Pinouts
Telemetry Port
This pinout should be used for any serial port. Ports not supporting hardware flow control should leave the CTS and RTS lines floating. Cables should be 1:1 to the peripheral and TX / RX as well as CTS / RTS should be crossed on the peripheral side (e.g. a radio modem would have its RX port on pin2, TX port on pin 3, RTS on port 4 and CTS on port 5).
| Pin | Color | Signal | TTL/Voltage Level |
|---|---|---|---|
| 1 | red | VCC | 5V |
| 2 | black | TX | 3V3 |
| 3 | black | RX | 3V3 |
| 4 | black | CTS | 3V3 |
| 5 | black | RTS | 3V3 |
| 6 | black | GND | N/A |
Basic GPS port
This port is intended for combined serial plus I2C GPS units.
| Pin | Color | Signal | TTL/Voltage Level |
|---|---|---|---|
| 1 | red | VCC | 5V |
| 2 | black | TX | 3V3 |
| 3 | black | RX | 3V3 |
| 4 | black | I2C_SCL | 3V3 |
| 5 | black | I2C_SDA | 3V3 |
| 6 | black | GND | N/A |
CAN
Recommended CAN transceivers: TJA1051TK3/118 or LTC2875. Ensure o twist the wires. Please refer to the UAVCAN specification, section 7.2 for further details.
| Pin | Color | Signal | TTL/Voltage Level |
|---|---|---|---|
| 1 | red | VCC | 5V |
| 2 | black | CAN_H | |
| 3 | black | CAN_L | |
| 4 | black | GND | N/A |
I2C port
| Pin | Color | Signal | TTL/Voltage Level |
|---|---|---|---|
| 1 | red | VCC | 5V |
| 2 | black | I2C_SCL (pull-up on autopilot) | 3V3 |
| 3 | black | I2C_SDA (pull-up on autopilot) | 3V3 |
| 4 | black | GND | N/A |
SPI port
This port is optional and for external SPI sensors.
| Pin | Color | Signal | TTL/Voltage Level |
|---|---|---|---|
| 1 | red | VCC | 5V |
| 2 | black | SCK | 3V3 |
| 3 | black | MISO | 3V3 |
| 4 | black | MOSI | 3V3 |
| 5 | black | ~SS1 | 3V3 |
| 6 | black | ~SS2 | 3V3 |
| 7 | black | GND | N/A |
Analog Power Port
The CURRENT signal should carry an analog voltage from 0-3.3V for 0-60A as default. For high-power units the range should be 0-3.3V for 0-120A. The VOLTAGE signal should carry an analog voltage from 0-3.3V for 0-50A as default. The VCC lines have to offer at least 2.5A continuous and should default to 5.3V. A lower voltage of 5V is still acceptable, but discouraged.
| Pin | Color | Signal | TTL/Voltage Level |
|---|---|---|---|
| 1 | red | VCC | 5.3V |
| 2 | black | VCC | 5.3V |
| 3 | black | CURRENT | 3V3 |
| 4 | black | VOLTAGE | 3V3 |
| 5 | black | GND | N/A |
| 6 | black | GND | N/A |
CAN+Power port
Only in M10104 CAN PWR module
| Pin | Color | Signal | TTL/Voltage Level |
|---|---|---|---|
| 1 | red | VCC | 5.3V |
| 2 | black | VCC | 5.3V |
| 3 | black | CAN_H | |
| 4 | black | CAN_L | |
| 5 | black | GND | N/A |
| 6 | black | GND | N/A |