Raspberry Pi2 Model B

Overview

The Raspberry Pi 2 Model B (Part Number: SC0021) is a versatile single-board computer developed by Raspberry Pi, designed for embedded computing, education, and DIY electronics projects. Featuring an upgraded quad-core processor and expanded connectivity options, it delivers enhanced performance for applications ranging from home automation to industrial prototyping.

Key Features

• Broadcom BCM2837 SoC: Quad-core ARM Cortex-A53 CPU clocked at 900 MHz for improved multitasking.
• 1GB LPDDR2 SDRAM: Supports efficient memory handling for lightweight operating systems.
• 40-pin GPIO header: Includes dedicated pins for SPI, I2C, UART, and programmable GPIOs for hardware interfacing.
• Dual USB 2.0 ports: Enables peripheral connectivity for keyboards, storage, or sensors.
• MicroSD card slot: Serves as the primary storage medium for the operating system and data.
• HDMI output: Supports 1080p video resolution for display applications.
• Power input: 5V/2A via Micro-USB, with dedicated 3.3V, 5V, and 1.8V power rails for external components.

Technical Specifications

• Processor: Broadcom BCM2837 (4x ARM Cortex-A53 cores).
• Memory: 1GB LPDDR2 RAM.
• Storage: MicroSD (OS and data storage).
• Connectivity: 10/100 Ethernet, 4x USB 2.0, HDMI, 3.5mm audio jack.
• GPIO: 40 pins with support for I2C, SPI, UART, PWM, and general-purpose I/O.
• Power: 5V DC via Micro-USB (minimum 2A recommended).
• Dimensions: 85.6mm x 56.5mm.

Industry Applications

The Raspberry Pi 2 Model B is widely used in embedded systems, IoT prototyping, and educational environments. Its GPIO flexibility enables integration with sensors, relays, and displays, making it ideal for:

• Home Automation: Central control unit for smart lighting, security, and climate systems.
• Industrial Monitoring: Data acquisition and remote equipment diagnostics.
• Education: Hands-on learning tool for programming and electronics.
• Media Centers: Low-cost solution for streaming and playback via OS customization.

Power and GPIO Notes

The board features dedicated power pins (5V, 3.3V, 1.8V) and reserved ID_SD/ID_SC pins for HAT (Hardware Attached on Top) EEPROM compatibility. The GPIO header supports multiple protocols, including SPI_MOSI, SPI_MISO, SPI_SCLK, I2C (SDA1/SCL1), and UART (TXD0/RXD0). Unused ID EEPROM pins should remain disconnected if not in use.