I have been working on revision 2 of the LRMS boards. Component placement is completed and I will be routing 
Transceiver and gas sensor boards.

• All  board dimensions have been updated to 90mm x 70mm (LxW). This supports inexpensive 70mmx90mm prototyping boards.
• Connectors have been changed to 2x10 row connectors and aligned on 2.54mm spacing from board edges.
• Added a new board - LRMS Environmental Gas Sensor. This a design based on my original Rev 1  test board.

LRMS LoRa Transceiver R2

Revision 2 :

• uSD card connector for data logging

• JST connector for connection to LRMS MPPT Solar Power Module

• Reverse power  polarity protection

LRMS Environmental Gas Sensor

• Spec Sensors Electrochemical gas sensor array

• 3.0V Lithium Cell or 3.0V LDO regulator

•  Ultra low power op-amps for
• I2C bus connector
• UART connector

LRMS MPPT Solar Power Module

• J7 & J8 JST connectors changed to 5 pins. J7 is for I2C bus interface and J8 is for INA3221 status.