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Raspberry Pi Zero 2 W with Headers

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Dimensions

65mm x 30mm x 5mm

Weight

12g

Operating Temperature

0C to 50C

Power Consumption

<2.5W

Input Power

5V, 1A

Applications

The Raspberry Pi Zero 2 W with Headers is an ideal choice for a wide range of IoT projects, including

Robotics and automation

Home automation and security systems

Wearable devices and IoT gadgets

Prototyping and proof-of-concept development

Embedded systems and industrial control systems

Development Tools and Resources

The Raspberry Pi Zero 2 W with Headers is supported by a wide range of development tools and resources, including

Raspberry Pi OS and related documentation

Official Raspberry Pi tutorials and guides

Community-driven forums and discussion groups

Extensive libraries and APIs for programming languages like Python, C++, and Java

Conclusion

The Raspberry Pi Zero 2 W with Headers is a powerful, feature-rich, and highly affordable SBC, making it an ideal choice for IoT enthusiasts, hobbyists, and professionals. Its compact size, low power consumption, and extensive range of features make it suitable for a wide range of applications, from simple gadgets to complex systems.

Pin Configuration

  • Raspberry Pi Zero 2 W with Headers Pinout
  • The Raspberry Pi Zero 2 W with Headers is a compact, low-cost, and highly capable single-board computer designed for IoT and embedded systems projects. It features a 40-pin GPIO header, which provides access to various interfaces and peripherals. Here's a detailed explanation of each pin, organized point by point:
  • GPIO Pins
  • 1. Pin 1: 3V3 - 3.3V power supply pin (maximum current: 50mA)
  • 2. Pin 2: 5V - 5V power supply pin (maximum current: 1A)
  • 3. Pin 3: GPIO2 - General-purpose input/output pin (can be used as I2C clock signal)
  • 4. Pin 4: 5V - 5V power supply pin (maximum current: 1A)
  • 5. Pin 5: GPIO3 - General-purpose input/output pin (can be used as I2C data signal)
  • 6. Pin 6: GND - Ground pin
  • 7. Pin 7: GPIO4 - General-purpose input/output pin
  • 8. Pin 8: TXD - UART transmission pin ( Serial communication)
  • 9. Pin 9: GND - Ground pin
  • 10. Pin 10: RXD - UART reception pin (Serial communication)
  • 11. Pin 11: GPIO17 - General-purpose input/output pin
  • 12. Pin 12: GPIO18 - General-purpose input/output pin (PWM capable)
  • 13. Pin 13: GPIO21 - General-purpose input/output pin
  • 14. Pin 14: GND - Ground pin
  • 15. Pin 15: GPIO22 - General-purpose input/output pin
  • 16. Pin 16: GPIO23 - General-purpose input/output pin
  • 17. Pin 17: 3V3 - 3.3V power supply pin (maximum current: 50mA)
  • 18. Pin 18: GPIO24 - General-purpose input/output pin
  • 19. Pin 19: GPIO10 - General-purpose input/output pin (SPI MOSI signal)
  • 20. Pin 20: GND - Ground pin
  • SPI Interface
  • 21. Pin 21: GPIO9 - General-purpose input/output pin (SPI clock signal)
  • 22. Pin 22: GPIO25 - General-purpose input/output pin (SPI chip select signal)
  • 23. Pin 23: GPIO11 - General-purpose input/output pin (SPI MISO signal)
  • 24. Pin 24: GPIO8 - General-purpose input/output pin (SPI chip select signal)
  • I2C Interface
  • 25. Pin 25: GPIO7 - General-purpose input/output pin (I2C clock signal)
  • 26. Pin 26: GPIO6 - General-purpose input/output pin (I2C data signal)
  • UART Interface
  • 27. Pin 27: GPIO1 - General-purpose input/output pin (UART transmission signal)
  • 28. Pin 28: GPIO0 - General-purpose input/output pin (UART reception signal)
  • HDMI and Power
  • 29. Pin 29: HDMI_DP2 - HDMI data pin 2
  • 30. Pin 30: HDMI_DP3 - HDMI data pin 3
  • 31. Pin 31: HDMI_DP0 - HDMI data pin 0
  • 32. Pin 32: HDMI_DP1 - HDMI data pin 1
  • 33. Pin 33: HDMI_CEC - HDMI Consumer Electronics Control signal
  • 34. Pin 34: GND - Ground pin
  • 35. Pin 35: HDMI_SDA - HDMI I2C data signal
  • 36. Pin 36: HDMI_SCL - HDMI I2C clock signal
  • 37. Pin 37: RUN - Run/debug mode pin (connect to GND for normal operation)
  • 38. Pin 38: GND - Ground pin
  • 39. Pin 39: 1V8 - 1.8V power supply pin (maximum current: 50mA)
  • 40. Pin 40: ID_SD - I2C identification signal (used for peripherals)
  • Connection Structure:
  • When connecting pins, make sure to use the correct voltage levels and follow the recommended current limits to avoid damaging the Raspberry Pi Zero 2 W.
  • Use a breadboard or PCB with a suitable layout to connect components and peripherals.
  • Connect power supply pins (3V3, 5V, and GND) to a suitable power source, taking care not to exceed the maximum current ratings.
  • Use jumper wires or suitable connectors to connect GPIO pins to peripherals, such as sensors, actuators, or communication modules.
  • Ensure correct pin numbering and orientation when connecting to peripherals or other components.
  • Use a level shifter or voltage regulator if necessary to match the voltage requirements of connected peripherals.
  • Remember to consult the official Raspberry Pi documentation and datasheets for specific guidelines on using the Raspberry Pi Zero 2 W with Headers.

