LORA915 - 915MHz LoRa Transceiver Module | Olimex | IoT
部品番号: LORA915 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LORA915 概要
A LoRa module is a sub-GHz wireless transceiver subsystem that implements Semtech's LoRa spread-spectrum modulation on top of a silicon transceiver such as the SX1276. Within the IoT connectivity hierarchy it sits between a bare RF chip and a fully integrated LoRaWAN node: the module provides the RF front end, matching network, and connector, while the host MCU supplies the LoRaWAN stack. LoRa's chirp spread spectrum modulation delivers long range at very low data rates, making it the dominant technology for battery-powered telemetry in smart cities, agriculture, and industrial monitoring.
Key features of the LORA915 include operation in the 915 MHz ISM band (the LoRa band used in North America), the Semtech SX1276 transceiver with LoRa and FSK/OOK modulation support, a U.FL (IPEX) connector for external antennas, and surface-mount integration. Olimex publishes the full hardware design as open-source hardware on GitHub (OLIMEX/LoRa-868-915), giving engineers complete schematics for design reuse.
The SX1276 architecture combines a low-IF receiver with programmable spreading factors, enabling the classic LoRa trade-off between link budget and data rate. Because the module is a board-level design rather than a castellated chip module, integration is typically via its connector interface rather than direct PCB land pattern. Related family members include the LORA868 (868 MHz for Europe), LORA915-ANT (integrated PCB trace antenna), MOD-LoRa915 (UEXT connector for direct attachment to UEXT-equipped Olimex boards), and MOD-LoRa915-ANT (UEXT plus +2 dBi PCB antenna with 10 cm cable).
Typical applications include North American LoRaWAN end nodes, Meshtastic-style mesh networks, agricultural sensor telemetry, smart-metering, and long-range battery-powered IoT sensors. The 915 MHz band alignment makes this module the correct choice for US915 and AU915 regional plans.
Design consideration: always attach a suitable external antenna before powering the SX1276 transmitter - transmitting without an antenna can stress the PA output stage. Choose the 915 MHz variant only for 915 MHz regional plans; 868 MHz and 915 MHz antennas are not interchangeable due to different tuning.
This page synthesizes distributor availability data, Olimex open-source-hardware documentation, family cross-references, and practical design notes not found on the manufacturer product page alone.
ドロップイン代替品: LORA915 — 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。
クイック比較ツール — 並列比較する代替部品を選択:
LORA915-ANT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LORA868
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MOD-LoRa915
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MOD-LoRa915-ANT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LORA915 仕様
| Product Type | LoRa Transceiver Module |
| RF Transceiver IC | Semtech SX1276 |
| Center Frequency | 915 MHz |
| Frequency Band | General ISM < 1 GHz |
| Modulation | LoRa (spread spectrum) |
| Antenna Connector | U.FL |
| Antenna Included | No |
| 実装タイプ | Surface Mount |
| Open Source Hardware | Yes (schematics published) |
| Regional Plan | North America (US915) |
LORA915 standard ピン配置ガイド
LORA915 (standard パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: LORA915.
詳細は データシート をご参照ください。
主な用途
LORA915 の用途: 6 件s: North American LoRaWAN End Nodes, Meshtastic and Mesh IoT Networks, Agricultural Sensor Telemetry, Smart Metering and Utility Infrastructure, Smart City Asset Monitoring, Industrial Remote I/O and SCADA Telemetry.
North American LoRaWAN End Nodes
The LORA915 is purpose-built for LoRaWAN end devices operating under the US915 regional plan, since 915 MHz is the LoRa band designated for North America. Its Semtech SX1276 transceiver supports the spreading factors used by LoRaWAN classes A, B, and C, and the U.FL connector allows integrators to select antennas that meet EIRP limits for the regional profile. Battery-powered asset trackers, utility meters, and environmental sensors benefit from LoRa's kilometre-scale range at microamp sleep currents. Using a pre-matched module board with published schematics eliminates the RF tuning risk of a discrete SX1276 design and shortens certification cycles.
おすすめ
Meshtastic and Mesh IoT Networks
Community mesh networks built on LoRa radios, such as Meshtastic-style deployments, widely use 915 MHz SX1276 hardware in North America. The LORA915 provides exactly this radio subsystem: SX1276, matched front end, and U.FL antenna connection, with fully open schematics that mesh firmware communities can audit. Node builders mount the module on a small MCU carrier, attach an external omni antenna, and achieve multi-kilometre hops at low baud rates. Because firmware communities already target SX1276 hardware, driver support is mature, and the open-source hardware files make custom node carriers straightforward to derive from Olimex's design.
おすすめ
Agricultural Sensor Telemetry
Farms and ranches across North America deploy soil-moisture, weather, and tank-level sensors across hundreds of hectares where cellular coverage is absent. The LORA915's 915 MHz ISM operation is license-free in the US, and LoRa's link budget penetrates crop canopies and reaches gateways kilometres away. The U.FL connector lets installers place a high-gain outdoor antenna on a pole while keeping electronics sealed in an enclosure. Battery life dominates the design: the SX1276-based radio sleeps at microamp levels between transmissions, letting a small lithium cell run a reporting node for years at 15-minute reporting intervals.
おすすめ
Smart Metering and Utility Infrastructure
Water, gas, and electric meter reading in North America commonly uses sub-GHz licensed-exempt links at 915 MHz. The LORA915's SX1276 supports both LoRa and FSK/OOK modulation, allowing migration paths between legacy FSK metering protocols and modern LoRaWAN networks on the same hardware platform. The surface-mount board form factor integrates into meter enclosures, and the open-source schematics let metering OEMs verify the RF design for regulatory filings. The U.FL connector accommodates internally mounted loop antennas tuned for plastic meter housings, preserving the compact mechanical envelope utilities require.
おすすめ
Smart City Asset Monitoring
Parking sensors, waste-container fill monitors, and streetlight controllers in US municipalities increasingly report over 915 MHz LoRaWAN networks operated by city-wide gateways. The LORA915 fits these designs as the radio subsystem: its 915 MHz band alignment matches US915 channel plans, and the +2 dBi antenna options in the Olimex family (LORA915-ANT) simplify compact pole-mounted nodes. Long range at low data rates means a handful of gateways covers a downtown district. Designers should budget for duty-cycle and dwell-time limits of the regional plan, which the SX1276's flexible packet engine accommodates at the MAC layer.
おすすめ
Industrial Remote I/O and SCADA Telemetry
Remote pump stations, tank farms, and pipeline monitoring points need reliable low-rate telemetry where wiring is uneconomical. A LORA915-based node reports pressure, level, and valve states to a LoRaWAN gateway linked to the plant SCADA system. The SX1276's robust chirp spread-spectrum modulation resists industrial interference at 915 MHz, and the module's open schematic documentation satisfies the design reviews common in industrial OEM workflows. Using the U.FL connector with a directional antenna, links of many kilometres are achievable line-of-sight, and battery or solar power keeps installation cost far below trenching for cable runs.
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: LORA915 — 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 | LORA915-ANT | LORA868 | MOD-LoRa915 |
|---|---|---|---|---|
| Package | Surface-mount module board, U.FL connector | Surface-mount module board, PCB trace antenna - same board | Surface-mount module board, U.FL connector - same board | Surface-mount module board, UEXT connector |
| Brand | Olimex | Olimex | Olimex | Olimex |
| RF Transceiver IC | Semtech SX1276 | Semtech SX1276 | Semtech SX1276 | Semtech SX1276 |
| Frequency Band | 915 MHz (North America) | 915 MHz (North America) | 868 MHz (Europe) | 915 MHz (North America) |
| Antenna Solution | U.FL, antenna not included | +2 dBi PCB trace antenna | U.FL, antenna not included | U.FL, antenna not included |
| Host Interface | Board-to-carrier interface (see Olimex schematics) | Same as LORA915 | Same as LORA915 | UEXT connector (direct to UEXT boards) |
| Open Source Hardware | Yes (GitHub OLIMEX/LoRa-868-915) | Yes | Yes | Yes |
| Primary Region | North America (US915) | North America (US915) | Europe (EU868) | North America (US915) |
主な差別化要因
- External antenna flexibility via U.FL （vs LORA915-ANT)
- Correct regional band for North America （vs LORA868)
- Standalone board vs UEXT host convenience （vs MOD-LoRa915)
設計ノート
Never transmit without an antenna attached: Olimex's own product page carries an explicit warning to attach a fitting external antenna, because transmitting into an open U.FL port can drive the SX1276 PA output into a mismatched load and stress or damage the output stage. Fit the antenna before first power-up, and use a 915 MHz-tuned antenna - 868 MHz antennas look identical but break impedance matching at 915 MHz, reducing range and increasing PA stress.
Match the module to your regional band plan before committing to a BOM: the LORA915 is for 915 MHz North America, while the LORA868 variant covers the 868 MHz European band. They share the same board but use band-specific matching, and antennas are not interchangeable between the two bands. Deploying a 915 MHz module in an EU868 network violates regional regulations and yields poor link performance due to the mismatched matching network and antenna.
Leverage the open-source schematics in the OLIMEX/LoRa-868-915 GitHub repository when designing your carrier board. Keep the host MCU's SPI or control lines short, provide a solid ground plane under the module, and follow the impedance-matching section of the Olimex schematic if you fork the design. Verify software support early: SX1276 drivers are available for all major LoRaWAN and mesh stacks, so integration effort is mostly in the host firmware rather than the radio.
コンプライアンス情報
Compliance data was not present in the provided verified web data; consult Olimex product documentation for RoHS/REACH declarations.
