diff --git a/.settings/language.settings.xml b/.settings/language.settings.xml
index 34e6a9d..d13e4c8 100644
--- a/.settings/language.settings.xml
+++ b/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-588101754177311339" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1262840214205683626" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-606449587763093902" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1244492380619901063" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/usrc/hardware.cpp b/usrc/hardware.cpp
index fd05d0e..23816a2 100644
--- a/usrc/hardware.cpp
+++ b/usrc/hardware.cpp
@@ -92,6 +92,14 @@ void dumphpp272data(hpp272_data_t *data) {
   printf("water_vapor_saturation_pressure_h2o_h2o2: %d\n", data->water_vapor_saturation_pressure_h2o_h2o2);
 }
 
+int hydrogen_peroxide_volume_get_ppm() {
+  uint32_t adc_val    = ADC_Get_Average(3, 12);
+  float    voltage    = adc_val * 3.3 / 4096;
+  float    current_ma = voltage / 150.0;
+  float    ppm        = (current_ma - 4.0) / 16.0 * 2000;
+  return ppm;
+}
+
 void Hardware::initialize(int deviceId) {
   m_device_id = deviceId;
 
@@ -220,14 +228,22 @@ int32_t Hardware::process_rx_packet(from_where_t fromwhere, uint8_t *packet, int
   }
 
   static hpp272_data_t fake_hpp272data;
-  //
   PROCESS_CMD(kcmd_m211887_operation, 0, 1) {
     // hpp272_data_t *hpp272data = hpp272.readVal();
 
-    fake_hpp272data.hydrogen_peroxide_volume                 = 101;
-    fake_hpp272data.h2o_h2o2_rs                              = 102;
-    fake_hpp272data.temperature1                             = 103;
-    fake_hpp272data.relative_humidity                        = 104;
+#if 0
+  data.h2o2       = m_hpp272_data_1.hydrogen_peroxide_volume;
+  data.humid      = m_hpp272_data_1.relative_humidity / 100;
+  data.temp       = m_hpp272_data_1.temperature1 / 100;
+  data.saturation = m_hpp272_data_1.h2o_h2o2_rs / 100;
+#endif
+
+    fake_hpp272data.hydrogen_peroxide_volume = hydrogen_peroxide_volume_get_ppm();  // ppm
+    fake_hpp272data.relative_humidity        = 50 * 100;                            // %RH * 100
+    fake_hpp272data.temperature1             = 25 * 100;                            // °C * 100
+    fake_hpp272data.h2o_h2o2_rs              = 1 * 100;                             // %RS * 100
+
+#if 0
     fake_hpp272data.absolute_hydrogen_peroxide               = 105;
     fake_hpp272data.h2o_h2o2dew_point_temperature            = 106;
     fake_hpp272data.reserved1                                = 107;
@@ -238,7 +254,9 @@ int32_t Hardware::process_rx_packet(from_where_t fromwhere, uint8_t *packet, int
     fake_hpp272data.temperature2                             = 112;
     fake_hpp272data.h2o2_vapor_pressure                      = 113;
     fake_hpp272data.water_vapor_saturation_pressure_h2o_h2o2 = 114;
-    hpp272_data_t *hpp272data                                = &fake_hpp272data;
+#endif
+
+    hpp272_data_t *hpp272data = &fake_hpp272data;
     if (hpp272data) {
       receipt[0] = 1;
       receipt[1] = 0;