diff --git a/Debug.c b/Debug.c
index 5977488..e9f4c11 100755
--- a/Debug.c
+++ b/Debug.c
@@ -14,7 +14,9 @@ void vprint(const char *fmt, va_list argp) {
 }
 
 #ifdef DO_DEBUG_UART
-#define UART_PORT HAL_UART_PORT_0
+#ifndef DEBUG_UART_PORT
+#define DEBUG_UART_PORT HAL_UART_PORT_1
+#endif
 bool DebugInit() {
     halUARTCfg_t halUARTConfig;
     halUARTConfig.configured = TRUE;
@@ -28,7 +30,7 @@ bool DebugInit() {
     halUARTConfig.intEnable = TRUE;
     halUARTConfig.callBackFunc = NULL;
     HalUARTInit();
-    if (HalUARTOpen(UART_PORT, &halUARTConfig) == HAL_UART_SUCCESS) {
+    if (HalUARTOpen(DEBUG_UART_PORT, &halUARTConfig) == HAL_UART_SUCCESS) {
         LREPMaster("Initialized debug module \r\n");
         return true;
     }
@@ -39,7 +41,7 @@ void LREPMaster(uint8 *data) {
     if (data == NULL) {
         return;
     }
-    HalUARTWrite(UART_PORT, data, osal_strlen((char *)data));
+    HalUARTWrite(DEBUG_UART_PORT, data, osal_strlen((char *)data));
 }
 
 void LREP(char *format, ...) {
diff --git a/Debug.h b/Debug.h
index c9ed0a9..c7da137 100755
--- a/Debug.h
+++ b/Debug.h
@@ -31,7 +31,6 @@
   (byte & 0x02 ? '1' : '0'), \
   (byte & 0x01 ? '1' : '0')
 
-extern halUARTCfg_t halUARTConfig;
 
 void vprint(const char *fmt, va_list argp);
 extern bool DebugInit(void);
diff --git a/air_quality.h b/air_quality.h
index a1a0113..73f51b4 100644
--- a/air_quality.h
+++ b/air_quality.h
@@ -2,9 +2,10 @@
 #define AIR_QUALITY_H
 
 #define AIR_QUALITY_INVALID_RESPONSE 0xFFFF
+#define AIR_QUALITY_ABC_RESPONSE 0xFFF0
 
 typedef void (*request_measure_t)(void);
-typedef uint16 (*read_t)(void);
+typedef uint16 (*read_t)(uint8 *);
 typedef void (*set_ABC_t)(bool isEnabled);
 
 typedef struct {
diff --git a/bettery.c b/battery.c
old mode 100755
new mode 100644
similarity index 100%
rename from bettery.c
rename to battery.c
diff --git a/mhz19.c b/mhz19.c
index 9c14508..0cb9b64 100644
--- a/mhz19.c
+++ b/mhz19.c
@@ -6,14 +6,14 @@
 #include "hal_uart.h"
 
 #ifndef CO2_UART_PORT
-#define CO2_UART_PORT HAL_UART_PORT_1
+#define CO2_UART_PORT HAL_UART_PORT_0
 #endif
 
 #define MHZ18_RESPONSE_LENGTH 13
 
 static void MHZ19_SetABC(bool isEnabled);
 static void MHZ19_RequestMeasure(void);
-static uint16 MHZ19_Read(void);
+static uint16 MHZ19_Read(uint8 *response);
 
 zclAirSensor_t MHZ19_dev = {&MHZ19_RequestMeasure, &MHZ19_Read, &MHZ19_SetABC};
 
@@ -34,17 +34,14 @@ void MHZ19_RequestMeasure(void) {
     HalUARTWrite(CO2_UART_PORT, MHZ19_COMMAND_GET_PPM, sizeof(MHZ19_COMMAND_GET_PPM) / sizeof(MHZ19_COMMAND_GET_PPM[0]));
 }
 
-uint16 MHZ19_Read(void) {
-    uint8 response[MHZ18_RESPONSE_LENGTH];
-    HalUARTRead(CO2_UART_PORT, (uint8 *)&response, sizeof(response) / sizeof(response[0]));
+uint16 MHZ19_Read(uint8 *response) {
 
     if (response[0] != 0xFF || response[1] != 0x86) {
         LREPMaster("MHZ18 Invalid response\r\n");
-        HalLedSet(HAL_LED_ALL, HAL_LED_MODE_FLASH);
         return AIR_QUALITY_INVALID_RESPONSE;
     }
 
     const uint16 ppm = (((uint16)response[2]) << 8) | response[3];
-    LREP("MHZ18 Received COâ‚‚=%d ppm\r\n", ppm);
+    //LREP("MHZ18 Received COâ‚‚=%d ppm\r\n", ppm);
     return ppm;
 }
\ No newline at end of file
diff --git a/senseair.c b/senseair.c
index 5bda0e2..ea85557 100644
--- a/senseair.c
+++ b/senseair.c
@@ -6,11 +6,11 @@
 #include "hal_uart.h"
 
