This expansion module connects to any MaxxECU via CAN to add four pulse inputs, twelve analog 0-5V inputs, four 12V outputs, and four H-bridges. Housed in a compact, IP68 rated, powder coated aluminium case with a SuperSeal 1.0 Connector, this is built for reliability in the every environment. The module communicates via CAN and appears directly inside MTune with any MaxxECU.
MaxxECU Expansion Module Analog Inputs
Accepts 0-5V analog or digital signals, max 24 V.
Digital threshold: 3 V. Selectable 2.5 kΩ 5 V pull-up resistors.
Analog update rate: Selectable up to 2 kHz. Input resistance: 200 kΩ.
Switches/buttons and other slow signals in digital mode.
Note: Ethanol sensors, etc. are not supported here - use PULSE inputs instead.
MaxxECU Expansion Module PULSE Inputs
Accepts digital or VR signals, max 200 V, up to 30 kHz.
Input resistance: 62 kΩ.
Selectable digital, VR input or custom thresholds.
1kHz max update rate transmitted to the ECU.
MaxxECU Expansion Module 12V outputs
12 V sourcing output for general loads.
Active = 12 V, off = floating.
Max 5A continuous. Protected against overload, short circuit. Flyback protection 30V.
PWM up to 20kHz.
Update speed 2ms (GEN1), 0.5ms (GEN2) (depending on CAN-bus load).
MaxxECU Expansion Module H-bridge outputs
12 V push-pull (half-bridge) output for motors or loads.
Active = 12 V, off = ground.
For bidirectional motors (e.g., throttles): connect the load between two H-bridge outputs.
For general loads: connect the load between one H-bridge output and ground.
Overload and short-circuit protected. PWM current-limiting.
Max 7.5A–15 A (selectable), 10A continuous.
PWM up to 20kHz.
Update speed 2ms (GEN1), 0.5ms (GEN2) (depending on CAN-bus load).
MaxxECU Expansion Module Technical Information
Black powder-coated aluminium enclosure with IP68 rated environmental protection.
SuperSeal 1.0 automotive connectors for reliable motorsport-grade wiring.
Seamless CAN integration with MaxxECU and MTune, requiring no manual CAN message configuration.
All inputs and outputs are protected against over voltage, reverse polarity, overload, and short circuits.
12 analog inputs accepting 0–5 V analog signals or up to 24 V digital inputs with selectable pull-up resistors.
PULSE inputs supporting digital or VR sensors up to 30 kHz with configurable input modes and thresholds.
Selectable analog input sampling rates of up to 2 kHz, with pulse data transmitted to the ECU at up to 1 kHz.
Four high-current 12 V sourcing outputs, capable of 5A continuous per channel with integrated flyback protection.
Four high-current H-bridges supporting bidirectional motor control or high-power outputs, with selectable 7.5–15 A current limiting and 10 A continuous capability.
Up to 4 modules with easy-to-use pre-defined configuration on GEN2 ECUs, 1 module on GEN1 ECUs. Any number of modules can be used on any ECU brand with user-defined CAN configuration.
CAN 250kbit to 1mbit (CANFD for future use).
ARM dual core CPU.
Current consumption: 45mA.
Weight: 195g.
80x138x35mm including protruding connectors.
Extends ANY MaxxECU over CAN with the following inputs and outputs:
4 PULSE inputs
12 analog 0–5V inputs
4 12V outputs
2 H-bridges