Ra-01SH - 803-930MHz LoRa SX1262 Transceiver Module | Ai-Thinker
MPN: Ra-01SH ✓ Hoạt độngRa-01SH Tóm tắt
What is a LoRa transceiver module? A LoRa (Long Range) transceiver is a sub-1 GHz radio modem that uses spread-spectrum chirp modulation to deliver kilometer-scale wireless links at very low data rates. It belongs to the broader family of ISM-band wireless transceivers (which also includes sub-GHz FSK radios, Sigfox, and proprietary OOK links), all of which trade data throughput for link budget and battery life. A LoRa module integrates the SX126x-class radio IC, a TCXO or crystal reference, an RF matching network, and an antenna interface into a single reflow-solderable unit, exposing a digital SPI control port to the host MCU and removing the need for RF expertise during board bring-up.
The Ra-01SH is engineered for ultra-long-range, low-data-rate applications where link margin and interference immunity dominate the design. Its Semtech SX1262 radio delivers up to +22 dBm Tx power while the receiver's -148 dBm sensitivity (at the lowest spreading factor and maximum bandwidth) yields link budgets suitable for multi-kilometer line-of-sight links. FSK, GFSK, MSK, GMSK and OOK compatibility add flexibility for legacy or proprietary narrow-band protocols.
Typical applications include LoRaWAN end-node sensors, Meshtastic mesh nodes, remote metering, agricultural and environmental telemetry, low-power wide-area network (LPWAN) prototyping, and industrial remote control. The module's 4.2 mA receive current and deep-sleep support make it ideal for battery-powered devices that spend most of their life in standby.
When designing with the Ra-01SH, treat the antenna section as a critical RF sub-circuit: keep the I-PEX antenna far from ground pours and metal shields, and respect ESD precautions per Ai-Thinker's specification document. Use a 3.3 V regulated rail capable of delivering the ~140 mA transmit peak, and a 10 uF + 100 nF decoupling network at the module's VDD pins to suppress load-step transients.
Bộ thay thế dễ dàng lắp đặt cho Ra-01SH — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với Ra-01SH (cùng hình factor và footprint) — khác nhau ở Maximum TX Power, RF Chip, Receive Sensitivity, Supply Voltage.
Ra-01SCH
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
Ra-01SH-P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
Ra-01H
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →HT-RA62
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
Ra-01S
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
Ra-01SH Thông số kỹ thuật (bản công bố của nhà sản xuất)
| Module Type | LoRa Transceiver Module |
| RF Chip | Semtech SX1262 |
| Frequency Range | 803 MHz to 930 MHz |
| Modulation | LoRa, FSK, GFSK, MSK, GMSK, OOK |
| Maximum TX Power | +22 dBm (160 mW) |
| Receive Sensitivity | -148 dBm (LoRa, max SF/BW) |
| Điện áp cung cấp | 2.7 V to 3.6 V |
| Recommended Supply Voltage | 3.3 V |
| TX Current | 140 mA at +22 dBm |
| RX Current | 4.2 mA |
| Giao diện | SPI |
| Antenna Connector | I-PEX (U.FL compatible) |
| Hộp | SMD-16P |
| Package Type | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +85 C |
| Modulation Sensitivity | -140 dBm (FSK, typical) |
| Frequency Bands Supported | 868 MHz (EU), 915 MHz (US/AU), 923 MHz (AS923) |
| Trạng thái RoHS | Compliant |
Cấu hình chân Ra-01SH
| Chân 1 | GND — Ground reference |
| Chân 2 | IO4 — SX1262 GPIO (general purpose RF switch control) |
| Chân 3 | IO5 — SX1262 GPIO (general purpose RF switch control) |
| Chân 4 | IO6 — SX1262 GPIO (general purpose) |
| Chân 5 | IO8 — SX1262 GPIO (general purpose, optional status LED) |
| Chân 6 | IO9 — SX1262 GPIO (general purpose) |
| Chân 7 | RST — SX1262 reset, active low |
| Chân 8 | BUSY — SX1262 busy / status flag, active high |
| Chân 9 | DIO1 — SX1262 interrupt output for packet events |
| Chân 10 | DIO2 — SX1262 programmable interrupt I/O (often used as RF switch control) |
| Chân 11 | DIO3 — SX1262 programmable interrupt I/O (often used as RF switch control) |
| Chân 12 | CSN — SPI chip select, active low |
| Chân 13 | SCK — SPI clock |
| Chân 14 | MOSI — SPI master out / slave in |
| Chân 15 | MISO — SPI master in / slave out |
| Chân 16 | VDD — 3.3 V supply (2.7 V to 3.6 V) |
Đặc tính điện và nhiệt
| Công suất đầu vào | 2.7 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C |
Các thông số điện và nhiệt của Ra-01SH được công bố bởi nhà sản xuất.
