OM-O2P-EVAL - Omega2+ IoT Eval Board | Onion | Wi-Fi 4
部品番号: OM-O2P-EVAL ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $49 | $49.00 |
| 5 | $47.5 | $237.50 |
| 10 | $45 | $450.00 |
| 25 | $42.5 | $1,062.50 |
| 50 | $40 | $2,000.00 |
| 100 | $37.5 | $3,750.00 |
OM-O2P-EVAL 概要
An evaluation board (eval board or development kit) is a reference PCB produced by a module vendor that breaks out every signal of a system-on-module (SoM) into accessible headers and adds power regulation, USB, and user I/O so engineers can verify functionality with minimum hardware effort. In the embedded taxonomy, the OM-O2P-EVAL sits at the top of the stack: SoM -> evaluation board -> development platform -> IoT prototyping system. The Omega2+ itself is built around the MediaTek MT7688 SoC, which integrates a MIPS 24KEc CPU, 802.11 b/g/n radio, and peripheral controllers, making it a representative single-chip Wi-Fi 4 SoC for low-cost connected products.
Key features of the OM-O2P-EVAL include the bundled Omega2+ module (128 MB DDR2, 32 MB on-module flash), 2.4 GHz 802.11 b/g/n Wi-Fi 4 radio, USB 2.0 host/device ports, a Micro-USB power input, GPIO/SPI/I2C/UART headers, and a reset button. The kit is supported by the OnionOS Linux distribution and the Omega2 SDK, providing out-of-the-box firmware flashing and network onboarding. Because the radio subsystem and regulatory certification are inherited from the Omega2+ module, the eval board requires no separate FCC/IC/CE testing for the Wi-Fi portion when used in its stock configuration.
The architecture combines a single-chip Wi-Fi SoC (MT7688) with 16-bit DDR2 memory, hardware crypto engines, and a complete TCP/IP networking stack running on a Linux kernel. Performance is characterized by 580 MHz MIPS CPU clock, 128 MB RAM, and Wi-Fi throughput suitable for low-rate telemetry (typically a few Mbps in practice). Power consumption is dominated by the Wi-Fi radio and varies between ~150 mA (idle) and ~400 mA (active TX) at 3.3 V.
Typical applications include Wi-Fi sensor nodes, smart-home hubs, retrofit industrial telemetry, classroom IoT projects, and proof-of-concept connected products. The wide software support (Node.js, Python, C, mDNS, MQTT) makes it a flexible node for prototyping before porting firmware to custom hardware.
Design consideration: provide a stable 5 V / 1 A Micro-USB supply and avoid sharing that rail with noise-heavy motors; for production, migrate to a custom carrier that retains the Omega2+ SoM footprint to leverage the existing radio certification. This page synthesizes distributor inventory, drop-in alternatives, and engineering notes not found in a single manufacturer datasheet.
ドロップイン代替品: OM-O2P-EVAL — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: OM-O2P-EVAL （同一形状・フットプリント） — 相違点: Operating Voltage.
クイック比較ツール — 並列比較する代替部品を選択:
OM-O2-EVAL
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OM-O2P
✅ ドロップイン✓ 在庫あり
$20.14 / 個
データシートを見る →OM-O2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
OM-O2P-EVAL 仕様（メーカー公開）
| Product Type | IoT Evaluation / Development Board |
| Bundled Module | Onion Omega2+ (OM-O2P) |
| Wireless Standard | 802.11 b/g/n (Wi-Fi 4), 2.4 GHz |
| Host SoC | MediaTek MT7688 (MIPS 24KEc) |
| CPU Clock | 580 MHz |
| On-module RAM | 128 MB DDR2 |
| On-module Flash | 32 MB |
| USB Interface | USB 2.0 host + Micro-USB device/power |
| Operating Voltage | 5 V via Micro-USB |
| GPIO Voltage | 3.3 V logic |
| User I/O | GPIO, SPI, I2C, UART headers |
| 動作温度 | 0C to +70C (commercial) |
| 実装タイプ | Through-hole headers (breadboard-friendly) |
| Dimensions (approx.) | 49 mm x 35 mm carrier |
| RoHS ステータス | Compliant |
| Supported OS | OnionOS (Linux/OpenWrt-based) |
OM-O2P-EVAL インターフェースとコネクタ
OM-O2P-EVAL は、メーカーが公開している以下のインターフェースとコネクタを備えています: ワイヤレス, USB, GPIO。拡張ヘッダーのピン配置、コネクタのピン番号、電気的制限はメーカーのドキュメントで定義されています。
| ワイヤレス | 802.11 b/g/n (Wi-Fi 4), 2.4 GHz |
| USB | USB 2.0 host + Micro-USB device/power |
| GPIO | 3.3 V logic |
詳細は メーカー資料 をご参照ください（拡張ヘッダーのピン配置とコネクタのピン番号の詳細）。
電力・熱特性
| 動作温度 | 0C to +70C (commercial) |
メーカーが公開している OM-O2P-EVAL の電力入力および熱パラメータ。
主な用途
OM-O2P-EVAL の用途: 6 件s: Wi-Fi IoT Sensor Node, Smart Home Bridge / Hub, Retrofit Industrial Telemetry, Classroom IoT Education Platform, Proof-of-Concept Connected Product, Low-Cost Wireless Gateway for Sub-GHz Sensors.
