433MHz SX1278/SX1276 LORA Wireless Module 8000 meter Long Distance 1w lora Spread Spectrum Wirless Serial port UART transceiver

433MHz SX1278/SX1276 LORA Wireless Module 8000 meter Long Distance 1w lora Spread Spectrum Wirless Serial port UART transceiver
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  • Список ценUS $20.69piece
  • Продажная ценаUS $20.69piece
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Oписание продукта

Module introductions

 

AS32-TTL-1W is a 1W, industrial-grade wireless data transmission module with high stability.The module uses SX1278 main chip, LORA spread spectrum transmission, TTL level output,compatible with 3.3V and 5V IO port voltage. And the module on the basis of the old version has been upgraded as following: the use of efficient loop interleaving error correction coding algorithm, the coding efficiency, error correction capability. In the case of sudden interference,it can actively correct the disturbed data packets. The maximum continuous error correction 64bit greatly improves the module\'s anti-jamming and transmission distance, and in theabsence of error correction algorithm, this error packet can only be discarded; The LORA spread spectrum gives the module greater communication distance.

The module has four operating modes that can be switched freely at run time. In power saving mode,the current consumption is only a few dozen uA, ideal for ultra low power applications.

AS32’s operating frequency is 410MHz ~ 441MHz, a total of 32 information channels, each channel’s interval is 1M. The serial port baud rate ,transceiving frequency, transmitting power, RF rate and other parameters can be modified on Online.

 

Features of the products

 

  • Working frequency band: 433MHz no application frequency band
  • a variety of power levels (maximum 100mW)
  • a variety of baud rates, a variety of RF rates
  • four kinds of work modes
  • ultra low power consumption
  • sleep current is only 1.5uA
  • support the air wake-up function
  • double 256 loop FIFO
  • efficient cycle of intertwined error correction coding,
  • the maximum error correction 64bit
  • built-in watchdog, never crash
  • frequency 410- 441M, providing 32 channels
  • Receive sensitivity up to -130dBm, transmission distance of 8000 meters
  • Automatic subcontracting transmission to ensure the integrity of the packet
  • support module voltage read function

 

Typical application

 

  • Hotel electronic door locks, biometric access control management system
  • Medical and electronic instrumentation automation control
  • Intelligent teaching equipment, baby care, medical ward call system
  • Home appliances and intelligent lighting control
  • Anti-theft alarm smart card, railway locomotive remote detection
  • Water, electricity, gas, heating automatic meter reading system or reactive power compensation and power grid monitoring
  • LED screen wireless transmission of text, pictures and wireless control
  • Wireless crane scale, vehicle monitoring, aging equipment testing
  • Industrial equipment data wireless transmission and industrial environmental monitoring
  • Video monitoring PTZ control, access control attendance card reader
  • Weather / oil / water equipment information collection and natural environment detection street lamp detection control
  • Mine attendance positioning system, gas detection alarm

 

123456SIZE7

 

Pin
No.

Pin

name

Pin
orientation

Pin use

1

MD0

Input (very weak pull-up)

Cooperate with MD1 to decide 4 working modules Can not be left in the air 

2

MD1

Input (very weak pull-up)

Cooperate with MD0 to decide 4 working modules Can not
be left in the air 

3

RXD

Input

TTL serial input, connected to external TXD output pin. Can be configured as open-drain or pull-up input, see parameter settings 

4

TXD

Output

TTL serial output, connected to external RXD input pin. Can be configured as open-drain or pull-up output, see parameter settings 

5

AUX

Output

Used to indicate the working status of the module, the user wake up the external MCU, power-on during the initialization period of self-test, it output low power level, can be configured to Open-drain output, or push-pull output, see parameter settings 

6

VCC 

 

Power input, voltage 2.0-5.5V (Note: less than 3.6V the output power will decline, but the impact on the reception performance is very small.) 

7

GND 

 

Ground line, connected to the power supply reference ground 

 

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For your convenient test,we will provide datasheet,driver and Demo program,please feel free to contact us.