Ứng dụng tiêu biểu
Ra-01SH phù hợp cho 6 Áp dụngs: LoRaWAN End-Nodes (Sensor Telemetry), Meshtastic Off-Grid Mesh Nodes, Industrial Metering and SCADA Telemetry, Agricultural / Environmental Sensor Networks, Home and Building Automation Bridges, Remote Control and Wireless Sensor Links.
LoRaWAN End-Nodes (Sensor Telemetry)
The Ra-01SH's -148 dBm LoRa sensitivity and +22 dBm TX power make it ideal for Class A LoRaWAN sensor nodes that must run for years on a coin cell or lithium pack. Placed on the SPI bus of a low-power MCU such as an STM32 or ESP32, the module's 4.2 mA RX current and deep-sleep support enable duty-cycled wake-measure-transmit cycles. Link budgets routinely exceed 150 dB at SF11/BW125 kHz, which translates to multi-kilometer outdoor range in EU868/US915 deployments. Use a 3.3 V LDO rated for at least 250 mA peak to handle the 140 mA TX transient cleanly.
Được đề xuất
Meshtastic Off-Grid Mesh Nodes
Mesh firmware such as Meshtastic validates the Ra-01SH as a reference SX1262 module because its 803-930 MHz range covers the channel presets used by the mesh protocol across EU, US and Asia. The module's SPI interface lets it share a single SPI bus with the host's flash and sensors, while its +22 dBm TX output provides the link budget needed for sparse, mobile mesh deployments. Range tests commonly reach 5-10 km line-of-sight. Commissioning requires setting the same regional preset (US915/EU868/AS923) on module and host to align channel masks.
Được đề xuất
Industrial Metering and SCADA Telemetry
For utility metering, water/gas AMR, and industrial SCADA tags, the Ra-01SH provides a robust narrow-band link at 868/915 MHz with strong interference immunity thanks to LoRa's chirp spread spectrum. Its SPI control port is straightforward to integrate with industrial PLCs and Cortex-M4 MCUs, and the -148 dBm RX floor supports in-building or below-grade installation where signal is heavily attenuated. The module's 2.7-3.6 V supply simplifies integration with 3.3 V PLC backplanes, and the SMD-16P package supports reflow assembly for volume manufacturing.
Được đề xuất
Agricultural / Environmental Sensor Networks
Outdoor farms, vineyards, weather stations and forestry deployments benefit from the Ra-01SH's -40 C to +85 C operating range and its ability to push +22 dBm across 803-930 MHz for long, line-of-sight links. Sitting on a solar-powered IoT sensor with a 3.3 V regulator, the module's 4.2 mA RX current keeps night-time telemetry budgets tiny. Antenna placement is critical: keep the I-PEX antenna assembly clear of metal enclosures, water tanks and dense foliage to preserve range. The module's -148 dBm LoRa sensitivity extends single-hop coverage across many hectares.
