diff --git a/WPDigitalizer/MQ3/Alcohol.csv b/WPDigitalizer/MQ3/Alcohol.csv
new file mode 100644
index 0000000..1a87832
--- /dev/null
+++ b/WPDigitalizer/MQ3/Alcohol.csv
@@ -0,0 +1,10 @@
+0,10353670498698248; 2,3006052433419897
+0,21669508284625513; 1,5283067326587703
+0,4121870467079977; 0,9849655764983776
+1,0353670498698249; 0,5373573058775191
+1,62674977267572; 0,3969028437065575
+2,533807310942618; 0,2931603713568166
+4,086210681445435; 0,20691380811147922
+6,147226923260454; 0,16237767391887242
+8,047488733750896; 0,12937254012807994
+10,087268592871308; 0,11635618505359083
diff --git a/WPDigitalizer/MQ3/Benzine.csv b/WPDigitalizer/MQ3/Benzine.csv
new file mode 100644
index 0000000..bcc17eb
--- /dev/null
+++ b/WPDigitalizer/MQ3/Benzine.csv
@@ -0,0 +1,10 @@
+0,10264097167012301; 4,153565396068835
+0,21482037565589762; 3,2105463740271127
+0,40862106814454346; 2,597010372492914
+1,02640971670123; 1,7782794100389265
+1,640946189037232; 1,4826977604563574
+2,5118864315095824; 1,2551169959105486
+4,050859401456971; 1,030760801977862
+6,147226923260454; 0,941204967268068
+7,977867010935023; 0,8337822234717909
+9,913486399149756; 0,7729615566100769
diff --git a/WPDigitalizer/MQ3/CH4.csv b/WPDigitalizer/MQ3/CH4.csv
new file mode 100644
index 0000000..a92d6ed
--- /dev/null
+++ b/WPDigitalizer/MQ3/CH4.csv
@@ -0,0 +1,10 @@
+9,913486399149756; 39,09356382652744
+7,9088476107129795; 39,69028437065577
+6,147226923260454; 40,29611320200408
+4,086210681445435; 41,53565396068835
+2,5118864315095824; 42,16965034285831
+1,6552664955267127; 42,16965034285831
+1,0175298766472782; 44,13029616837808
+0,4121870467079977; 45,48777947003787
+0,21669508284625513; 49,066996389388365
+0,10175298766472783; 49,066996389388365
diff --git a/WPDigitalizer/MQ3/CO.csv b/WPDigitalizer/MQ3/CO.csv
new file mode 100644
index 0000000..8e78ae5
--- /dev/null
+++ b/WPDigitalizer/MQ3/CO.csv
@@ -0,0 +1,7 @@
+0,10175298766472783; 50,57633654897071
+0,21482037565589762; 46,1821007306166
+0,4121870467079977; 42,16965034285831
+1,02640971670123; 34,63168991269758
+6,20087290762581; 20,38029782919976
+7,977867010935023; 18,05422902555477
+9,913486399149756; 15,99364192019675
diff --git a/WPDigitalizer/MQ3/Hexane.csv b/WPDigitalizer/MQ3/Hexane.csv
new file mode 100644
index 0000000..2268966
--- /dev/null
+++ b/WPDigitalizer/MQ3/Hexane.csv
@@ -0,0 +1,7 @@
+0,10353670498698248; 52,1321052223192
+0,21482037565589762; 38,50581463177166
+0,4050859401456971; 31,14734638595688
+1,0175298766472782; 23,006052433419896
+6,147226923260454; 12,551169959105493
+7,977867010935023; 10,951501934480216
+10; 10,152639075520527
diff --git a/WPDigitalizer/MQ3/LPG.csv b/WPDigitalizer/MQ3/LPG.csv
new file mode 100644
index 0000000..77b2895
--- /dev/null
+++ b/WPDigitalizer/MQ3/LPG.csv
@@ -0,0 +1,7 @@
+0,10444025524245701; 51,3483290743756
+0,21482037565589762; 42,813323987194025
+0,40862106814454346; 36,24186400012689
+1,0353670498698249; 29,76351441631324
+6,147226923260454; 15,753186734235184
+7,977867010935023; 13,74541620871335
+9,913486399149756; 13,134727062036905
diff --git a/WPDigitalizer/MQ3/MQ3_HANWEI.png b/WPDigitalizer/MQ3/MQ3_HANWEI.png
new file mode 100644
index 0000000..bb67e76
Binary files /dev/null and b/WPDigitalizer/MQ3/MQ3_HANWEI.png differ
diff --git a/examples/Alcoholimeter/Alcoholimeter.ino b/examples/Alcoholimeter/Alcoholimeter.ino
index 99efdf2..19c9db7 100644
--- a/examples/Alcoholimeter/Alcoholimeter.ino
+++ b/examples/Alcoholimeter/Alcoholimeter.ino
@@ -40,7 +40,7 @@ void setup() {
   Serial.println(MQ3.getR0());
   Serial.print("R0 clean air: ");
   Serial.println(RoCleanAir);
-  MQ3.setR0(RoCleanAir);
+  //MQ3.setR0(RoCleanAir);
 }
 
 void loop() {