Code Examples

Raspberry Pi Zero 2 W with Headers Documentation
Overview
The Raspberry Pi Zero 2 W with Headers is a compact, low-cost, and highly capable single-board computer (SBC) designed for IoT, robotics, and embedded systems applications. This version comes with pre-soldered headers, making it easy to connect peripherals and sensors. The Raspberry Pi Zero 2 W is built around the Broadcom BCM2710A1 system-on-chip (SoC), which features a quad-core Cortex-A53 CPU, dual-band 802.11b/g/n wireless networking, and Bluetooth 4.2.
Specifications
Processor: Broadcom BCM2710A1 quad-core Cortex-A53 CPU
 Clock Speed: 1 GHz
 RAM: 512 MB
 Storage: MicroSD card slot
 Wireless: Dual-band 802.11b/g/n Wi-Fi, Bluetooth 4.2
 Interfaces: HDMI, USB 2.0, Micro-USB, CSI camera interface, 40-pin GPIO header
 Power: Micro-USB, supports USB OTG
 Operating System: Raspberry Pi OS (based on Linux)
Code Examples
### Example 1: GPIO Control using Python
In this example, we will use the Raspberry Pi Zero 2 W to control an LED connected to one of the GPIO pins.
Hardware Requirements
Raspberry Pi Zero 2 W with Headers
 Breadboard
 LED
 1 k resistor
 Jumper wires
Software Requirements
Raspberry Pi OS (latest version)
 Python 3.x
Code
```python
import RPi.GPIO as GPIO
import time
# Set up GPIO mode
GPIO.setmode(GPIO.BCM)
# Set up pin 17 as an output
GPIO.setup(17, GPIO.OUT)
try:
    while True:
        # Turn on the LED
        GPIO.output(17, GPIO.HIGH)
        time.sleep(1)
        # Turn off the LED
        GPIO.output(17, GPIO.LOW)
        time.sleep(1)
except KeyboardInterrupt:
    # Clean up GPIO on exit
    GPIO.cleanup()
```
Explanation
This code uses the RPi.GPIO library to control the GPIO pin 17, which is connected to the LED. The `GPIO.setmode(GPIO.BCM)` function sets the GPIO mode to Broadcom numbering. The `GPIO.setup(17, GPIO.OUT)` function sets pin 17 as an output. The `GPIO.output(17, GPIO.HIGH)` and `GPIO.output(17, GPIO.LOW)` functions turn the LED on and off, respectively. The `time.sleep(1)` function introduces a 1-second delay between each state change.
### Example 2: Wi-Fi Connectivity using Python
In this example, we will use the Raspberry Pi Zero 2 W to connect to a Wi-Fi network and retrieve a web page using Python.
Hardware Requirements
Raspberry Pi Zero 2 W with Headers
 Wi-Fi network
 Internet connection
Software Requirements
Raspberry Pi OS (latest version)
 Python 3.x
 `requests` library (install using `pip install requests`)
Code
```python
import requests
# Set up Wi-Fi connection
ssid = 'your_wifi_ssid'
password = 'your_wifi_password'
# Connect to Wi-Fi
print('Connecting to Wi-Fi...')
import subprocess
subprocess.run(['sudo', 'iwconfig', 'wlan0', 'essid', ssid])
subprocess.run(['sudo', 'iwconfig', 'wlan0', 'key', password])
# Check Wi-Fi connection
print('Checking Wi-Fi connection...')
import subprocess
result = subprocess.run(['sudo', 'iwconfig', 'wlan0', 'link'])
if result.returncode == 0:
    print('Wi-Fi connected!')
# Retrieve a web page
print('Retrieving a web page...')
response = requests.get('https://www.example.com')
print(response.text)
```
Explanation
This code uses the `requests` library to connect to a Wi-Fi network and retrieve a web page. The `subprocess` module is used to run shell commands to configure the Wi-Fi interface. The `iwconfig` command is used to set the Wi-Fi SSID and password. The `link` command is used to check the Wi-Fi connection status. Finally, the `requests.get()` function is used to retrieve the web page.
Note: Replace `your_wifi_ssid` and `your_wifi_password` with your actual Wi-Fi credentials.
These examples demonstrate the versatility and ease of use of the Raspberry Pi Zero 2 W with Headers in various IoT applications.