Update readme

README.md

@@ -4,19 +4,36 @@ A MicroPython library for interfacing with an Aosong DHT12 temperature and humid
 
 This library focuses on using the I2C interface. The sensor also supports a 1-wire interface, available when pin 4 is connected to GND.
 
-#### Pinout
+![demo](docs/DHT12.jpg)
+
+#### Examples
+
+Basic measurement
 
 ```
-+---------+
-|xxxxxxxxx|
-|xxxxxxxxx|
-+---------+
-  | | | |
-  1 2 3 4
+import dht12
+from machine import I2C, Pin
+i2c = I2C(scl=Pin(5), sda=Pin(4))
+sensor = dht12.DHT12(i2c)
+sensor.measure()
+print(sensor.temperature())
+print(sensor.humidity())
 ```
 
-1=VDD, 2=SDA, 3=GND, 4=SCL
+Continuous measurement
 
-For full documentation see http://micropython-dht12.rtfd.io/.
+```
+import time
+import dht12
+from machine import I2C, Pin
+i2c = I2C(scl=Pin(5), sda=Pin(4))
+sensor = dht12.DHT12(i2c)
 
-![demo](docs/DHT12.jpg)
+while True:
+	sensor.measure()
+	print(sensor.temperature())
+	print(sensor.humidity())
+	time.sleep_ms(4000)
+```
+
+For full documentation see http://micropython-dht12.rtfd.io/.