function logEncoder(knobName, config)
    print(knobName)
    print("default hw id A: " .. arduino .. config.pinA)
    print("default hw id B: " .. arduino .. config.pinB)
    print("event: " .. config.event)
    print("- - - - - - - - - - -")
end

-- assign a string to a integer of encoder direction (0,1)
function leftRight(direction)
    return direction == 1 and "_Right" or "_Left"
end

local default_acceleration = 3
local default_debounce = 4

-- How to add Rotary Encoders:
-- https://siminnovations.com/wiki/index.php?title=Rotary_encoder_connection_tutorial
-- https://siminnovations.com/wiki/index.php?title=Hw_dial_add
-- hw_dial_add(hw_id_a, hw_id_b, callback)
function encoder(knobName, config)

  type = "TYPE_1_DETENT_PER_PULSE"

  local defaultPinA = arduino .. config.pinA
  local hw_id_pin_a = user_prop_add_hardware_id("Encoder " .. knobName .. " pin A", defaultPinA, knobName .. " pin A")
  
  local defaultPinB = arduino .. config.pinB
  local hw_id_pin_b = user_prop_add_hardware_id("Encoder " .. knobName .. " pin B", defaultPinB, knobName .. " pin B")

    hw_dial_add(
      tostring(hw_id_pin_a), 
      tostring(hw_id_pin_b), type, default_acceleration, default_debounce, function(direction)
        event(config.event .. leftRight(direction))
    end)
end

function setupEncoders()
   -- Run the four encoders through the assignment function
    for knobName, config in pairs(knobs) do
      logEncoder(knobName, config)
      encoder(knobName, config)
    end
end