9.3: Pi 4 Overview
- Page ID
- 470290
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This next section will go over the hardware components of the Raspberry Pi 4. We have created a webpage for each component and the goal is sort of two fold. First, to let you know what that component is, and second, to give you a bearing on how it works. That is, although we all use computers everyday, many of us have no idea how they work, or what the hardware does. Much of this is beyond the scope of the course, and so there will be many external links for you to dive in, as you like.
Figure \(\PageIndex{1}\): Various ports on a Pi 4. (Belford cc -0.0)
Pi Hardware
- SOC (System on Chip)
- CPU (Central Processing Unit)
- GPU (Graphics Processing Unit)
- Cache memory
- RAM (Random Access Memory)
- micro SD Card (Non-Volatile Memory)
- LEDS
- Networking options
- Ethernet
- Radio Chip
- WiFi
- BlueTooth
- GPIO & Data Protocols
- 40 Pin GPIO
- UART (Universal Asnychronous Receiver-Transmitter)
- I2C (Inter-Integrated Circuit)
- SPI (Serial Peripheral Interface)
- Ports
- USB C (Power)
- USB 2 & 3
- AV Jack
- micro HDMI 2.0
- CSI (Camera Serial Interface)
- DSI (Display Serial Interface)