SX1278/SX1276 Wireless Module 433MHz LORA 3km (UART Interface)

โมดูลสื่อสารไร้สายระยะไกล LoRa ความถี่ 433MHz ติดต่อแบบ UART ระยะทางสูงสุด 3 กิโลเมตร 

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Feature:

This module is a wireless transceiver module based on SX1278 from SEMTECH (can be transmitter and receiver both). It adopts LoRa spread spectrum technology, with this technology the transmitting distance and penetration ability of the module improved more than 1 times compared with traditional FSK.The module features FEC (forward error correction) algorithm, which ensure it’s good anti-interference ability.

Parameter:

• Size: approx. 21 x 36mm (without antenna and SMA)
• Interface: UART
• Power: 20dBm
• Distance: 3000m
• RF connector: SMA-K
• Frequency: 433MHz (410-441MHz)
• Operating temperature: -40 ~ +85℃
• Operating temperature: 10% ~ 90%
• Storage temperature: -40 ~ +125
• Frequency band: 410 – 441MHz, default: 433.0MHz, channel: 32, 1MHz stepped frequency,Recommending frequency: 433±5MHz,
• Connector: 1x7x2.54mm, plug-in
• Supply voltage: 2.3 – 5.5V DC (Note: the voltage higher than 5.5V is forbidden.)
  Communication level: UART, USART
• Operation range: about 3000m (test condition:clear and open area & maximum power, antenna gain: 5dBi, height: > 2m,air date rate: 2.4Kbps)
• Transmitting power: Maximum 20dBm(100mW)| four optional level (0-3), step by 3dBm
• Air data rate: default 2.4kbps, can be configured to 0.3, 1.2, 2.4, 4.8, 9.6, 19.2Kbps
• Standby current: 2.0 uA (mode 3, M1=1, M0=1)
• Transmitting current: 110 mA at 20 dBm
• Receiving current: 14.5mA (mode 0 or mode 1) | minimum 30uA (mode 2 + 2s wake-up time)
• Communication interface: UART, 8N1, 8E1, 8O1, eight kinds of UART baud Rate, from 1200 to 115200 bps
• Driving mode: UART can be configured to push-pull/high pull, open-drain
  Transmitting length: 512 bytes buffer,58 bytes per package
• Receiving length: 512 bytes buffer,58 bytes per package
• Address: 65536 configurable addresses(easy for network, broadcast and fixed transmission)
• RSSI support: built-in intelligent processing
• Sensitivity: -130dbm at 0.3Kbps ( sensitivity has nothing to do with serial baud rate and timing)
• Antenna type: SMA-K (external thread hole, 50 ohm impedance)
• Certification: CE, RoHs, FCC