Raspberry Pi 4B Official Case

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Material

High-quality, injection-molded plastic

Dimensions

92mm x 60mm x 30mm (3.62" x 2.36" x 1.18")

Weight

approximately 55g (1.94 oz)

Compatibility

Raspberry Pi 4B

Color

Black

Conclusion

The Raspberry Pi 4B Official Case is a high-quality, rugged, and durable enclosure that provides exceptional protection, heat dissipation, and aesthetics for the Raspberry Pi 4B. Its compact design, easy assembly, and access to all ports and connectors make it an excellent choice for a wide range of applications, from prototyping to industrial deployments.

Pin Configuration

Raspberry Pi 4B Official Case Pinout Guide
The Raspberry Pi 4B Official Case provides access to the GPIO (General Purpose Input/Output) pins, which allow users to connect various peripherals and devices to the Raspberry Pi 4B. Here is a comprehensive guide to the pins on the Raspberry Pi 4B Official Case:
GPIO Pins (40-pin Header)
1. 3.3V Power:
Pin 1: 3.3V power supply
Use: Powering external devices or sensors
2. 5V Power:
Pin 2: 5V power supply
Use: Powering external devices or sensors that require 5V
3. GPIO 2:
Pin 3: GPIO 2 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
4. GPIO 3:
Pin 4: GPIO 3 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
5. GND (Ground):
Pin 5: Ground connection
Use: Connecting devices to ground
6. GPIO 4:
Pin 6: GPIO 4 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
7. GPIO 5:
Pin 7: GPIO 5 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
8. GND (Ground):
Pin 8: Ground connection
Use: Connecting devices to ground
9. GPIO 6:
Pin 9: GPIO 6 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
10. GPIO 7:
Pin 10: GPIO 7 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
11. GPIO 8:
Pin 11: GPIO 8 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
12. GPIO 9:
Pin 12: GPIO 9 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
13. GND (Ground):
Pin 13: Ground connection
Use: Connecting devices to ground
14. GPIO 10:
Pin 14: GPIO 10 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
15. GPIO 11:
Pin 15: GPIO 11 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
16. GPIO 12:
Pin 16: GPIO 12 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
17. GPIO 13:
Pin 17: GPIO 13 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
18. GND (Ground):
Pin 18: Ground connection
Use: Connecting devices to ground
19. GPIO 14:
Pin 19: GPIO 14 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
20. GPIO 15:
Pin 20: GPIO 15 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
21. GPIO 16:
Pin 21: GPIO 16 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
22. GPIO 17:
Pin 22: GPIO 17 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
23. 3.3V Power:
Pin 23: 3.3V power supply
Use: Powering external devices or sensors
24. GPIO 18:
Pin 24: GPIO 18 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
25. GPIO 19:
Pin 25: GPIO 19 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
26. GND (Ground):
Pin 26: Ground connection
Use: Connecting devices to ground
27. GPIO 20:
Pin 27: GPIO 20 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
28. GPIO 21:
Pin 28: GPIO 21 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
29. GPIO 22:
Pin 29: GPIO 22 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
30. GPIO 23:
Pin 30: GPIO 23 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
31. GND (Ground):
Pin 31: Ground connection
Use: Connecting devices to ground
32. GPIO 24:
Pin 32: GPIO 24 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
33. GPIO 25:
Pin 33: GPIO 25 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
34. GPIO 26:
Pin 34: GPIO 26 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
35. GPIO 27:
Pin 35: GPIO 27 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
36. GND (Ground):
Pin 36: Ground connection
Use: Connecting devices to ground
37. GPIO 28:
Pin 37: GPIO 28 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
38. GPIO 29:
Pin 38: GPIO 29 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
39. GPIO 30:
Pin 39: GPIO 30 (General Purpose Input/Output)
Use: Can be used as an input or output for digital signals
40. GND (Ground):
Pin 40: Ground connection
Use: Connecting devices to ground
Additional Pins
1. HDMI:
Pins 1-19: HDMI connector
Use: Connecting displays or monitors
2. USB:
Pins 20-23: USB connector
Use: Connecting USB devices (e.g., keyboards, mice, storage devices)
3. Ethernet:
Pins 24-31: Ethernet connector
Use: Connecting to a local network or internet
4. Power:
Pins 32-35: Power connector
Use: Powering the Raspberry Pi 4B
5. Audio/Video:
Pins 36-39: Audio/Video connector
Use: Connecting audio or video devices (e.g., speakers, headphones, displays)
Connecting Pins
When connecting pins, ensure that:
GPIO pins are connected to devices or sensors that operate at 3.3V or 5V.
Ground pins are connected to the ground of the device or sensor.
Power pins are connected to a power source that matches the required voltage (3.3V or 5V).
HDMI, USB, Ethernet, and Audio/Video pins are connected to their respective devices.
Safety Precautions
Avoid connecting pins to devices or sensors that exceed the recommended voltage or current limits.
Ensure that devices or sensors are powered off before connecting or disconnecting pins.
Use appropriate connectors and cables to prevent damage to the Raspberry Pi 4B or connected devices.
By following this guide, you can safely and effectively connect devices and sensors to the Raspberry Pi 4B Official Case, unlocking its full potential for IoT projects and applications.

