Surface Mount Packaged IoT Computer
The Onion Omega2S IoT Computer Modules are designed for applications that require drop-in connectivity and computing. The 34x20x2.8 mm package features a CPU, memory, flash storage, and a WiFi radio. It runs a Linux Operating System and is FCC certified, making it a small but powerful solution for IoT devices.
- Drop-in WiFi-enabled Linux compute module for IoT applications
- Dual mode 2.4 GHz 802.11 b/g/n Wi-Fi - simultaneously host a WiFi access point and connect to existing WiFi networks
- On-board U.FL connector for external antenna
- CPU, memory, and flash storage are built-in
- Runs OpenWRT Linux operating system out of the box
- Features USB, ethernet, MicroSD, 2x UARTs, I2C, SPI, GPIOs interfaces
- FCC and CE certified
Send me the technical document package
The Onion Omega2S is a Wi-Fi enabled, Linux compute module, designed specifically for IoT applications. It provides a drop-in, low-power solution ideal for building IoT hubs and devices.
The module measures 34x20x2.8 mm and features a MIPS 24KEc processor running at 580 MHz, built-in DDR2 DRAM, flash storage, and a 2.4 GHz 802.11b/g/n Wi-Fi radio. It supports a wide variety of I/O protocols, with 42 pins available to the developer. The module is self-contained and only requires a power supply and an external WiFi antenna to operate.
By virtue of the Linux operating system, developers can create their own applications using a programming language of their choice, and make use of existing network stacks and a rich set of software packages to implement their desired software functionality.
Highlights on the software and operating system:
- The operating system is based on the OpenWRT Linux distribution
- Support for modern programming languages: Python (2.7 and 3.6), NodeJS
(8.10), GoLang, C, C++, and others
- Support for modern programming languages: Python (2.7 and 3.6), NodeJS
- The default device operating system image includes:
- Onion’s enhanced WiFi driver
- A package manager (opkg)
- A lightweight web server (uhttpd) and an extendable Remote Procedure Call
daemon (RPCD and ubus) - Utilities to control the GPIOs (gpioctl, fast-gpio) and pin multiplexing
(omega2-ctrl) - The sysfs interface for programmatic control of the hardware interfaces
- OnionOS, a web-based, graphical user interface for the Omega2 family
Modules
| Omega2S (OM-O2S) | RAM: 64MB, Flash: 16MB, Packaging: SMT |
| Omega2S+ (OM-O2SP) | RAM: 128MB, Flash: 32MB, Packaging: SMT |
For Development Kit check out Omega2S Development Kit
CPU
| Chipset | MT7688AN |
| Architecture | MIPS24KEc |
| Clock Speed | 580MHz |
Memory
| Flash | 16MB (OM-O2S) or 32MB (OM-O2SP) |
| DDR2 DRAM | 64MB (OM-O2S) or 128MB (OM-O2SP) |
WIFI
| WiFi Protocol | WEP64/128, AES, WPA, WPA2, WAP |
| Base Band | 2.4GHz |
| Data Rate | 150 Mbit/s |
| Channel Bandwidth | 20/40 MHz |
| Operation Mode | AP, STA, AP&STA |
| Encryption Mode | IEEE 802.11 b/g/n |
| Antenna Connector | U.FL connector for external antenna |
Interfaces
| Ethernet | 1 (10M/100M) |
| USB 2.0 Host | 1 |
| SDXC/eMMC | 1 |
| SPI | 1 |
| I2C | 1 |
| I2S | 1 |
| UART | 3 |
| PWM | 4 |
| GPIO | Up to 30 |
Power Supply Requirement
| DC Input | 3.3V |
| No-load Running Current | 200±40mA |
| Peak Current Requirement | 800mA |
Operation Conditions
| Ambient Temperature | -10°C ~ 55 °C |
| Storage Temperature | -20°C ~ 80° C |
| Operating Humidity | 10%-95%RH (Non-Condensing) |
| Storage Humidity | 5%-95%RH (Non-Condensing) |
Physical Specifications
| Dimensions | 34*20*2.8mm |
| Packaging | Surface mount |
Frequently asked questions
The Omega2S is guaranteed to be available until January 2028
Yes, the Omega2S and Omega2S+ modules have FCC, CE, and RoHS certification. Find the certification documents here: https://github.com/OnionIoT/Omega2/tree/master/Documents/Certification
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Shipped from Shenzhen, China FOB or DAP. See our volume ordering page for more details.
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