Raspberry Pi 4 (2GB RAM)
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The Raspberry Pi 4 is a versatile single-board computer (SBC) that offers improved performance and capabilities over its predecessors. With 2GB of RAM, it is suitable for a wide range of applications, from basic computing tasks to advanced projects involving IoT, robotics, and media centers. The Raspberry Pi 4 features a powerful quad-core ARM Cortex-A72 processor, multiple USB ports, dual-display support, and enhanced connectivity options, making it a popular choice among hobbyists, educators, and professionals.
Key Features:
- Quad-core 64-bit ARM Cortex-A72 processor running at 1.5GHz
- 2GB LPDDR4 RAM
- Dual-band 802.11ac wireless LAN (Wi-Fi) and Bluetooth 5.0
- Gigabit Ethernet (via USB 3.0 chipset)
- 2 × USB 3.0 ports and 2 × USB 2.0 ports
- 2 × micro HDMI ports supporting up to 4K resolution
- CSI camera interface and DSI display interface
- 40-pin GPIO header for interfacing with sensors, displays, and other devices
- MicroSD card slot for operating system and data storage
- Compatibility with a wide range of operating systems, including Raspberry Pi OS (formerly Raspbian), Ubuntu, and others
- Processor: Broadcom BCM2711, Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
- RAM: 2GB LPDDR4 SDRAM
- Connectivity: Dual-band 802.11ac wireless LAN (Wi-Fi), Bluetooth 5.0, Gigabit Ethernet
- Video & Audio: 2 × micro HDMI ports (up to 4Kp60 supported), MIPI DSI display port, MIPI CSI camera port, 4-pole stereo audio and composite video port
- USB: 2 × USB 3.0 ports, 2 × USB 2.0 ports
- GPIO: 40-pin GPIO header
- Power Requirements: 5V DC via USB-C connector (minimum 3A)
- Storage: MicroSD card slot for operating system and data storage
- Operating Temperature: 0°C to 50°C
- Home automation and IoT projects
- Robotics and automation
- Media centers and retro gaming consoles
- Educational tools for learning programming and electronics
- DIY electronics projects and prototyping
- Server applications and cloud computing
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment