/WLR089U0-SAMR34-Dev-Board-LoRaWAN

Development board for Microchip's WLR089U0 LoRaWAN module based onthe SAMR34 LoRa SiP IC

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WLR089U0-SAMR34-Dev-Board-LoRaWAN

Development board for Microchip's WLR089U0 LoRaWAN module consisting of the SAMR34 SiP IC

PCB Information:

  1. SAMR34 based SiP
  2. Inbuilt u.Fl connector, so no need to worry about RF tuning and impedance matching for PCB tracks
  3. Sleep current of ~2.4uA in Standby mode!
  4. Powered from the USB port
  5. Microchip MCP1700 3.3V LDO
  6. Inbuilt CH340E USB-UART converter. No need for any extra adapter. Serial comm works directly via the USB. CH340E does not require external crystals.
  7. SWD programming via the Cortex debug pin

Firmware for the board

  1. Use Microchip Studio for firmware programming
  2. Install/Update Microchip ASF 3.48
  3. Open a New Example Project, search for SAMR34
  4. Use 'LoRaWAN Mote Application - SAMR34 Xplained Pro' project
  5. Be sure to choose MLS 1_0_P_4 from ASF version 3.48 (requires LoRaWAN core 1.0.2)
  6. Newer version of MLS 1_0_P_5 requires LoRaWAN core 1.0.4, which may not be compatible with many networks.

Snapshots:

  1. PCB Front Front PCB
  2. PCB Back Back PCB
  3. Finished product Product

Credits

Atul Kumar (Third Year student, AY2020-2021)
Jithin Saji Isaac (Assistant Professor, Dept. of EXTC)
Don Bosco Institute of Technology, Mumbai
Feb 2021