Được đề xuất
Home and Building Automation Bridges
In smart-home hubs, the Ra-01SH can act as a low-cost sub-GHz bridge between battery-powered sensors (window, doorbell, leak) and a Wi-Fi/BLE gateway. Modulation flexibility (LoRa/FSK/GMSK/OOK) lets the same hardware talk to legacy 433/868 MHz proprietary sensors and modern LoRa devices. The small SMD-16P form factor fits inside slim wall-mount boxes, while the I-PEX connector accepts a wide range of third-party antennas including stub PCBs and external whips.
Được đề xuất
Remote Control and Wireless Sensor Links
RC drones, robotics and industrial remote I/O can leverage the Ra-01SH's FSK/GFSK modes for low-latency deterministic links where LoRa's long-range chirp isn't required. Its +22 dBm output gives robust telemetry at distances where a 433/868 MHz remote control link can drop frames. On the receive side the SX1262's programmable packet engine supports custom GMSK/MSK protocols up to 300 kbps, allowing lightweight encrypted command-and-control traffic without bogging down the host MCU.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho Ra-01SH — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | Ra-01SCH | Ra-01SH-P | Ra-01H | HT-RA62 | Ra-01S |
|---|---|---|---|---|---|---|
| Package | SMD-16P | SMD-16P - same | SMD-16P - same | SMD-16P - same | SMD-16P footprint - same | SMD-16P - same |
| Brand | Ai-Thinker | Ai-Thinker | Ai-Thinker | Ai-Thinker | Heltec Automation | Ai-Thinker |
| RF Chip | Semtech SX1262 | Semtech SX1262 | Semtech SX1262 | Semtech SX1262 | Semtech SX1262 | Semtech SX1276 |
| Frequency Range | 803-930 MHz | 803-930 MHz | 803-930 MHz | 803-930 MHz | 803-930 MHz | 410-525 MHz |
| Maximum TX Power | +22 dBm | +22 dBm | +29 dBm | +22 dBm | +22 dBm | +20 dBm |
| RX Sensitivity | -148 dBm | -148 dBm | -148 dBm | -148 dBm | -148 dBm | -148 dBm |
| Supply Voltage | 2.7-3.6 V | 2.7-3.6 V | 2.7-3.6 V | 2.7-3.6 V | 2.7-3.6 V | 2.7-3.6 V |
| TX Current | 140 mA | 140 mA | 750 mA | 140 mA | 140 mA | 120 mA |
| Interface | SPI | SPI | SPI | SPI | SPI | SPI |
Bảo phân biệt quan trọng
- Highest link budget in 803-930 MHz from a stock SMD-16P module (vsRa-01S)
- Lower TX current for typical sensor duty-cycling (vsRa-01SH-P)
- Better documented SPI reference design (vsHT-RA62)
Ghi chú thiết kế
Estimated: Peak TX current is ~140 mA at +22 dBm, with burst transients exceeding that as the SX1262 internal PA ramps. Provide a 3.3 V LDO or DC-DC rated for at least 250 mA of continuous load and place a low-ESR 10 uF bulk + 100 nF decoupling cap within 5 mm of the module's VDD pin to suppress load-step ringing. For battery designs use a TI TPS62840 or equivalent to keep efficiency above 90% across the TX pulse.
Keep the I-PEX antenna footprint and the keep-out zone beneath it completely free of ground copper, traces, and metal shields. The castellated pad edge of the SMD-16P package serves as both the RF feedpoint and the antenna reference - any nearby metal will detune the antenna and reduce link budget by 5-10 dB. Follow Ai-Thinker's reference layout in the specification PDF for optimal RF performance.
The SX1262 requires careful SPI timing; the BUSY pin must be polled before issuing the next command - simple block writes while BUSY is high are ignored. Initialize the module with the matching regional LoRaWAN parameter set in EEPROM-equivalent (SX126x retention memory); sending commands with the wrong band plan makes the radio transmit on unauthorized frequencies and can violate ETSI/FCC rules. Always reset the module via the RST pin after power-up glitches to ensure deterministic boot.
Thông tin tuân thủ
RoHS compliant per JLCPCB part record C2764087. The module is an ESD-sensitive device per Ai-Thinker's specification - standard ESD handling required during manufacturing and field service.
