17816967453048423
LoRa Module +SIM Module
4pcs LoRa32u4 II Development Board 868MHz 915MHz Lora Module IOT SX1276 HPD13 Wifi Transceiver Module Antenna JST Connector
4pcs 433MHz LoRa32u4 Ra-02 1KM LoRa Wifi Transceiver Module Atmega328 SX1278 LiPo JST Connector Antenna for Arduino
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4pcs SX1276 LoRa RF Transceiver Module 868MHz 915MHz 100mW High Sensitivity 4km Long Distance
868MHz 915MHz FPC Lora Antenna 1.13 IPEX Interface for Lora32u4 Wifi Transceiver Module
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SIM868 Module GSM GPRS GPS Development Board Breakout Replace SIM808 for Arduino STM32
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4pcs 433MHz LoRa32u4 Ra-02 1KM LoRa Wifi Transceiver Module SX1278 LiPo JST Connector Antenna for Arduino
Description:
LoRa32u4 is a light and low consumption board based on the Atmega32u4 and 433MHz LoRA module RA02 from AI-Thinker and an USB battery charging circuit. Ideal for creating long range wireless networks that can exceed 2.4 GHz 802.15.4 and similar, it is more flexible than Bluetooth LE, does not require high power unlike WiFi and offers long range.
The RA02 LoRa module is fitted with an U.FL (IPX) external antenna connector.
The ATmega32u4 is clocked at 8 MHz and 3.3 V. This chip has 32 K of flash, 2 K of RAM and built-in USB to Serial communication, debugging and programming capabilities without the need for an external FTDI chip, it can also act as an HID device (mouse, keyboard, USB MIDI device, etc).
This board is also equipped with a LiPo and Liion charging circuit and a standard battery interface. It is fully compatible with Arduino. A white user led is tied to pin 13. An orange LED is used for charging status.
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
In order to minimize iQ, the battery monitoring circuit is now active, to use it you need to enabled the circuit first by setting the pin PD5 high
once it is enabled, the voltage can be measured with the pin PB5 which is ADC12 (Arduino pin 9)
FIY the voltage divider values are 100K and 27K, 1%
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
Pinout diagram:
http://www.diymalls.com/files/DIY0031-lora32u4.zip
code link https://github.com/hj91/nodemcu-esp8266/blob/master/lora_sender/lora_sender.ino
For 1pcs 433MHz LoRa32u4 antenna, pls click here,
17816967453048451
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