RS-232 serial call response and HMI display for Arduino

About the project

The Arduino board is used to communicate with the external device through RS-232. The device responses are resolved by the Arduino and outputted to the human-machine interface (HMI).

Brief description

Suggested board:

1. Arduino MEGA 2560 Rev3

Purpose:

1. Send command to the external device through RS-232.
2. Get responses from the device through RS-232.
3. Send the device responses to the HMI through Serial1.
4. Arduino can monitor the device responses from the serial monitor.

Suggested hardware setup:

1. A "RS-232 to TTL module" is used to convert the RS-232 signal because Arduino MEGA 2560 Rev3 does not support RS-232 directly.
2. A HMI with UART interface is used to show the device responses through the Serial1 channel of the Arduino.

Usage

The code is in RS-232-SerialCallResponse-And-HMI-Display.ino.

License

Distributed under the MIT License.

Contact

Author: Dr. Hsien-Ching Chung

ORCID: https://orcid.org/0000-0001-9364-8858

Project Link: https://github.com/HsienChing/RS-232_serial_call_response_and_HMI_display_for_Arduino

Acknowledgements

H.C. Chung thanks all the contributors to this project for their valuable discussions and recommendations, especially Jung-Feng Lin, Hsiao-Wen Yang, Yen-Kai Lo, An-De Andrew Chung.

This work was supported in part by Super Double Power Technology Co., Ltd., Taiwan under grant SDP-RD-PROJ-001-2020.