ALLNET Rock Pi S - 256 MB with BT and WiFi

The ALLNET Rock Pi S is an ultra-compact single board computer designed for headless IoT and embedded applications. Powered by the Rockchip RK3308 quad-core Cortex-A35 processor and equipped with 256MB DDR3L RAM, it offers efficient performance for lightweight tasks. Built-in Wi-Fi 802.11 b/g/n and Bluetooth 4.0 provide wireless connectivity, while a 10/100Mbps Ethernet port ensures reliable wired networking. The board features a USB 2.0 Host port, USB-C OTG for power and data, a microSD card slot, and an eMMC module connector for storage expansion. A 26-pin GPIO header supports I2C, SPI, UART, PWM, and I2S interfaces, making it ideal for custom hardware projects. With support for multiple operating systems including Debian, Ubuntu, Armbian, OpenWrt, and Buildroot, the Rock Pi S offers flexibility for developers and makers.

Advantages

Compact and energy-efficient design perfect for embedded systems. Integrated Wi-Fi and Bluetooth eliminate the need for external adapters. Rich GPIO and interface options enable diverse project possibilities. Wide operating temperature range (-20°C to 80°C) suits industrial environments.

Suitable for

• IoT gateways and smart home controllers
• Network-attached storage (NAS) and media servers
• Voice assistant devices with VAD support
• Educational projects and prototyping

Key specifications

• SoC: Rockchip RK3308, Quad-core ARM Cortex-A35
• RAM: 256MB DDR3L
• Wireless: Wi-Fi 802.11 b/g/n (2.4GHz), Bluetooth 4.0
• Ethernet: 10/100Mbps via USB 2.0 to Ethernet chip
• USB: 1x USB 2.0 Host (Type-A), 1x USB 2.0 OTG (Type-C)
• Storage: MicroSD card slot, eMMC module connector
• GPIO: 26-pin header (GPIO, I2C, SPI, UART, PWM, I2S)
• Power: USB-C 5V DC
• OS Support: Debian, Ubuntu, Armbian, OpenWrt, Buildroot

Recommendations

For optimal performance, use a high-quality microSD card (Class 10 or UHS-I) and a stable 5V/2A power supply. The board is designed for headless operation; no video output is available.