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VMX-pi Hardware Reference Manual (version 1.10)
SPI Support
4 Comm DIO Channels can be configured for
SPI communication
Locking
Locking Power, FlexDIO and CAN connectors
Connectors
Micro-USB
Additional dedicated USB interface on VMX-pi
external interface
Table 1 VMX-pi Component Functions & Attributes
Technical Specifications
VMX-pi Technical Specifications are summarized in the table below. Note that certain specifications
may be improved over time due to firmware updates. For the most up-to-date technical specifications,
please see the "Technical Specifications" page at http://vmx-pi.kauailabs.com.
ELECTRICAL SPECIFICATIONS
Input Voltage:
Output Voltages:
Protection Features:
Communications Interface:
Power Connector:
USB Connector:
IMU PERFORMANCE SPECIFICATIONS
Note: Certain IMU performance specifications are only valid after a start-up gyroscope/accelerometer calibration
period, during which time the VMX-pi circuit board must be held still.
8Mhz SPI communication
supported
Helps ensure electrical circuits
are not affected by vibration
Enables remote access to IMU
data, and VMX-pi
configuration/firmware update
6-16V DC
5V, 3.3V for External Devices
5V for Raspberry Pi
Input Power Under-voltage Management
Output Power Current Limiting/Short-circuit Protection
Input Signal Over-voltage Protection
USB, I2C, SPI, CAN, UART
2-Pin JST VH Connector
USB Micro-B (can provide standalone power to VMX-
pi microcontroller)
5
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