diff --git a/Practical/Connections.md b/Practical/Connections.md
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+# 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
+
+---
diff --git a/README.md b/README.md
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 > 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/)