SX1278 HDK

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Features

Main features

  • SPI Interface
  • central frequency 433mhz, or 470mhz
  • referencial distance 10KM
  • SX1278 IC, TTL output
  • Max power rate 20dbm, can be setup by software
  • 1.7-3.8V power supply

Specfication

  • Operating voltage: 1.8 ~ 3.7V
  • Receiving current: 10 ~ 14mA
  • Tranmission current:
  • 120 mA @ + 20 dBm
  • 90mA @ + 17dBm
  • 29mA @ + 13dBm
  • Operating frequency: 433MHz, 475MHz
  • Transmit power: +20 dBm
  • Receiver sensitivity:
  • -139dBm @ LoRaTM & 62.5Khz & SF = 12 & 146bps
  • -136 @ LoRaTM & 125Khz & SF = 12 & 293bps
  • -118 @ LoRaTM & 125Khz & SF = 6 & 9380bps
  • -123@FSK&5Khz&1.2Kbps
  • -117@FSK&5Khz&4.8Kbps
  • -110@FSK&20Khz&38.4Kbps
  • Frequency error: +/- 10ppm
  • FIFO space: 64 bytes
  • Data rate:
  • 1.2K~300Kbps@FSK
  • 0.018K ~ 37.5Kbps @ LoRaTM
  • Modulation: FSK, GFSK, MSK, GMSK, LoRaTM, OOK
  • Interface type: SPI
  • Sleep Current: 0.2uA@SLEEP, 1.5uA @ IDLE
  • Operating temperature: -40 ℃ ~ +85 ℃
  • Digital RSSI function
  • Automatic frequency correction
  • Automatic Gain Control
  • RF wake-up function
  • Low voltage detection and temperature sensors
  • Fast wake-up and frequency hopping
  • Highly configurable packet handlers
  • Antenna diversity and TX / RX switch control

Pin definition, size

Sx1278 pins.jpg
  • 1 GND - Negative power ground
  • 2 SO I SPI interface MISO data output
  • 3 SI O SPI interface MOSI data input
  • 4 SCK I SPI interface SCLK clock input
  • 5 NSS I SPI Interface NSS Select input
  • 6 RESET I Reset pin
  • 7 DIO5 I / O direct connect chip DIO5 digital I / O pin, software setting
  • 8 GND - Negative power ground
  • 9 RF I / O RF signal input / output, connected to 50Ω antenna
  • 10 GND - Negative power ground
  • 11 DIO3 I / O direct connect chip DIO3 digital I / O pin, software setting
  • 12 DIO4 I / O direct connect chip DIO4 digital I / O pin, software setting
  • 13 VCC - positive power supply 1.8 ~ 3.7V
  • 14 DIO0 I / O direct connect chip DIO0 digital I / O pin, software setting
  • 15 DIO1 I / O direct connect chip DIO1 digital I / O pin, software setting
  • 16 DIO2 I / O Direct Connect DIO2 Digital I / O pin, software setting


LORA Modules

EE1 Lora Module 100mW

  • Pin definition

  • Dimension

Pin Definition

  • GND - negative ground
  • SDO 0 SPI Interface MISO Data Output
  • SDI I SPI Interface MOSI Data Input
  • SCK I SPI Interface SCLK Clock Input
  • SEL I SPI Interface NSS Select Input
  • RST I/O reset pin
  • IO5 I/O Direct Chip DIO5 Digital I/O Pin, Software Set
  • GND - negative ground
  • ANT I/O RF Signal Input/Output with 50Ω Antenna
  • GND - negative ground
  • IO3 I/O Direct Connect Chip DIO3 Digital I/O Pin, Software Setup
  • IO4 I/O Direct Connect Chip DIO4 Digital I/O Pin, Software Setup
  • VCC - Positive Power Supply 1.8 to 3.7V
  • IO0 I/O directly connected to the chip DIO0 digital I/O pin, software setting
  • IO1 I/O Direct connection to chip DIO1 digital I/O pin, software setting
  • IO2 I/O Direct Connect Chip DIO2 Digital I/O Pin, Software Setup

Specification

  • Interface form: SPI
  • Sleep current: 0.2uA@SLEEP, 1.5uA@IDLE
  • Working temperature: -40°C～+85°C
  • Digital RSSI function
  • Automatic frequency correction
  • Automatic gain control
  • RF wake up function
  • Low voltage detection and temperature sensor
  • Fast wake-up and frequency hopping
  • Highly configurable packet handler
  • Antenna diversity and TX/RX switch control
  • Size: 16*16*2.7mm, including plate thickness 1mm
  • Operating voltage: 1.8 to 3.7V
  • Receiving current: 10~14mA
  • Send current: 120mA@+20dBm, 90mA@+17dBm, 29mA@+13dBm
  • Operating frequency: 433MHz, 470MHz
  • Transmission power: +20dBm
  • Receiving sensitivity:
-139dBm@ LoRa TM &62.5Khz&SF=12&146bps
-136@LoRa TM &125Khz&SF=12&293bps
-118@LoRa TM &125Khz&SF=6&9380bps
-123@FSK&5Khz&1.2Kbps
-117@FSK&5Khz&4.8Kbps
-110@FSK&20Khz&38.4Kbps
  • Frequency error: +/-10ppm
  • FIFO space: 64Byte
  • Data rate:
1.2K to 300Kbps@FSK
0.018K～37.5Kbps@ LoRa TM
Modulation: FSK, GFSK, MSK, GMSK, LoRaTM, OOK

EE2 Lora Module 1W

Version 433 868 915 170
Frequency 410~441mhz 862~893mhz 900~931mhz 160~173.5mhz
Feature ISM - Asia EU America High peneration
Chip SX1278 SX1276 SX1276 SX1278
Power 30dBm (1W) 30dBm (1W) 30dBm (1W) 30dBm (1W)
Distance 8Km 8Km 8Km 8Km
Communication UART UART UART UART
Footprint and Size 43*24 mm DIP 43*24 mm DIP 43*24 mm DIP 43*24 mm DIP
Current 610 mA 680 mA 700 mA 680 mA
Voltage 3.3-5.2VDC 3.3-5.2VDC 3.3-5.2VDC 3.3-5.2VDC
Baud rate 1200-115200 1200-115200 1200-115200 1200-115200
On Air speed 0.3-19.2kbps 0.3-19.2kbps 0.3-19.2kbps 0.3-19.2kbps
Transmission length 512 bytes 512 bytes 512 bytes 512 bytes
Sensitivity -147dbm@0.3kbps -147dbm@0.3kbps -147dbm@0.3kbps -147dbm@0.3kbps

Working Mode

  • M0/M1 - 0/0 - normal mode
  • M0/M1 - 1/0 - wake up on air from transitter mode, auto add wake code
  • M0/M1 - 0/1 - wake up on air from receiver mode, can not send in this mode
  • M0/M1 - 1/1 - sleep mode, also enter into config mode


Reference Schematic

  • ESP Lora schematic

  • application - Use with atmega48 IC

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