Wi-Fi IoT Sensor Node
The OM-O2P-EVAL's 2.4 GHz 802.11 b/g/n (Wi-Fi 4) radio and Linux environment make it a strong fit for low-rate Wi-Fi sensor nodes that report temperature, humidity, or occupancy to a cloud broker. Per the Onion Omega2+ datasheet, the MT7688 SoC integrates a hardware crypto engine and WPA2 station mode, which lets a developer authenticate against an enterprise AP with a single command-line flag. The eval board exposes I2C and GPIO headers so an engineer can plug in a BME280 or similar sensor in minutes. The 128 MB of DDR2 in the bundled Omega2+ module comfortably runs Node.js or Python telemetry stacks, and a typical MQTT publish loop draws around 200 mA at 3.3 V.
おすすめ
Smart Home Bridge / Hub
For a smart-home bridge, the OM-O2P-EVAL offers enough compute headroom to run a home automation daemon (Home Assistant, openHAB, or a Node-RED flow) while serving as the Wi-Fi access point for sub-GHz or BLE peripherals. The MT7688 SoC handles the Wi-Fi association and NAT routing in software, and the carrier board's USB host port can attach a Z-Wave or Zigbee dongle for legacy device support. OnionOS includes avahi/mDNS, Mosquitto MQTT, and Python 3 out of the box, so a developer can spin up a working hub within an afternoon. Quiescent current sits near 150 mA, low enough for always-on operation.
おすすめ
Retrofit Industrial Telemetry
The OM-O2P-EVAL's small footprint (49 mm x 35 mm carrier) and on-board 802.11 n radio are well suited for retrofit industrial telemetry nodes that ride on top of existing equipment. Engineers can wire the GPIO/UART headers to a PLC or 4-20 mA sensor and push readings to a central SCADA gateway over MQTT. Per the MT7688 datasheet, the chip supports WPA2-Enterprise and 802.1X, which lets the node authenticate against industrial Wi-Fi infrastructure. The 580 MHz MIPS core is fast enough for Modbus TCP polling at sub-second rates, and the eval board's 0-70 C operating range covers most indoor industrial environments.
おすすめ
Classroom IoT Education Platform
For STEM classrooms and university IoT courses, the OM-O2P-EVAL is one of the cheapest Linux + Wi-Fi eval kits available, with a sub-$50 retail price and direct support for Python, JavaScript, and C tutorials. According to Onion's learning portal, students can flash the Omega2+ firmware, join a campus Wi-Fi network, and complete an MQTT publish-and-subscribe lab within a single 90-minute session. The breadboard-friendly headers and clearly labeled GPIO map reduce setup friction, and the eval board's Micro-USB power input works with standard phone chargers available in any classroom.
おすすめ
Proof-of-Concept Connected Product
When validating a connected-product idea, the OM-O2P-EVAL lets a hardware team demonstrate functionality within days instead of months. Because the bundled Omega2+ module is pre-certified for FCC, IC, and CE in the 2.4 GHz band, prototype demos can be performed in any geography without re-running radio compliance testing. Per the Onion design guide, the eval board's pin map exactly matches the Omega2+ SoM, so firmware developed on the kit can be carried over to a custom carrier with no software rework. The eval board also exposes USB host, making it easy to attach a camera or flash drive for media-centric prototypes.
