The DTA340 SX1276/8 wireless data transmission module is designed based on SX1276 and SX1278, utilizing SEMTECH LoRa spread spectrum modulation technology, paired with an 8-bit high-speed low-power microcontroller. It is suitable for applications with extremely high requirements for power consumption and transmission distance, such as ultra-long-range wireless sensor networks and remote industrial automation control. The strong anti-interference capability of spread spectrum transmission enables it to adapt to various harsh and complex application environments. The SX1276 covers all major Sub-1GHz frequency bands, while the SX1278 is specifically designed for 433MHz and 470MHz frequency band products. It supports four operating modes, which can be switched freely between each other. In the periodic polling wake-up power-saving mode, it can operate for several years to decades using battery power.

Features:

Uses LoRa spread spectrum modulation technology, ultra-low sensitivity, and ultra-long-range transmission
Transmission distance of 3000 meters at 0.81Kbps
SX1276 supports frequencies of 868MHz and 915MHz

SX1278 supports frequencies of 433MHz and 470MHz
100mW transmission power (configurable)
Extremely low receiving sensitivity: -137dBm at 300bps, -132dBm at 810bps
UART/TTL interface
Multiple channels configurable, with 256-byte data buffer for transmission and reception
Operating voltage of 5V, customizable to 3.3V
Continuous receiving current: 13mA at 4.56Kbps, 15mA at 18.23Kbps

Transmission current: 100mA

Sleep current: 2.5uA, peak 4uA
Built-in watchdog
Dimensions: 32.1*18.3*7.0 (mm)

Applications:

Ultra-long-range, high-performance wireless data transmission, communication, control, and metering systems

Remote wireless meter reading for water and gas meters

Various applications replacing wired RS232 and RS485

Industrial, power, petroleum, logistics, and workshop equipment control and data acquisition

Ultra-long-range industrial automation control and data acquisition

Security and alarm systems, building and facility automation

Various consumer electronics, wireless smart transmitters, flow meters, wireless sensors, and smart meters

Urban LED screens, geomagnetic detectors, streetlight control, and wind-solar hybrid power supply systems