Existing system responsibilities
Separate device control from account records, configuration and other application services. Identify which parts can change without requiring a complete application replacement.
Approach
Device integration
Connect new hardware to an existing system.
Integrate device firmware, electrical connections and application controls while preserving the services and interfaces that must remain compatible.
Hardware and application integration
- Interface compatibility
- Command handling
- Physical verification
Define what changes and what remains
Adding hardware to an existing machine or application requires an inventory of its interfaces and responsibilities. AUBRIX can develop the device firmware and control path within those constraints, including control release and interrupted sessions. Existing services can remain in place where they are outside the integration assignment.
Interface compatibility
Review voltage levels, connectors, protocols and message structures together. Component and module choices need compatible electrical characteristics, firmware support and an explicit substitution-approval process.
Control interruption
Specify responses to press, hold, release, repeated messages and lost connections. Define timeouts and stop commands for the actual device and intended use.
Engineering process
Project
process.
- 01
Assess the existing system
Identify devices, interfaces, services and physical outputs. Document what can be modified and what must remain compatible.
- 02
Specify commands and data
Define message fields, state transitions and responses, including invalid or stale input and reconnection.
- 03
Implement the connection
Develop the agreed path from application input to device action. Document configuration and interface assumptions so both ends can be reviewed.
- 04
Verify the complete interaction
Test normal use and relevant interruption cases. Where hardware is available within the assignment, check physical response alongside the messages exchanged.
Depending on the agreed scope
Project
deliverables.
- An interface and responsibility map
- Command and data specifications
- Agreed device or application integration changes
- Interaction test results and open issues
Test coverage depends on access to the systems and hardware. A functioning command path does not establish every surrounding feature or provide a measured latency guarantee.
Project experience
Related
projects.
Connected-device integration
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Project details
PCB design + embedded firmware
CAN keypad and relay control
The CAN keypad design separates operator input from relay outputs and includes key-release handling. PCB views alone do not establish hardware validation.
Project detailsTalk engineering
What hardware are you integrating, and which existing interfaces must it preserve?
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