lora-dat

legacy wiki page

chip

Board

lora-modules-dat
arduino-dat == DVA1007-dat - DVA1008-dat - loraduino-dat == lora-node-dat
DAS1069-dat
MPC1056-dat
DAS1069-dat - ESP8266-dat - LORA-dat - arduino-shields-dat
DVA1010-dat - atmega328-dat + SX1262-dat / LLCC68-dat
DVA1009-dat - LGT8F328-dat + SX1262-dat / LLCC68-dat

Info

LoRa is the physical layer or in simple words is the modulation, the modem or radio, the hardware.
LoRaWAN-dat is the network protocol or architecture that works on LoRa.

Lora

LoRa ™ is a long-range radio technology "Lo ng- Ra nge" its main features:

Its spread spectrum modulation allows a significantly greater scope to other technologies.
High sensitivity (-168dB) combined with high immunity to interference.
Low Consumption (up to 10 years with a battery, good depends on certain characteristics).
Low data transfer (up to 255 bytes).
networking-dat - encryption-dat

Semtech-dat LoRa is a long-range, low-power wireless platform for IoT, generally referring to RF chips using LoRa technology. Its main features are as follows:

LoRa (short for "long range") uses spread spectrum modulation technology derived from Chirp Spread Spectrum (CSS). It is a type of long-distance wireless transmission and LPWAN communication technology. Spread spectrum technology trades bandwidth for sensitivity; Wi-Fi, ZigBee, and others also use spread spectrum, but LoRa modulation is close to the Shannon limit, maximizing sensitivity.

Compared to traditional FSK-dat technology, at the same data rate, LoRa is 8~12dBm more sensitive than FSK.

Currently, LoRa mainly operates in the sub-GHz ISM band.

LoRa technology integrates digital spread spectrum, digital signal processing, and forward error correction coding, greatly improving long-distance communication performance.

LoRa’s link budget is superior to any other standardized communication technology. Link budget refers to the main factor determining distance in a given environment.

The main LoRa RF chips are the SX127X series, SX126X series, and SX130X series. The SX127X and SX126X series are used for LoRa nodes, while the SX130X is used for LoRa gateways. For details, refer to Semtech’s product list.

Lora Tech

RSSI-dat

frequency hopping, spread spectrum, and other technologies are used to improve anti-interference and anti-collision capabilities.

low-power-dat == LORA CAD Mode

Flexible configuration

LBT

The module actively monitors channel environmental noise before transmitting. If the noise exceeds a threshold, transmission is delayed.

This feature improves communication success in harsh environments and can be used for networking and collision avoidance.

Module

EE1 - common series

NWL1071-dat - NWL1072-dat

classic

HPD Series - NWL1074-dat - NWL1075-dat - NWL1077-dat

high power lora series

EE2-dat - NWL1078-dat - NWL1081-dat - NWL1079-dat
antenna connection type = 内孔 = internal hole

lora power and tranmission

dbm	mW	range (km)	range (miles)
30 dbm	5000	10	6.2
22 dbm	500	5	3.1

lora APP

USB + Lora = Lora-USB-dat
loraduino-dat

LoRa devices and networks (such as LoRaWAN) enable smart IoT applications to help address major global challenges like energy management, depletion of natural resources, pollution control, infrastructure efficiency, and disaster prevention. Semtech’s LoRa devices have achieved hundreds of successful application cases in smart cities, homes and buildings, communities, metering, supply chain and logistics, agriculture, and more. LoRa networks now cover hundreds of millions of devices in over 100 countries/regions, aiming to create a smarter planet.

lora-app-dat

lora frequency

Version	Frequency Range	Applicable Regions
HF	850~930 MHz	Europe, America, Oceania
LF	410~510 MHz	Asia, Europe

LoRa工作在不同地区的频段范围如下：

中国：470mhz
美国：902-928mhz
印度：865-867MHz
欧洲：863-870/873MHz
澳大利亚：915MHz
韩国：920-923MHz
部分亚洲地区：923MHz

common configuration

Parameter Name	Default Value	Optional Values / Range
Spreading Factor	7	7~12
Bandwidth	0: 125KHz	1: 250KHz, 2: 500KHz
Coding Rate	4/5	4/5, 4/6, 4/7, 4/8
Transmit Power	22dBm	10~22dBm
Network ID	0	0~255
LBT (Listen Before Talk)	0: Disabled	1: Enabled
Working Mode	1: Stream Mode	2: Packet Mode, 3: Relay Mode
TX Channel (HF)	18 (868MHz)	0~80 (850~930MHz or 410~490MHz)
TX Channel (LF)	23 (433MHz)	0~80 (850~930MHz or 410~490MHz)
RX Channel (HF)	18 (868MHz)	0~80 (850~930MHz or 410~490MHz)
RX Channel (LF)	23 (433MHz)	0~80 (850~930MHz or 410~490MHz)
Address	0	0~65535 (65535 is broadcast listening address)
Interface Selection	3: RS232	1: RS422, 2: RS485, 3: RS232
Interface Baud Rate	115200bps	1200~115200bps
Interface Parity	None	None, Odd, Even
Key	0 (No encryption)	0~65535