Overview
The Omega4 family is Onion's next Linux module line, aimed at higher performance and easier productization than the Omega2.
Draft content
Omega4 is under active development. Use this page as a working outline and confirm final values with release notes before committing them to a design.
Platform highlights
- RV1103B ARM Cortex-A7 SoC tuned for OpenWrt 24.09 on the Omega4 builds.
- Onboard 256 MB DDR and 256 MB SPI NAND for faster bring-up and image swaps.
- AIC8800D80 Wi-Fi/BLE combo for dual-band connectivity on-module.
- EVB with USB-C power, console access, Ethernet, and castellated/pin headers for rapid testing.
Key features
CPU
| Item | Value |
|---|---|
| Chipset | RV1103B |
| Architecture | Cortex-A7 + RISC-V |
| Clock Speed | 1.2 GHz |
Memory
| Item | Value |
|---|---|
| NAND Flash | 256 MB |
| DDR3L DRAM | 256 MB |
WiFi and Bluetooth
| Item | Value |
|---|---|
| Chipset | AIC8800D80 |
| WiFi Protocol | IEEE 802.11a/b/g/n/ac/ax |
| Band | 2.4 GHz / 5 GHz |
| Data Rate | Up to 400 Mbps |
| Channel Bandwidth | 20/40/80 MHz |
| Operation Mode | AP, STA, AP+STA |
| Encryption Mode | WEP/WPA/WPA2/WPA3-SAE Personal, MFP |
| Bluetooth Protocol | BT5.3 |
Interfaces
| Item | Value |
|---|---|
| Ethernet | 1 (10/100 Mbps) |
| USB 2.0 Host (OTG) | 1 |
| MIPI-CSI | 2-lane |
| MIC | 1 |
| Audio Line Out | 1 |
| GPIO (Pin Multiplexing) | up to 36 |
Power supply requirements
| Item | Value |
|---|---|
| DC Input | 5 V |
| No-load Running Current | 100 ± 20 mA |
| Peak Current Requirement | 1 A |
Operating conditions
| Item | Value |
|---|---|
| Operating Temperature | -20°C to 85°C |
| Ambient Temperature | -10°C to 55°C |
| Storage Temperature | -20°C to 80°C |
| Operating Humidity | 10% to 95% RH (non-condensing) |
| Storage Humidity | 5% to 95% RH (non-condensing) |
Physical specifications
| Item | Value |
|---|---|
| Dimensions | 38 x 23.8 x 2.8 mm |
| Packaging | Surface mount |
Software baseline
OpenWrt 24.09 with Onion feed; SDK and factory images forthcoming.
Hardware support status (preview)
Feature readiness will evolve as preview firmware drops. Track the first image that enables each block before basing designs or tests on it.
| Feature | Support | First FW with support |
|---|---|---|
| Wi-Fi 2.4GHz/5GHz | ✅ | v0.0.2 |
| Bluetooth 5.0 | ✅ | v0.0.2 |
| Ethernet (GMAC) | ✅ | v0.0.2 |
| USB 2.0 Host | ✅ | v0.0.5 |
| USB 2.0 Device (Gadget) | ✅ | v0.0.6 |
| USB OTG (Dual-role) | ✅ | v0.0.6 |
| SD card (SDMMC) | ✅ | v0.0.3 |
| I2C | ✅ | v0.0.7 |
| SPI | ✅ | v0.0.7 |
| PWM | ✅ | v0.0.4 |
| GPIO | ✅ | v0.0.3 |
| Audio Codec (internal) | Not yet supported | - |
| I2S/SAI audio interface | Not yet supported | - |
| MIPI CSI-2 camera input | ✅ | v0.0.9 |
| Video Encoder (VENC) | Not yet supported | - |
| NPU | Not yet supported | - |
| RISC coprocessor | ✅ | v0.0.8 |
| ADC (SARADC / TSADC) | Not yet supported | - |
| RTC | ✅ | v0.0.10 |