LoRa (short term for long range) is a spread spectrum modulation technique derived from chirp spread spectrum (CSS) technology. LoRaWAN is the network system architecture and communication protocol specification for LoRa, developed by the LoRa Alliance. LoRaWAN is a Media Access Control (MAC) layer protocol that enables LoRa in wider applications. The LoRa Alliance defines the networking layer and the system architecture for the network.

Maduino Zero LoRaWan is a solution based on ATSAMD21G18 MCU and LoRaWAN module Ra-07H. The LoRaWAN module Ra-07H is based on the ASR6501 chip, it integrated the LoRa radio transceiver, LoRa modem, and 32-bit RISC MCU, to support LoRa modulation mode and (G) FSK modulation mode. Maduino LoRaWan acts as a LoRaWAN node to transmit/receive the local data to the network by connecting LoRaWAN Gateway. With this module, users are easy to prototype LoRaWAN projects easily in a few hours.

Updates on 2023/3/8: The latest Maudino Zero LoraWAN 2.0 has been updated to the RA0-08H, which is based on ASR6601, with better performance on power consumption.

Maduino LoRaWan is compatible with Arduino and basic demos communicating with TTN are provided. Note that for LoRaWAN communication, a LoRaWAN router is needed, detailed usage& setup as in the Wiki.

Specifications:

LoRaWAN Protocol Class A/B/C
ATSAMD21G18, 32-Bit ARM Cortex M0+
Interface: I2C/SPI/UART/18*GPIO
With super anti-interference ability, it can work normally in complex interference environment.
Minimum Receiving Sensitivity: -137dBm (SF=12/BW=125KHz)
Maximum Transmit Power +21dBm
Working Frequency: (Ra-07) 410mhz ~ 525mhz, (Ra-07h) 868mhz (default)
Power Supply Voltage of the Board: 3.6V~5V(normally 5V)
Power Supply Voltage of the Module/MCU: normally 3.3V
Transmitting Working Current: 107mA (full load power consumption)
Receive Working Current: 6mA
Sleep Current: 3uA
LDO: AP7361
Charger: MCP73831