Simple code for multiple sensor test using K64f

Dependencies:   mbed MQ2 FXOS8700Q DHT TextLCD ESP8266

Revision:
5:a981584597fb
diff -r aa3e25ccc05d -r a981584597fb MQ2.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MQ2.lib	Thu Mar 25 10:44:23 2021 +0000
@@ -0,0 +1,1 @@
+https://mbed.org/users/azazeal88/code/MQ2/#c0ebeb4b47b6