Forlinx OK1126Bx-C SBC Features Rockchip RV1126B SoC and Raspberry Pi header

Forlinx Embedded has introduced the OK1126Bx-C, a new SBC designed for edge AI, embedded vision, and AIoT applications. Built around the ultra-compact FET1126Bx-C SoM, this development platform uses the Rockchip RV1126B and RV1126BJ processors to deliver up to 3 TOPS of AI performance in a ruggedized, industrial footprint.

We have previously worked on other SoMs and SBCs built around the Rockchip RV1126 and RV1126B SoCs, including the Graperain RV1126B SoM, the Luckfox Aura dev board, and Forlinx’s own FET1126Bx-S SoM. Compared to those and earlier solutions, the Forlinx carrier board introduces a 40-pin Raspberry Pi-compatible GPIO header for easier prototyping and hardware expansion.

Forlinx OK1126Bx-C SBC based on the Rockchip RV1126B/RV1126BJ SoC and FET1126Bx-C SoM.

Forlinx OK1126Bx-C specifications:

• SoM: Forlinx FET1126Bx-C (56 x 36 mm) via 3x 80-pin board-to-board connectors (0.5mm pitch)
• SoC:
  • Rockchip RV1126B quad-core Cortex-A53 processor @ 1.6 GHz or RV1126BJ @ 1.3 GHz
  • NPU: 3.0 TOPS (INT8)
  • GPU: 2D Graphics Engine (RGA) only; no 3D GPU
  • VPU:4K H.264/H.265 video decoding @ 30fps; 12M@30fps video encoding
  • ISP: Standard ISP up to 12M@20fps; AI ISP up to 8M@30fps
• Memory: 1GB, 2GB, or 4GB LPDDR4
• Storage: 8GB, 16GB, 32GB, or 64GB eMMC flash on SoM, MicroSD card slot on carrier board
• Display: 1x 4-lane MIPI DSI supporting capacitive touch screens, LCD header
• Camera: 2x MIPI CSI (4-lane) via FPC connectors
• Audio: 1x onboard electret microphone; header for external 4Ω/3.3W speaker via power amplifier
• Networking
  • Gigabit or 10/100M Ethernet RJ45 port
  • Note: The carrier board includes dual-band 802.11ac WiFi 5 and Bluetooth 4.2, but this version does not support them.
• USB: 1x USB 3.0 host port, 1x USB 2.0 host port, 1x USB Type-C OTG port (also used for UART debugging)
• Expansion:
  • 40-pin Raspberry Pi-compatible GPIO header exposing UART5, SPI1, I2C3, I2C4, and more
  • Headers for 7x ADC
• Misc: Reset, Boot, and Wake-up buttons; RTC with CR2032 battery
• Power
  • Supply: 5V DC
  • Consumption: 0.007W in Standby Mode with remote wake-up (Wi-Fi/4G) support
• Dimensions: Carrier board: 120 x 75 mm; SoM: 56 x 36 mm
• Temperature Range: -20°C to +85°C (RV1126B) or -40°C to +85°C (RV1126BJ)

Forlinx OK1126Bx-C block diagram showing the multimedia engines, video interfaces, memory, and connectivity options

Forlinx OK1126Bx-C SBC interface showing the Raspberry Pi-compatible 40-pin header, dual MIPI CSI, MIPI DSI, USB ports, Ethernet, ADC inputs, audio, and debug interfaces.

Forlinx provides a Board Support Package (BSP) running Linux 6.1.141 for the board, along with an OS image, testing demos, source code, and comprehensive hardware documentation, including datasheets, user guides, carrier board schematics, and PCB files. But to get those, you need to contact the company directly.

The OK1126Bx-C carrier board measures 120 x 75 mm and exposes most of the SoM’s interfaces, including a Gigabit Ethernet port, dual MIPI CSI camera inputs, MIPI DSI, and multiple USB ports. It also supports ultra-low-power standby (0.007W) with Always On Audio (AOA) and Always On Video (AOV) capabilities, making it well-suited for 24/7 battery-powered security systems and remote monitoring.

The Forlinx OK1126Bx-C SBC and FET1126Bx-C SoM are available now with lead times of typically 5 working days for samples and 6 weeks for bulk orders. You can find more information and inquire about pricing on the Forlinx product page.

Images used courtesy of Forlinx Embedded