Changed GPIO pins as per connections.md file.

Practical/Assignment-2/IoT - Codes-2.py

@@ -12,14 +12,14 @@ import RPi.GPIO as GPIO
 import time
 GPIO.setmode(GPIO.BCM)
 GPIO setwarnings(False)
-GPIO.setup(12,GPIO.OUT)
+GPIO.setup(16,GPIO.OUT)
 try:
   while True:
       print(“LED ON”)
-      GPIO.output(12,GPIO.HIGH)
+      GPIO.output(16,GPIO.HIGH)
       time.sleep(1)
       print(“LED OFF”)
-      GPIO.output(12,GPIO.LOW)
+      GPIO.output(16,GPIO.LOW)
       time.sleep(1)
 except:
   GPIO.cleanup()
@@ -31,17 +31,17 @@ import RPi.GPIO as GPIO
 import time
 GPIO.setmode(GPIO.BCM)
 GPIO setwarnings(False)
-GPIO.setup(12,GPIO.OUT)
+GPIO.setup(16,GPIO.OUT)
-GPIO.setup(19,GPIO.OUT)
+GPIO.setup(26,GPIO.OUT)
 try:
   while True:
       print(“LED ON”)
-      GPIO.output(12,GPIO.HIGH)
+      GPIO.output(16,GPIO.HIGH)
-      GPIO.output(19,GPIO.HIGH)
+      GPIO.output(26,GPIO.HIGH)
       time.sleep(1)
       print(“LED OFF”)
-      GPIO.output(12,GPIO.LOW)
+      GPIO.output(16,GPIO.LOW)
-      GPIO.output(19,GPIO.LOW)
+      GPIO.output(26,GPIO.LOW)
       time.sleep(1)
 except:
   GPIO.cleanup()
@@ -53,17 +53,17 @@ import RPi.GPIO as GPIO
 import time
 GPIO.setmode(GPIO.BCM)
 GPIO.setwarnings(False)
-GPIO.setup(12,GPIO.OUT)
+GPIO.setup(16,GPIO.OUT)
-GPIO.setup(19,GPIO.OUT)
+GPIO.setup(26,GPIO.OUT)
 try:
   while True:
     print("LED Buzzer ON")
-    GPIO.output(12,GPIO.HIGH)
+    GPIO.output(16,GPIO.HIGH)
-    GPIO.output(19,GPIO.HIGH)
+    GPIO.output(26,GPIO.HIGH)
     time.sleep(1)
     print("LED & Buzzer OFF")
-    GPIO.output(12,GPIO.LOW)
+    GPIO.output(16,GPIO.LOW)
-    GPIO.output(19,GPIO.LOW)
+    GPIO.output(26,GPIO.LOW)
     time.sleep(1)
 except:
   GPIO.cleanup()

Practical/Connections.md

@@ -0,0 +1,58 @@
+# IoT Connections
+
+[Refer Raspberry Pi pinout diagram](https://git.kska.io/sppu-te-comp-content/InternetOfThingsAndEmbeddedSystems/src/branch/main/Practical/Raspberry%20Pi%20%282+3+4+5%29%20GPIO%20Pinout.png)
+![Raspberry Pi PINOUT](https://git.kska.io/sppu-te-comp-content/InternetOfThingsAndEmbeddedSystems/raw/branch/main/Practical/Raspberry%20Pi%20%282+3+4+5%29%20GPIO%20Pinout.png)
+
+## Assignment 2 - LEDs and Buzzer
+
+> [!IMPORTANT]
+> Long terminal in LED is always positive, short terminal is always negative.
+
+### Single LED
+
+**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
+--- | --- | --- | ---
+LED | GPIO 16 (PIN 36) | GROUND (PIN 34) | N/A
+
+
+### Two LEDs
+
+**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
+--- | --- | --- | ---
+LED 1 | GPIO 16 (PIN 36) | GROUND (PIN 34) | N/A
+LED 2 | GPIO 26 (PIN 37) | GROUND (PIN 39) | N/A
+
+### Buzzer with one LED
+
+**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
+--- | --- | --- | ---
+Buzzer | GPIO 16 (PIN 36) | GROUND (PIN 34) | N/A
+LED | GPIO 26 (PIN 37) | GROUND (PIN 39) | N/A
+
+## Assignment 3 - IR Sensor
+
+**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
+--- | --- | --- | ---
+IR Sensor | 5V power (PIN 2) | GROUND (PIN 34) | GPIO 16 (PIN 36)
+LED | GPIO 26 (PIN 37) | GROUND (PIN 39) | N/A
+
+## Assignment 4 - DHT11 (Temperature sensor)
+
+**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
+--- | --- | --- | ---
+DHT11 | 5V power (PIN 2) | GROUND (PIN 34) | GPIO 16 (PIN 36)
+
+## Assignment 5 - Camera
+
+**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
+--- | --- | --- | ---
+Picamera | N/A | N/A | CSI port
+
+## Water level
+
+**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
+--- | --- | --- | ---
+Water sensor | 5V power (PIN 2) | GROUND (PIN 34) | GPIO 16 (PIN 36)
+LED | GPIO 26 (PIN 37) | GROUND (PIN 39) | N/A
+
+---

Practical/Water-level.py

@@ -14,14 +14,14 @@ GPIO.setmode(GPIO.BCM)
 GPIO.setwarnings(False)
 GPIO.cleanup()
 GPIO.setup(16, GPIO.IN)         # Set GPIO 16 as input for water level sensor signal
-GPIO.setup(6, GPIO.OUT)         # Set GPIO 6 as output for LED
+GPIO.setup(26, GPIO.OUT)         # Set GPIO 6 as output for LED
 
 try:
     while True:
         if (GPIO.input(16))
-            GPIO.output(6, True)    # Turn ON LED if water detected
+            GPIO.output(26, True)    # Turn ON LED if water detected
         else
-            GPIO.output(6, False)   # Keep LED OFF if no water detected
+            GPIO.output(26, False)   # Keep LED OFF if no water detected
 except KeyboardInterrupt:
     GPIO.cleanup()
     print("Program exited by user.")

README.md

@@ -13,6 +13,7 @@
 > These folders contain **handout**, **write-up** and **other content**.
 
 - [Raspberry Pi 2/3/4 GPIO Pinout](https://git.kska.io/sppu-te-comp-content/InternetOfThingsAndEmbeddedSystems/src/branch/main/Practical/Raspberry%20Pi%20%282+3+4+5%29%20GPIO%20Pinout.png)
+- [Refer this for all connections](https://git.kska.io/sppu-te-comp-content/InternetOfThingsAndEmbeddedSystems/src/branch/main/Practical/Connections.md)
 
 1. [Assignment-1](https://git.kska.io/sppu-te-comp-content/InternetOfThingsAndEmbeddedSystems/src/branch/main/Practical/Assignment-1/)
 2. [Assignment-2](https://git.kska.io/sppu-te-comp-content/InternetOfThingsAndEmbeddedSystems/src/branch/main/Practical/Assignment-2/)