RM3100 DroneCAN Compass
Introduction
The RM3100 DroneCAN Compass Node uses the PNI RM3100 Magnotometer and sends compass messages over DroneCAN back to a flight controller. The node works on a regular DroneCAN bus and is completely plug and play.
Features
STM32L431 Processor - Fast and Capable
PNI RM3100 Magnetometer - Highly accurate and low cost
Over and Under Voltage Protection - Prevents adverse readings during surges
Over Current Protection - Prevents CAN bus interference in case of node failure
Reverse Polarity Protection
ESD Protection
Enable-able CAN Terminating Resistor
Pixhawk Standard JST-GH Connector
Pads for I2C, Serial and CAN Interfaces Exposed
Specifications
Typical 22mA (4.5 - 5.5 V)
25 x 25 mm, ~ 6g Mass
M2 Mounting Holes
Temp Range: -40 °C to +85 °C
Pinout
The JST-GH 4 Pin connector on the top of the board is pinned out using the Pixhawk convention:
1
5V
2
CAN H
3
CAN L
4
GND
Parameters
The following parameters should be used for the Flight Controller. For an initial set up, plug the Node into CAN1 on your flight controller and set the following parameters.
CAN_P1_DRIVER
1
CAN_D1_PROTOCOL
1
For advanced compass configurations on ardupilot, refer to these instructions.
Mechanical
Mechanical design of the PCB and STEP file.
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