Added sample code for alternative temperature measure and added method in README file.

README.md

@@ -3,3 +3,31 @@
 This project is a uses the AdaFruit libraries for sensing temperature using DHT11 sensor and a Raspberry Pi.
 
 ---
+
+
+## Alternative method
+
+> [!NOTE]
+> This alternative method uses the `DHT11` python library for reading the sensor data.
+> This is a pure Python library for reading DHT11 sensor on Raspberry Pi.
+
+1. Install prerequisites:
+```shell
+sudo apt update &&\
+sudo apt upgrade -y &&\
+sudo apt install python3 python3-pip -y
+
+```
+
+2. Setup a virtual environment & install the library:
+```shell
+mkdir /home/$(whoami)/temp-sensor
+cd /home/$(whoami)/temp-sensor
+python3 -m venv .
+source bin/activate
+pip install dht11 setuptools RPi.GPIO
+```
+
+3. Run the code [alt-temp.py](https://git.kska.io/notkshitij/DHT11/src/branch/main/alt-temp.py)
+
+---

alt-temp.py

@@ -0,0 +1,21 @@
+# NOTE: GPIO PIN 16 used
+
+import RPi.GPIO as GPIO
+import dht11
+
+# initialize GPIO
+GPIO.setwarnings(False)
+GPIO.setmode(GPIO.BCM)
+GPIO.cleanup()
+
+# read data using pin 16
+instance = dht11.DHT11(pin = 16)
+result = instance.read()
+
+if result.is_valid():
+    print("Temperature: %-3.1f C" % result.temperature)
+    print("Humidity: %-3.1f %%" % result.humidity)
+else:
+    print("Error: %d" % result.error_code)
+
+GPIO.cleanup()