This module is usedfor long distance spread spectrum communication.，Its RF chip SX1276（as show as figure 1）Mainly used LoRaTM remote modem ， for ultra-long-distance spread spectrum communication ， strong anti-interference ， can minimize current consumption. With the help of the SEMTECH the patent technology of LoRaTM, SX1276 and SX1278 with -148dBm high sensititive，with +20dBm power output, long range transmission, high reliablity. Meantime ， relative traditional modulation technique ， LoRa TM modulation technique has obvious advantages in anti-blocking and selection, It solves the problem that traditional design scheme can not consider distance, anti-interference and power consumption simultaneously. Its application can be automatic meter reading, home building automation, security system, remote irrigation system.
Features
LoRa™ modem .
Support FSK、GFSK、MSK、GMSK、LoRaTM and OOK mode
Support 433MHz(YTX1278/SX1278),868MHz and 915MHz(YTX1276/SX1276)
Operating voltage is 3.3V,maximum output +19dBm，the maximum output current is 105mA.
Low power Consumption in a received stat,the received current is 12.15mA，stand-by current is 1.6mA
High sensitivity：as low as -140dBm
Small volume double row stamp hole patch package
SPI interface，using half duplex communication, with CRC、up to 256-byte packet engine
Size:17*16*3.2(±0.2)MM
Package:SMD-16
Working temperature: -40℃~85℃
Storage environment:-40 ℃~125℃,<90%RH
Power supply: 2.7~3.6V, typical value 3.3V, current over 200mA
Support Interface: SPI
Antenna:Compatible half hole weld tray(need to weld antenna)
Pin Definition(See from the product picture)
| No. |
Name |
Function instruction |
| 1 |
ANT |
Antenna |
| 2 |
GND |
Ground |
| 3 |
3.3V |
3.3V power supply(VDD) |
| 4 |
RESET |
Reset |
| 5 |
DI00 |
Digital I00 software configuration |
| 6 |
DI01 |
Digital I01 software configuration |
| 7 |
DI02 |
Digital I02 software configuration |
| 8 |
DI03 |
Digital I03 software configuration |
| 9 |
GND |
ground |
| 10 |
DI04 |
Digital I04 software configuration |
| 11 |
DI05 |
Digital I05 software configuration |
| 12 |
SCK |
SPI clock input |
| 13 |
MIS0 |
SPI data output |
| 14 |
MOSI |
DT doto inn1t
11 uaua lpuu |
| 15 |
NSS |
SPT Sal antion inntt
11 bGI UU1OI IIDuU |
| 16 |
GND |
ground |
