Merge pull request #1658 from MatthewStephenson/si7020

Add Si7020

library/sensors.dcm

@@ -636,6 +636,12 @@ K digital temperature humidity sensor
 F https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/Humidity_Sensors/Sensirion_Humidity_Sensors_SHT1x_Datasheet_V5.pdf
 $ENDCMP
 #
+$CMP Si7020-A20
+D I2C Humidity and Temperature Sensor, DFN-6
+K I2C Humidity Temperature Sensor
+F https://www.silabs.com/documents/public/data-sheets/Si7020-A20.pdf
+$ENDCMP
+#
 $CMP TLV493D
 D Low power 3D magnetic sensor, I2C interface, SOT23-6 package
 K magnetic field i2c

library/sensors.lib

@@ -1830,6 +1830,28 @@ X VDD 4 -100 300 100 D 50 50 1 1 W
 ENDDRAW
 ENDDEF
 #
+# Si7020-A20
+#
+DEF Si7020-A20 U 0 20 Y Y 1 F N
+F0 "U" -200 300 50 H V C CNN
+F1 "Si7020-A20" -400 400 50 H V C CNN
+F2 "Housings_DFN_QFN:DFN-6-1EP_3x3mm_Pitch1mm" 0 -400 50 H I C CNN
+F3 "" -200 300 50 H I C CNN
+$FPLIST
+ DFN*1EP*3x3mm*Pitch1mm*
+$ENDFPLIST
+DRAW
+S -400 200 400 -200 0 1 10 f
+X SDA 1 -500 100 100 R 50 50 1 1 B
+X GND 2 -100 -300 100 U 50 50 1 1 W
+X NC 3 400 100 100 L 50 50 1 1 N N
+X NC 4 400 -100 100 L 50 50 1 1 N N
+X VDD 5 0 300 100 D 50 50 1 1 W
+X SCL 6 -500 -100 100 R 50 50 1 1 I
+X PAD 7 100 -300 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
 # TLV493D
 #
 DEF TLV493D U 0 40 Y Y 1 F N