Raspberry Pi 4 Model B 1GB RAM High-Performance SBC BCM2711

Specifications

• Processor: Broadcom BCM2711, Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz.
• Memory: 1GB LPDDR4-3200 SDRAM.
• Connectivity: 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless, Bluetooth 5.0, BLE.
• Ethernet: True Gigabit Ethernet.
• USB Ports: 2 USB 3.0 ports; 2 USB 2.0 ports.
• GPIO: Standard 40-pin GPIO header (fully backwards compatible).
• Video & Sound: 2 × micro-HDMI ports (up to 4kp60 supported); 2-lane MIPI DSI display port; 2-lane MIPI CSI camera port.
• Multimedia: H.265 (4kp60 decode), H264 (1080p60 decode, 1080p30 encode).
• Storage: Micro-SD card slot for loading operating system and data storage.
• Input Power: 5V DC via USB-C connector (minimum 3A*) or 5V DC via GPIO header.

Applications

• Industrial IoT Gateway: Use the Gigabit Ethernet and Quad-Core CPU to aggregate data from RS485/Modbus sensors and push to the cloud.
• Headless Linux Server: Perfect for Pi-Hole (network-wide ad blocking), OpenVPN servers, or lightweight MQTT brokers.
• Edge AI Inference: Deploy optimized TensorFlow Lite models for object detection where 1GB RAM is sufficient for the runtime.
• Thin Client/Kiosk: Drive dual 4K digital signage displays for retail or industrial dashboards.

Unlock New Capabilities

• Past Projects: If you have mastered the basic Arduino or ESP32 and found yourself limited by processing power or the lack of a full Linux OS, this is your next step.
• Feature Upgrade: Moving to the Pi 4 Model B unlocks True Gigabit Ethernet and USB 3.0, essential for high-speed data logging and external SSD support.
• Effort/Requirements: Intermediate. Requires an external microSD card (Class 10 recommended) and a reliable 5V 3A USB-C power supply.

Virtual Technician & Wiring

• ⚠️ Critical Voltage Warning: The Pi 4 uses 3.3V Logic for its GPIO. Applying 5V directly to any GPIO pin will cause permanent damage to the SoC. Always use logic level converters when interfacing with 5V sensors.
• Power Note: Ensure your power supply can provide a stable 3.0A. Under-voltage (represented by a lightning bolt icon in OS) can cause SD card corruption.
  Pin Mapping: * Pins 2 & 4: 5V Power Out
• Pin 6: Ground
• Pins 3 & 5: I2C (SDA/SCL)
• Pins 8 & 10: UART (TX/RX)

Package Includes:

• 1 x Raspberry Pi 4 Model B 1GB RAM High-Performance SBC BCM2711

Frequently Asked Questions (FAQ)

• Can I run the full Raspberry Pi OS Desktop on the 1GB version?
  Yes, but for the best experience with multiple browser tabs, the Lite (headless) version is recommended.
• Does the Pi 4 1GB support Power over Ethernet (PoE)?
  Yes, via the official PoE HAT or PoE+ HAT.
• What is the maximum resolution supported?
  It supports dual 4K displays at 30fps or a single 4K display at 60fps.
• Why is USB-C used for power?
  To support the higher 3A current requirement that micro-USB could not safely provide.
• Can I boot from a USB SSD?
  Yes, the Pi 4 supports USB boot out of the box with updated firmware.
• Does it need a heatsink?
  For heavy CPU loads, a heatsink or fan is highly recommended to prevent thermal throttling.
• Is the 1GB RAM sufficient for Home Assistant?
  Yes, for basic setups, but 2GB+ is recommended if running many Add-ons.
• What is the default username and password?
  As of recent OS updates, there is no default; you must set one during the imaging process.
• Can it run Windows 10/11?
  Not officially; it is designed for Linux-based operating systems.
• Does it have a hardware power button?
  No, but one can be added via the GPIO pins.
• Is the Bluetooth compatible with BLE devices?
  Yes, it supports Bluetooth 5.0 and BLE.
• Can I use my old Raspberry Pi 3 power supply?
  No, you need a USB-C supply and a higher current rating (3A).
• What are the dimensions of the board?
  85mm x 56mm.
• Does it support hardware encryption?
  Yes, the BCM2711 includes AES instructions.
• Can I use the camera from my Pi 3?
  Yes, the CSI connector is compatible.
• How many GPIO pins are available?
  There are 40 pins in total, with 26 available for general digital I/O.
• Does it support 5GHz Wi-Fi?
  Yes, it supports dual-band 2.4GHz and 5GHz Wi-Fi.
• Is this board suitable for 24/7 industrial use?
  Yes, when paired with high-quality power and cooling.
• What is the operating temperature range?
  0°C to 50°C (Ambient).
• Can I expand the RAM later?
  No, the RAM is soldered to the SoC and is not upgradeable.