UART
What is the Universal Asynchronous Receiver-Transmitter (UART)?

| Abbr. | Name | Description |
|---|---|---|
| Rx | Receiver | Serial data received. |
| Tx | Transmitter | Serial data sent. |
| GND | Ground reference | Ground electrical reference. |
Important

| Abbr. | Name | Description |
|---|---|---|
| Rx | Receiver | Serial data received. |
| Tx | Transmitter | Serial data sent. |
| GND | Ground reference | Ground electrical reference. |