$56.49
Brand: DIYmall
Features:
Details: Description:
ATmega32u4 @ 8MHz with 3.3V logic/power
3.3V regulator with 500mA peak current output
USB native support, comes with USB bootloader and serial port debugging
20 GPIOs
Hardware Serial, hardware I2C, hardware SPI support
Built in 100mA lipoly charger with charging status indicator LED
Power/enable pin
4 mounting holes
Reset button
SX1278 RA02 LoRa based module with SPI interface
8 x PWM pins
10 x analog inputs
Packet radio with ready-to-go Arduino libraries
License-free ISM bands (ITU “Europe” @ 433MHz)
+5 to +20 dBm up to 100 mW Power Output Capability (selectable in software)
~300uA during full sleep
~120mA peak during +20dBm transmit
~40mA during active radio listening.
U.FL (IP) antenna connector
Datasheet MPC73831
http://ww1.microchip.com/downloads/en/DeviceDoc/20001984g.pdf
Datasheet RA02
http://wiki.ai-thinker.com/lora
Datasheet SX1278
http://www.semtech.com/images/datasheet/sx1276_77_78_79.pdf
Package Dimensions: 41x122x30