Code Examples

Raspberry Pi 4B Official Case Documentation

Overview

The Raspberry Pi 4B Official Case is a durable and compact enclosure designed specifically for the Raspberry Pi 4B single-board computer. The case provides adequate protection, ventilation, and accessibility to the Raspberry Pi's features, making it an ideal choice for a wide range of IoT projects.

Key Features

Designed for Raspberry Pi 4B
 Durable and compact design
 Adequate ventilation for heat dissipation
 Easy access to GPIO pins, camera, and display ports
 Secure screw-on design

Using the Raspberry Pi 4B Official Case in Various Contexts

### Example 1: Basic Setup with Raspbian OS

In this example, we'll demonstrate how to set up the Raspberry Pi 4B Official Case with the Raspbian OS, basic configuration, and a simple Python script to blink an LED.

Hardware Requirements

Raspberry Pi 4B
 Raspberry Pi 4B Official Case
 MicroSD card with Raspbian OS
 Breadboard and jumper wires
 LED and resistor

Software Requirements

Raspbian OS (latest version)
 Python 3.x (pre-installed on Raspbian)

Steps

1. Insert the microSD card with Raspbian OS into the Raspberry Pi 4B.
2. Assemble the Raspberry Pi 4B Official Case according to the official instructions.
3. Connect the LED and resistor to the breadboard and jumper wires.
4. Connect the jumper wires to GPIO pins 17 and GND on the Raspberry Pi 4B.

Code
```python
import RPi.GPIO as GPIO
import time

# Set up GPIO mode
GPIO.setmode(GPIO.BCM)

# Define the LED pin
LED_PIN = 17

# Set up the LED pin as an output
GPIO.setup(LED_PIN, GPIO.OUT)

while True:
    # Blink the LED
    GPIO.output(LED_PIN, GPIO.HIGH)
    time.sleep(1)
    GPIO.output(LED_PIN, GPIO.LOW)
    time.sleep(1)
```
Run the script using `python blink_led.py` (assuming the script is saved as `blink_led.py`).

### Example 2: Home Automation with GPIO and Python

In this example, we'll demonstrate how to use the Raspberry Pi 4B Official Case to control a relay module connected to a GPIO pin, allowing you to control a household appliance remotely.

Hardware Requirements

Raspberry Pi 4B
 Raspberry Pi 4B Official Case
 Relay module (e.g., SRD-05VDC-SL-C)
 Breadboard and jumper wires
 Household appliance (e.g., lamp)

Software Requirements

Raspbian OS (latest version)
 Python 3.x (pre-installed on Raspbian)
 `RPi.GPIO` library (pre-installed on Raspbian)

Steps

1. Connect the relay module to the breadboard and jumper wires.
2. Connect the jumper wires to GPIO pins 23 and GND on the Raspberry Pi 4B.
3. Connect the household appliance to the relay module.

Code
```python
import RPi.GPIO as GPIO
import time

# Set up GPIO mode
GPIO.setmode(GPIO.BCM)

# Define the relay pin
RELAY_PIN = 23

# Set up the relay pin as an output
GPIO.setup(RELAY_PIN, GPIO.OUT)

while True:
    # Turn the relay on
    GPIO.output(RELAY_PIN, GPIO.HIGH)
    print("Relay turned on")
    time.sleep(5)

# Turn the relay off
    GPIO.output(RELAY_PIN, GPIO.LOW)
    print("Relay turned off")
    time.sleep(5)
```
Run the script using `python relay_control.py` (assuming the script is saved as `relay_control.py`).

### Example 3: IoT Project with Wi-Fi and MQTT

In this example, we'll demonstrate how to use the Raspberry Pi 4B Official Case to create an IoT project that sends sensor data to an MQTT broker using Wi-Fi.

Hardware Requirements

Raspberry Pi 4B
 Raspberry Pi 4B Official Case
 Wi-Fi module (e.g., Edimax EW-7811Un)
 DHT11 temperature and humidity sensor
 Breadboard and jumper wires

Software Requirements

Raspbian OS (latest version)
 Python 3.x (pre-installed on Raspbian)
 `RPi.GPIO` library (pre-installed on Raspbian)
 `paho-mqtt` library (install using `pip install paho-mqtt`)

Steps

1. Connect the Wi-Fi module to the Raspberry Pi 4B.
2. Connect the DHT11 sensor to the breadboard and jumper wires.
3. Connect the jumper wires to GPIO pins 4 and GND on the Raspberry Pi 4B.

Code
```python
import RPi.GPIO as GPIO
import time
import dht11
import paho.mqtt.client as mqtt

# Set up GPIO mode
GPIO.setmode(GPIO.BCM)

# Define the DHT11 pin
DHT11_PIN = 4

# Set up the DHT11 sensor
dht11_sensor = dht11.DHT11(pin=DHT11_PIN)

# Set up the MQTT client
mqtt_client = mqtt.Client()
mqtt_client.connect("YOUR_MQTT_BROKER_IP", 1883)

while True:
    # Read temperature and humidity data
    temp, humid = dht11_sensor.read()

# Publish data to MQTT broker
    mqtt_client.publish("home/temperature", temp)
    mqtt_client.publish("home/humidity", humid)

# Wait for 10 seconds
    time.sleep(10)
```
Replace `YOUR_MQTT_BROKER_IP` with the IP address of your MQTT broker. Run the script using `python mqtt_publisher.py` (assuming the script is saved as `mqtt_publisher.py`).