print charmap

--prints chars from 0 to 255

monitor = peripheral.wrap("right")
monitor.clear()
monitor.setTextScale(1)
for i = 0, 15 do
    monitor.setCursorPos(1,i+1)
    line = ""
    for ii = 0, 15 do
        line = line..tostring(string.char( 16*i + ii ))
    end
    monitor.write(line)
end