Description
Features:
| CATEGORY | SPECIFICATIONS |
|---|---|
| Product Type | LoRa Wireless Communication Module |
| Communication Technology | FSK/GFSK, LoRa Spread Spectrum |
| Communication Mode | Half-duplex |
| Frequency Band | ISM Multiband |
| Transmission Modes | FIFO mode / Direct mode (FIFO recommended) |
| RX Sensitivity | -139 dBm |
| Channel Rejection Ratio (ADJ) | 56 dBm |
| RX Current Consumption | 12–13 mA |
| FIFO Buffer | 256 Bytes TX/RX |
| Configuration Features | AFC, Air Wakeup, Low Power, Carrier Sense, FEC Error Correction, AEC Encryption |
| Power Features | Intelligent reset, low voltage monitor, timing wakeup, sleep mode |
| Detection Function | ISSI channel detection |
| Transmission Options | Multiple frequencies and transmission rates |
| Supported Technologies | FDMA and FM |
| License Requirement | Uses free ISM band frequencies |
| Applications | Remote control, industrial monitoring, wireless alarms, smart home systems |
| Industrial Uses | Oil fields, mining, construction sites, factory automation |
| Monitoring Applications | Automated meter reading (water, gas, electricity) |
| Healthcare Applications | Baby monitors, hospital calling systems |
| Other Applications | Wireless handheld terminals, data collection systems |
| Key Features | Long-range communication, low power consumption, high sensitivity |
| Advantages | Strong anti-interference capability, multiple operating modes, compact wireless solution |
Application Notice:
1. Voltage cannot be out of the range of the module's power supply voltage 1.8 ~ 3.6V, if it is over 3.6V the chip will burn out. Recommending voltage is 3.3V.
2. Module interface adopt semicircle bonding pad, all GND pin should keep reliable connection with digital ground of circuit.
3. Antenna should keep away from system ground.
4. MCU does not have SPI port single-chip and can imitate SPI time to carry out the read-write operation by using ordinary I/O port. SPI rate do not over 10MHz.
5. If the power supply of MCU is 3.3V, it can connect with module without series resistance; if the power supply of MCU is 5V, 3.3V/5V level switching circuit should be accessed
6. DIOO and DIO2 are common data I/O, can produce needed trigger signal according to application configuration
7. In multichannel appication, the channel spacing is 1MHz, if less than 1MHz it's easily to cause same frequency interference.
Remark
1. The communication rate of module will affect communication distance, the higher the communication rate is, the shorter the communication distance will be.
2. The communication rate of module will affect RX sensitivity, the higher the communication rate is, the lower the RX senstivity will be.
3. The power supply voltage will affect transmit power, within the allowable range of working power supply voltage, the lower the voltage is, the lower the transmit power will be.
4. The change of working temperature may cause the migration of the working frequency. It has no influence to the application as long as the temperature is within the working temperature range.
5. Antenna affect much to the communication distance, so should apply the antenna which matches module's frequency, standing-wave ratio should be small and impedance is close to 50ohm
6. The install position and method of module may affect communication distance.
Package Includes:
1 x 433MHz LoRa SX1278 long range RF wireless module
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