MR-VMU-Tropic (Vehicle Management Unit) is an Open-Source base board designed around the NXP i.MX RT1064 MCU.
| MR-VMU-Tropic Side view | MR-VMU-Tropic Top view |
|---|---|
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MR-VMU-Tropic is capable of running autopilot software for unmanned vehicles such as:
- Drones
- Rovers
- Boats
- And more
The MR-VMU-Tropic supports multiple Autopilots, please check the individual guide below
Tropic VMU also supports Zephyr RTOS with most of it's peripherals enabled.
Note
We're still in the process of upstreaming code please check the open pull requests in the corresponding projects
MR-VMU-Tropic design is based around the NXP MIMXRT1064DVJ6B which provides:
- Cortex-M7 600MHz
- 1024K RAM (512 Tightly coupled)
- 4MB Flash
- 100Mbps Ethernet
- USB HS 480Mbit/s
- SD Card interface
MR-VMU-Tropic board consisting of:
- Bosch BMI088 IMU
- Bosch BMM350 Magnetometer
- Bosch BMP390 Barometer
- TDK InvenSense ICM-45686 IMU
- CAN-FD with a NXP TJA1462ATK CAN Transceiver
- 100BASE-T1 Ethernet using the TJA1103
- RGB Led
With connectors for:
| Name | Connector Type | Functionality | Pinout |
|---|---|---|---|
| GPS | 10-pin JST-GH | GNSS module connection | VCC, TX, RX, SCL, SDA, SAFETY_SWITCH, LED, VDD_3V3, BUZZER, GND |
| UART + Handshake (x2) | 6-pin JST-GH | Serial communication with flow control | VCC, TX, RX, CTS, RTS, GND |
| AUX Multi-function | 6-pin JST-GH | UART, PWM, Quadrature decoder, Crossbar trigger | VCC, TX, RX, GPIO/XBAR, GPIO/XBAR, GND |
| Power Module | Molex Clik-Mate 5024430670 | Power input and monitoring | V+, V+, SCL, SDA, GND, GND |
| I2C | 4-pin JST-GH | Sensor communication | VCC, SCL, SDA, GND |
| CAN-FD | 4-pin JST-GH | CAN-FD bus communication | VCC, CAN_H, CAN_L, GND |
| Digital Receiver | 4-pin JST-GH | ELRS, CRSF, SBUS input | VCC, TX, RX, GND |
| ESC Header (x2) | 8-pin JST-SH | Up to 8x DShot ESCs | NC, GND, Telemetry, PWM1–PWM4 |
| Ethernet | 2-pin JST-GH | 100BASE-T1 Ethernet | TRX+, TRX- |
| SPI | 8-pin JST-GH | Sensor/OSD interface | VCC, SCK, MISO, MOSI, CS, DRDY, nRST, GND |
| Pixhawk Debug Full | 10-pin JST-SH | SWD + Debug UART | VREF, TX, RX, SWDIO, SWCLK, SWO, NC, NC, nRST, GND |
Some of the JST-GH connectors pinout follows the DS-009 connector specification
MR-VMU-Tropic rev.D schematics
These are the production files used for rev.D of MR-VMU-Tropic