A few images to illustrate my recent work
  
  PCB to interface Notecard with M5 Stack
  
  Early prototype of Notecard with M5 stack
  
  GUI for spectrophotometer data capture and processing
  
  Sensor control box using Notecard and Circuitpython
  includes gas pumps and valves, methane sensor, pH and temperature probe interfaces
  
  Testing LTE connectivity in the mountains with a directional antenna (spot the rainbow)
  
  Leveraging unconventional battery technologies




