changed(uint8_t state) override;
+  void datapoint_value_changed(uint16_t state) override;
+  void datapoint_value_changed(uint32_t state) override;
+
+ private:
+  float min_value_ = -FLT_MAX;
 };
 }  // namespace optolink
 }  // namespace esphome
diff --git a/esphome/components/optolink/switch/optolink_switch.cpp b/esphome/components/optolink/switch/optolink_switch.cpp
index c5bec71a8c..cfd14e287f 100644
--- a/esphome/components/optolink/switch/optolink_switch.cpp
+++ b/esphome/components/optolink/switch/optolink_switch.cpp
@@ -2,7 +2,6 @@
 
 #include "optolink_switch.h"
 #include "../optolink.h"
-#include "VitoWiFi.h"
 
 namespace esphome {
 namespace optolink {
diff --git a/esphome/components/optolink/switch/optolink_switch.h b/esphome/components/optolink/switch/optolink_switch.h
index ce97179ea6..75cbe85c36 100644
--- a/esphome/components/optolink/switch/optolink_switch.h
+++ b/esphome/components/optolink/switch/optolink_switch.h
@@ -3,9 +3,8 @@
 #ifdef USE_ARDUINO
 
 #include "esphome/components/switch/switch.h"
-#include "../datapoint_component.h"
 #include "../optolink.h"
-#include "VitoWiFi.h"
+#include "../datapoint_component.h"
 
 namespace esphome {
 namespace optolink {
diff --git a/esphome/components/optolink/text_sensor/optolink_text_sensor.cpp b/esphome/components/optolink/text_sensor/optolink_text_sensor.cpp
index 1225834a77..9d1d8d1e32 100644
--- a/esphome/components/optolink/text_sensor/optolink_text_sensor.cpp
+++ b/esphome/components/optolink/text_sensor/optolink_text_sensor.cpp
@@ -4,7 +4,6 @@
 #include "optolink_text_sensor.h"
 #include "../optolink.h"
 #include "../datapoint_component.h"
-#include "VitoWiFi.h"
 
 namespace esphome {
 namespace optolink {
diff --git a/esphome/components/optolink/text_sensor/optolink_text_sensor.h b/esphome/components/optolink/text_sensor/optolink_text_sensor.h
index 6dd1210dbb..1583da1d99 100644
--- a/esphome/components/optolink/text_sensor/optolink_text_sensor.h
+++ b/esphome/components/optolink/text_sensor/optolink_text_sensor.h
@@ -5,7 +5,6 @@
 #include "esphome/components/text_sensor/text_sensor.h"
 #include "../optolink.h"
 #include "../datapoint_component.h"
-#include "VitoWiFi.h"
 
 namespace esphome {
 namespace optolink {