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 |