おすすめ
Low-Cost Wireless Gateway for Sub-GHz Sensors
The OM-O2P-EVAL pairs naturally with a sub-GHz radio daughterboard (such as an SX1276 LoRa module) attached via SPI, creating a LoRa-to-Wi-Fi gateway for long-range sensors. Per the MT7688 datasheet, the SPI peripheral supports up to 40 MHz clock, which is fast enough to keep up with LoRa packet rates at SF7-SF12. The eval board's Linux userland lets the engineer run a packet forwarder (e.g., the LoRaWAN basics-station) directly on the Omega2+ module. Power draw peaks around 400 mA during simultaneous Wi-Fi TX and LoRa RX, which is still well within a 5 V / 1 A USB budget.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: OM-O2P-EVAL — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | OM-O2-EVAL | OM-O2P | OM-O2 |
|---|---|---|---|---|
| Brand | Onion Corporation | Onion Corporation | Onion Corporation | Onion Corporation |
| Package | Carrier PCB with 0.1" headers (breadboard-friendly) | Carrier PCB with 0.1" headers - same | Bare SoM (castellated) - headers not included | Bare SoM (castellated) - headers not included |
| Bundled Module | Omega2+ (OM-O2P) | Omega2 (OM-O2) | Omega2+ (OM-O2P) - bare | Omega2 (OM-O2) - bare |
| On-board RAM | 128 MB DDR2 | 64 MB DDR2 | 128 MB DDR2 | 64 MB DDR2 |
| On-board Flash | 32 MB | 16 MB | 32 MB | 16 MB |
| Wireless Standard | 802.11 b/g/n 2.4 GHz | 802.11 b/g/n 2.4 GHz - same | 802.11 b/g/n 2.4 GHz - same | 802.11 b/g/n 2.4 GHz - same |
| Host SoC | MediaTek MT7688 (MIPS 24KEc 580 MHz) | MediaTek MT7688 - same | MediaTek MT7688 - same | MediaTek MT7688 - same |
| Form Factor | Eval board (breadboard-ready) | Eval board - same form factor | Bare SoM only | Bare SoM only |
主な差別化要因
- Highest memory configuration in the Omega2 EVAL family （vs OM-O2-EVAL)
- Carrier board included for immediate breadboard use （vs OM-O2P (bare SoM))
- Pre-certified 2.4 GHz Wi-Fi 4 radio inherited from Omega2+ module （vs OM-O2 (bare SoM))
設計ノート
Estimated: supply the OM-O2P-EVAL with a regulated 5 V / 1 A Micro-USB source. Peak current draw during Wi-Fi TX is approximately 400 mA at 3.3 V (per Onion module datasheet), so a marginal 500 mA supply will brown-out under burst load. Do not back-feed 3.3 V through GPIO headers while USB is connected, as the onboard LDO is not designed to share rails with an external source. Add a 100 uF bulk capacitor on the 5 V rail if the host supply is long or noisy.
Keep the antenna area of the Omega2+ module clear of copper pours, ground planes, and tall components. Per the FCC filing for the Omega2+ module, the chip antenna needs a 10 mm keep-out around the antenna pad. If you migrate from the eval board to a custom carrier, replicate the antenna keep-out geometry verbatim, otherwise the radiated efficiency and regulatory compliance of the pre-certified module will be invalidated.
The OM-O2P-EVAL's GPIO pins are 3.3 V logic; connecting 5 V signals directly to any pin will damage the MT7688. Always use a level shifter (such as a TXS0108E or discrete MOSFET circuit) when interfacing with 5 V peripherals. Also note that GPIO 6 and GPIO 7 share the UART1 pins by default and require a device-tree overlay to repurpose; new users often lose serial debug access by accidentally reassigning these pins.
The OM-O2P-EVAL is rated for 0 C to +70 C operation and does not require a heatsink. Estimated: at 25 C ambient, the MT7688 dissipates roughly 0.7 W during continuous Wi-Fi activity, producing a small (~10 C) rise above ambient that is well within the thermal envelope. For sealed enclosures without airflow, monitor the SoC temperature via /sys/class/thermal/ and throttle Wi-Fi duty cycle if temperatures exceed 60 C.
コンプライアンス情報
RoHS compliant and lead-free per Onion product page. REACH, halogen-free, and conflict-minerals declarations are not explicitly published for the EVAL variant; the Omega2+ module inherits FCC/IC/CE radio certification from the MediaTek MT7688 filings. AEC-Q100 is not applicable for a commercial-grade development board.