test.lua

local component = require("component")
local sides = require("sides")

local rs = component.block_refinedstorage_interface

local targetAmount = 64
local items = {
    {name = "minecraft:iron_ingot"},
    {name = "minecraft:gold_ingot"}
}

while(true) do
    for i,stack in ipairs(items) do
        if(rs.hasPattern(stack)) then
            local rsStack = rs.getItem(stack)

            local toCraft = targetAmount;
            if(rsStack ~= nil) then
                toCraft = toCraft - rsStack.size
            end

            if(toCraft > 0) then
rs.scheduleTask(stack,1)
else
rs.cancelTask(stack)
end
        else
 print("Missing pattern for: " .. stack.name)
        end
    end

    os.sleep(5)
end