diff --git a/platformio.ini b/platformio.ini
index e9949c1..75e964d 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -317,6 +317,14 @@ build_flags =
     -D SENSOR_VL53L1X_minchange=200
     -D SENSOR_VL53L1X_senddelaymax=1000*30
     -D SENSOR_VL53L1X_readdelay=250
+
+
+    -D SENSOR_SHT31
+    -D SENSOR_SHT31_temperature_minchange=0.3
+    -D SENSOR_SHT31_temperature_senddelaymax=1000*60*60
+    -D SENSOR_SHT31_humidity_minchange=1.0
+    -D SENSOR_SHT31_humidity_senddelaymax=1000*60*60
+    
     
 
 lib_deps =
@@ -324,6 +332,8 @@ lib_deps =
     ArduinoJson@6.16.1
     marvinroger/Homie @ ^3.0.1
     pololu/VL53L1X @ ^1.3.0
+    adafruit/Adafruit SHT31 Library@^2.2.0
+    SPI
     
 
 #3D Printer