Product Descriptions
Ra-05/Ra-05U is a 2.4GHz RF transceiver module, equipped with SX1281 RF chip as the core processor, supporting multiple modulation modes such as LORa, FLRC, GFSK, and compatible with Bluetooth protocol. Ra-05/Ra-05U is a pure RF transceiver module that requires the use of MCU drivers or specialized SPI debugging tools.
LoRa direct sequence spread spectrum technology will bring longer communication distances and has the advantages of wide power spectrum and strong anti-interference ability. The module has a hardware FEC forward error correction algorithm, which has high encoding efficiency and strong error correction capability. In the event of sudden interference, it can actively correct the interfered data packets, greatly improving reliability and transmission distance.
Ra-05/Ra-05U has high transmission power and reception sensitivity, and has good performance in spectrum characteristics, harmonic spurious channel crosstalk, and other aspects.
Product Specifications
| 模組型號 Module model | Ra-05/Ra-05U |
| 模組封裝 Module packaging | SMD-14 |
| 尺寸(mm) Size(mm) | Ra-05:15.0*24.0*3.1(±0.2)mm Ra-05U:15.0*17.8*3.1(±0.2)mm |
| 天線形式 Antenna form | Ra-05:板載天線(兼容IPEX座子)Onboard antenna (compatible with IPEX mount) Ra-05U:IPEX座子外接天線IPEX mount external antenna |
| 頻譜范圍 Spectrum range | 2400~2500MHz |
| 工作環(huán)境 Work environment | -40℃~85 ℃ |
| 存儲環(huán)境 Storage environment | 40℃~125°C,<90%RH |
| 供電范圍 Power supply range | 供電電壓1.8V~3.6V Supply voltage 1.8V~3.6V |
| 支持接口 Support interfaces | UART or SPI |
| IO口數(shù)量 Number of IO ports | 3 |
The Ra-05 module has a total of 14 pins connected, as shown in the pin diagram. The pin function definition table is the interface definition
| 腳序 Foot sequence | 名稱 Name | 功能說明 Function Description |
| 1 | VCC | 供電電源，范圍 1.8~3.6V(建議外部增加陶瓷濾波電容) Power supply, range 1.8-3.6V (it is recommended to add ceramic filter capacitors externally) |
| 2 | GND | GND |
| 3 | MISO_TX | SPI 數(shù)據(jù)輸出引腳;還可用于 UART 的發(fā)射引腳 SPI data output pin; Can also be used as the transmit pin for UART |
| 4 | MOSI_RX | SPI 數(shù)據(jù)輸入引腳;還可用于 UART 的接收引腳 SPI data input pin; Can also be used as the receiving pin for UART |
| 5 | SCK_RTSN | SPI時鐘輸入引腳;還可用于 UART 請求發(fā)射引腳 SPI clock input pin; Can also be used for UART request transmission pin |
| 6 | NSS_CTS | 模塊片選引腳 Module chip selection pins |
| 7 | GND | GND |
| 8 | GND | GND |
| 9 | NRESET | 芯片復(fù)位 Chip reset |
| 10 | BUSY | 用于狀態(tài)指示 Used for status indication |
| 11 | DIO1 | 通用IO口 Universal IO port |
| 12 | DIO2 | 通用IO口 Universal IO port |
| 13 | DIO3 | 通用IO口 Universal IO port |
| 14 | GND | GND |
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