 #ifndef CO2_UART_PORT
-#define CO2_UART_PORT HAL_UART_PORT_1
+#define CO2_UART_PORT HAL_UART_PORT_0
 #endif
 
 static void SenseAir_RequestMeasure(void);
-static uint16 SenseAir_Read(void);
+static uint16 SenseAir_Read(uint8 *);
 static void SenseAir_SetABC(bool isEnabled);
 
 extern zclAirSensor_t sense_air_dev = {&SenseAir_RequestMeasure, &SenseAir_Read, &SenseAir_SetABC};
@@ -33,19 +33,30 @@ void SenseAir_RequestMeasure(void) {
     HalUARTWrite(CO2_UART_PORT, readCO2, sizeof(readCO2) / sizeof(readCO2[0])); 
 }
 
-uint16 SenseAir_Read(void) {
-    uint8 response[SENSEAIR_RESPONSE_LENGTH];
-    HalUARTRead(CO2_UART_PORT, (uint8 *)&response, sizeof(response) / sizeof(response[0]));
-
+uint16 SenseAir_Read(uint8 *response) {
+    
+    LREPMaster("Read startet \r\n");
+ 
+    uint8 is_equal = 1;
+    for (uint8 i=0; i<5; ++i) {
+      if (response[i] != enableABC[i]) {
+          is_equal = 0;
+          break;
+        }
+    }
+    
+    if (is_equal)
+      return AIR_QUALITY_ABC_RESPONSE;
+       
     if (response[0] != 0xFE || response[1] != 0x04) {
         LREPMaster("Invalid response\r\n");
         return AIR_QUALITY_INVALID_RESPONSE;
     }
 
     const uint8 length = response[2];
-    const uint16 status = (((uint16)response[3]) << 8) | response[4];
-    const uint16 ppm = (((uint16)response[length + 1]) << 8) | response[length + 2];
-
-    LREP("SenseAir Received COâ‚‚=%d ppm Status=0x%X\r\n", ppm, status);
+    //const uint16 status = (((uint16)response[3]) << 8) | response[4];
+    uint16 ppm = (((uint16)response[length + 1]) << 8) | response[length + 2];
+    //LREP("SenseAir Received CO2=%d ppm Status=0x%X\r\n", ppm, status);
+    //printf("SenseAir Received CO2=%d ppm Status=0x%X\r\n", ppm, status);
     return ppm;
 }
\ No newline at end of file
diff --git a/us100.c b/us100.c
new file mode 100644
index 0000000..d940f50
--- /dev/null
+++ b/us100.c
@@ -0,0 +1,48 @@
+#include "Debug.h"
+#include "us100.h"
+#include "OnBoard.h"
+
+#ifndef US100_UART_PORT
+#define US100_UART_PORT HAL_UART_PORT_0
+#endif
+
+
+uint8 readDistance[] = {0x55};
+uint8 readTemp[] = {0x50};
+
+void US100_RequestMeasureDistance(void) {
+    current_phase = DISTANCE_MEASURMENT;
+    HalUARTWrite(US100_UART_PORT, readDistance, sizeof(readDistance) / sizeof(readDistance[0])); 
+}
+void US100_RequestMeasureTemp(void) {
+    current_phase = TEMPERATURE_MEASURMENT;
+    HalUARTWrite(US100_UART_PORT, readTemp, sizeof(readTemp) / sizeof(readTemp[0])); 
+}
+
+uint16 US100_ReadDistance(void)
+{
+
+  uint8 response[2];
+  HalUARTRead(US100_UART_PORT, (uint8 *)&response, sizeof(response) / sizeof(response[0]));
+  uint16 mmDist  = response[0] * 256 + response[1]; 
+  if((mmDist > 1) && (mmDist < 10000)) 
+    {
+      printf("Distance=%d\r\n", mmDist);
+      LREP("Distance=%d \r\n", 0);
+      return mmDist;
+    }
+  return 0;
+}
+
+uint16 US100_ReadTemp(void){
+  uint8 response[1];
+  HalUARTRead(US100_UART_PORT, (uint8 *)&response, sizeof(response) / sizeof(response[0]));
+  
+  uint16 temp = response[0];
+  if((temp > 1) && (temp < 130)) // temprature is in range
+    {
+      temp -= 45; // correct 45º offset
+      printf("Temperature=%d\r\n", temp);
+    }
+return temp;  
+}
\ No newline at end of file
diff --git a/us100.h b/us100.h
new file mode 100644
index 0000000..1297fdf
--- /dev/null
+++ b/us100.h
@@ -0,0 +1,16 @@
+#ifndef us100_h
+void US100_RequestMeasureDistance(void);
+void US100_RequestMeasureTemp(void);
+uint16 US100_ReadDistance(void);
+uint16 US100_ReadTemp(void);
+
+enum {
+  DISTANCE_MEASURMENT = 0,
+  TEMPERATURE_MEASURMENT = 1,
+  NOTHING = 2
+};
+
+extern uint8 current_phase; 
+
+#define us100_h
+#endif