Hand-Remote direct Rx Tx Buzzer

• Hand-Remote changes
  -- New firmware with Interrupts; No stall time
  -- Case top shifts left to allow XBee Shield Rx, Tx direct connection to Pins 2,3
  -- Buzzer wires directly to LCD pins and power is driven on digital output
  -- Fine tuned battery level meter
• Pump-Controller
  -- Case expanded to allow space for LM2596 Power Regulator Module ( money savings )
  -- Arduino lifted to allow USB to plug in over the top of the LM2596