59 lines
2.0 KiB
Markdown
59 lines
2.0 KiB
Markdown
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# IoT Connections
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[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)
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## Assignment 2 - LEDs and Buzzer
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> [!IMPORTANT]
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> Long terminal in LED is always positive, short terminal is always negative.
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### Single LED
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**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
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--- | --- | --- | ---
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LED | GPIO 16 (PIN 36) | GROUND (PIN 34) | N/A
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### Two LEDs
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**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
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--- | --- | --- | ---
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LED 1 | GPIO 16 (PIN 36) | GROUND (PIN 34) | N/A
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LED 2 | GPIO 26 (PIN 37) | GROUND (PIN 39) | N/A
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### Buzzer with one LED
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**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
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--- | --- | --- | ---
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Buzzer | GPIO 16 (PIN 36) | GROUND (PIN 34) | N/A
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LED | GPIO 26 (PIN 37) | GROUND (PIN 39) | N/A
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## Assignment 3 - IR Sensor
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**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
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--- | --- | --- | ---
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IR Sensor | 5V power (PIN 2) | GROUND (PIN 34) | GPIO 16 (PIN 36)
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LED | GPIO 26 (PIN 37) | GROUND (PIN 39) | N/A
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## Assignment 4 - DHT11 (Temperature sensor)
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**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
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--- | --- | --- | ---
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DHT11 | 5V power (PIN 2) | GROUND (PIN 34) | GPIO 16 (PIN 36)
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## Assignment 5 - Camera
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**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
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--- | --- | --- | ---
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Picamera | N/A | N/A | CSI port
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## Water level
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**Device** | **Positive terminal** | **Negative terminal (Ground/GND)** | **Signal/Output**
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--- | --- | --- | ---
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Water sensor | 5V power (PIN 2) | GROUND (PIN 34) | GPIO 16 (PIN 36)
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LED | GPIO 26 (PIN 37) | GROUND (PIN 39) | N/A
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---
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