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SPI Module
Ebyte SPI RF Module Selection Guide
Ebyte SPI RF modules are embedded wireless transceivers designed for IoT and industrial control systems, based on the Serial Peripheral Interface (SPI) protocol. They connect directly to the host MCU via the SPI bus for full-duplex high-speed data transmission, and integrate RF chip, matching circuit, antenna interface and power management unit on board.
Compared with UART modules, SPI RF modules offer lower latency, higher throughput and simpler hardware architecture. The product portfolio covers 2.4GHz ISM band and Sub-1GHz license-free bands, supporting LoRa, (G)FSK, OOK and proprietary modulation schemes. They are ideal for sensor networks, smart metering, industrial control and gateway designs.
How to Select SPI Module?
| Screening Dimension | Recommended Product Series |
|---|---|
| Transmission Distance | • Ultra-long range (>10km): E28 Series, E29/E290 Series • Long range (3–10km): E22/E32/E220 Series, E106 Series • Medium range (1–5km): E01/E01C Series, E30 Series, E48/E49 Series • Short range (<2km): E07 Series |
| Frequency Band | • 2.4GHz global ISM band: E01/E01C Series, E28 Series • Sub-1GHz (long range & strong penetration): E07, E22/E32/E220, E29/E290, E30, E48/E49, E106 Series |
| Modulation & Protocol | • LoRa spread spectrum: E22/E32/E220 Series, E28 Series, E106 Series • (G)FSK / OOK: E01/E01C Series, E07 Series, E30 Series, E48/E49 Series • Proprietary high-speed RF: E29/E290 Series |
| Application Type | • Compact sensor end-node: E01 Series, E07 Series, E48 Series • Long-range LoRa end device: E22 Series, E28 Series, E29 Series • LoRaWAN gateway design: E106 Series • High-speed industrial data link: E28 Series, E30 Series |
| Supply Chain Requirement | • Global certification & mature ecosystem: E07 (TI), E22/E28/E106 (Semtech) • Domestic chip & cost optimization: E29 (PANCHIP), E48/E49 (Chipanalog) |
Full Series Parameter Comparison Table
| Product Series | Chipset | Frequency Band | TX Power | Max LOS Range | Interface | Key Features |
|---|---|---|---|---|---|---|
| E01 / E01C Series | nRF24L01P / 24R1 / C241 | 2.4 GHz ISM | 0 – 27 dBm | 0.1 – 5 km | SPI | High cost-performance, classic 2.4G transceiver, rich register configuration |
| E07 Series | TI CC1101 | 387 – 925 MHz Sub-1GHz | 10 – 20 dBm | 1 – 2 km | SPI | 64-byte FIFO, RSSI & LQI support, CE/FCC/RoHS certified |
| E22 / E32 / E220 Series | Semtech SX1262/1268/1278, LLCC68 | 160 – 930 MHz Sub-1GHz | 20 – 33 dBm | 3 – 8 km | SPI | LoRa + GFSK + FLRC, industrial grade, high reliability |
| E28 Series | Semtech SX1281 | 2.4 GHz ISM | 12 / 20 / 27 dBm | 5 – 16 km | SPI | 2.4GHz LoRa, long range, low latency, high throughput |
| E29 / E290 Series | PAN3029 / PAN3031 / PAN3060 | 410 – 510 MHz | 20 – 30 dBm | 5 – 16 km | SPI | Domestic chip, frequency hopping, auto error correction, strong anti-interference |
| E30 Series | Silicon Labs SI4438 / SI4463 | 425 – 925 MHz | 20 – 30 dBm | 2.5 – 5.6 km | SPI | Flexible packet structure, wake-on-radio, wide operating voltage |
| E48 / E49 Series | CT230A / CT2310A | 410–510MHz / 850–930MHz | 20 – 30 dBm | 2.5 – 5.5 km | SPI | Domestic industrial-grade, high cost-performance, compact package |
| E106 Series | Semtech SX1302 | 433/470/868/915 MHz | 27 dBm | 5 km | SPI | LoRaWAN gateway baseband, 8-channel parallel reception, high sensitivity |
* Max LOS range is measured in open environment with matched antenna. Actual performance varies with obstacles, interference and antenna gain.
5-Point Quick Selection Guide
- Choose frequency band by deployment scenario. Select 2.4GHz series (E01, E28) for global market compatibility and higher data rate; select Sub-1GHz series for outdoor long-range deployment, wall penetration and industrial interference environments.
- Select modulation by communication requirement. Choose LoRa spread spectrum series (E22, E28, E106) for long-distance and high anti-interference links; choose FSK/GFSK series (E01, E07, E30) for applications requiring higher data throughput.
- Match output power to your link budget. Use E28 or E29 series (up to 16km) for ultra-long-range wireless links; use E22/E32 series (3–8km) for standard industrial LoRa nodes; use E01/E07 series for short-range on-board integration.
- Evaluate supply chain and cost target. Choose Semtech/TI chip based series (E07, E22, E28, E106) for mature software ecosystem and global certification; choose domestic chip solutions (E29, E48) for cost-sensitive projects and secure supply.
- Optimize for hardware integration effort. All SPI modules use standard SPI interface for direct connection to host MCUs. Select the series with matching package size, power consumption and peripheral features according to your PCB layout and firmware architecture.
Ebyte E80-400M2213S Semtech multi-band LoRa LR1121 chip 21.5/13dBm 433M/2.4GHz LoRa dual-band wireless RF transceiver module
$6.20 – $7.60E80-400M2213S is a dual-band SMD LoRa hardware SPI wireless module independently developed based on SEMTECH's LoRa Connect™ LR1121 chip for multi-band global connectivity, with transmit powers of 22dBm and 13dBm...
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