Recently, I got a Raspberry Pi, and as soon as I received it, I immediately arranged a case for it.
Let me record some processes for installing the Raspberry Pi system.
Raspberry Pi 4B, 8G.
1: SOC Chip
The Raspberry Pi uses the Broadcom (BCM2711) chip as the SOC chip, which integrates CPU, GPU, DSP, and SDRAM memory. The CPU and GPU share memory, and the memory ratio can be manually adjusted in the system.
2: Ethernet Interface
The Ethernet interface of the Raspberry Pi is realized through the USB bus, and data is transmitted via the USB bus. Most models of Raspberry Pi provide an Ethernet interface.
3: USB Interface
The Universal Serial Bus (USB) interface is the most common interface on computers, used to connect devices such as keyboards, mice, USB drives, and wireless network cards. When the number of USB interfaces is insufficient, a USB hub can be used to increase the number of USB interfaces.
4: HDMI Interface
The High Definition Multimedia Interface (HDMI) is a fully digital video and audio transmission interface used to transmit uncompressed audio and video signals. By connecting it to a monitor (or TV) equipped with an HDMI interface, the content of the Raspberry Pi can be displayed. The HDMI interface can transmit both video and audio signals simultaneously, so there is no need to connect speakers to the audio interface of the Raspberry Pi. If audio needs to be played through the audio interface, the operating system configuration needs to be modified accordingly.
5: Audio and Composite Video Interface
The audio interface (3.5mm headphone jack) can be used to play audio through standard 3.5mm headphone jack speakers or headphones when HDMI is not used. This interface also integrates a composite video interface, providing composite audio and video output functionality, generally used to connect older models of televisions, which are now rarely used.
6: DSI Display Interface
An LCD display can be connected to the Raspberry Pi, typically used for embedded product development.
7: CSI Camera Interface
The CSI interface allows a CSI camera to be connected to the Raspberry Pi via a ribbon cable, enabling easy video recording and image capture. Compared to USB cameras, this camera module performs better.
8: General Purpose Input Output (GPIO)
The GPIO interface is designed on the Raspberry Pi motherboard as a slot with two rows of pins. GPIO can be used to connect various peripheral electronic devices and sensors, controlling or monitoring these devices through input/output level signals.
9: SD Card Slot
The SD card slot is located on the back of the Raspberry Pi motherboard. SD/MicroSD cards are essential storage components for the Raspberry Pi, used to install the operating system and store data, with a capacity of at least 2GB. For a better user experience, it is recommended to equip your Raspberry Pi with a high-speed (Class 10 or higher) SD card of larger capacity (16GB or more).
10: Micro USB Power Interface
The Micro USB power interface is one of the primary power supply methods for the Raspberry Pi, with a rated voltage of 5V. The standard current requirements vary slightly between different versions of the Raspberry Pi; for example, the 1B model only requires 700mA, while the 3B+ model requires 2.5A. Many Android phone chargers can provide the necessary voltage and current for the Raspberry Pi. The current demand of the Raspberry Pi also depends on the external devices connected; it is recommended to calculate the appropriate current (power) supply for the Raspberry Pi in advance, and when the power of external devices is large, an independent power supply should be used to power those external devices.
11: WiFi and Bluetooth Module
The WiFi feature allows the Raspberry Pi to connect wirelessly to a computer network for interconnectivity, while the Bluetooth feature enables the Raspberry Pi to connect with Bluetooth-enabled devices (such as mice, keyboards, game controllers, etc.). Currently, only the 3B, 3B+, and Zero W models of Raspberry Pi come with built-in WiFi and Bluetooth functions (both integrated on one chip). For other models, you can achieve this by using an external USB WiFi (Bluetooth) adapter.
12: Power Over Ethernet (PoE) Interface
Power Over Ethernet (PoE) refers to a technology that transmits power over Ethernet. The Raspberry Pi 3B+ model has added a PoE option on top of the existing Micro USB and GPIO power supply methods, allowing users to power the Raspberry Pi using an Ethernet cable without needing additional power supplies, providing great convenience for certain application scenarios.
Since I did not buy a monitor, I chose to use the official burning software for flashing.
https://www.raspberrypi.com/software/
After downloading, double-click to start the installation, select the system and external USB drive.
Since there is no monitor, additional configuration is needed for SSH connection.
Finally, wait for the USB drive to be written.
The flashing is complete.
At this point, insert the SD card into the Raspberry Pi, then connect the power supply to the Raspberry Pi (the red light is on, and the green light is flashing) to connect to the Raspberry Pi via SSH.
Default port 22, enter the account password set earlier, along with the host name, to connect.
Note: The 7-inch display has not arrived yet; I will continue to tinker with it once it arrives.