UARTs
Last updated
Last updated
The MR-CANHUBK3 contains 4 UART connectors (P2, P5, P24, P25)
P2 and P5 follow the Dronecode 6-pin UART standard. Pin 1 is able to supply limited 5V power to an external device such as a GPS module or sensor.
Connectors P2 and P4:
| Pin # | Signal | Specification |
|---|---|---|
1 | 5V | (Optional) Limited 5V Output |
2 | TX | 3.3V |
3 | RX | 3.3V |
4 | CTS | 3.3V |
5 | RTS | 3.3V |
6 | GND | 0V (GND) |
Connectors P24 and P25 are also 6-pin JST-GH. However, they are not fully compliant with the Dronecode standard since pins 4 and 5 are repurposed to be a second UART channel instead of the handshaking lines RTS/CTS. The pinouts are shown below.
Connector P24 (UART9/10):
| Pin # | Signal | Specification |
|---|---|---|
1 | 5V | Limited 5V Output (Optional) |
2 | TX (UART9) | 3.3V |
3 | RX (UART9) | 3.3V |
4 | TX (UART10) | 3.3V |
5 | RX (UART10) | 3.3V |
6 | GND | 0V (GND) |
Connector P25 (UART13/14:
| Pin # | Signal | Specification |
|---|---|---|
1 | 5V | Limited 5V Output (Optional) |
2 | TX (UART13) | 3.3V |
3 | RX (UART13) | 3.3V |
4 | TX (UART14) | 3.3V |
5 | RX (UART14) | 3.3V |
6 | GND | 0V (GND) |