Learn about what I/O options you have and what they can do. To see which options are supported by each module, visit the Technical Specifications page.
| Type | Description |
|---|---|
| RS-232 | Standard way of communicating with locally attached external devices at up to 230 kbps. Standard is three wire: TxD, RxD, Gnd. |
| RS-485 | Industrial physical interface used for factory automation and long distance higher speed communications. Speeds up to 3 Mbps; half duplex standard, full duplex optional resistor termination. Powered by a rugged industrial driver. |
| Ethernet | Standard 10/100 Mbps Base-T full duplex; up to Gigabit on some controllers. Supports DHCP or static IP addressing along with the full range of IP settings and options. |
| USB | Can be used to connect to a PC or other host with a USB port. |
| WiFi via USB | Wireless connection via USB dongle. |
| GPIO | General purpose I/O, digital 0-3.3V signaling for output to individual indicators and input from discrete sensors such as switches or push buttons. |
| CAN Bus | Used in automotive communications buses, motor controls, and other industrial applications. |
| UART | 3.3V CMOS levels. |
| I2C | Used to connect to individual electronic sensor components, such as: temperature, humidity, accelerometer, etc. Can be used for general purpose GPIO expansion. |
| HDMI | HDMI Video output – display what you see on the LCD on a larger monitor/display. |
| Audio | Provides monaural microphone input and stereo audio output. |
| Real Time Clock | Battery backup clock. |
| Audio Beeper | Provides software controlled sounds. |
| Speaker | Audio output 1 Watt driver. |