| 1 | A design scheme of motion control system based on parallel port of computer was proposed. | |
| 2 | The article discusses parallel interface (PI) of microcomputer and detection method of LCD module through the PI. | |
| 3 | Because PC has only one parallel interface, it can directly control only one stepping motor. | |
| 4 | Most of them will work fine regardless of whether the printer is attached via USB/Parallel or via a network. | |
| 5 | The feature and usage of enhanced parallel port are introduced in this paper. Design of data acquisition system is also discussed. |