IoT Gateways
Connect industrial equipment to digital platforms. Gateways bridge protocols such as Modbus and CAN with MQTT and APIs, bringing telemetry and commands into operational software.
ENGINEERING FOR THE REAL WORLD
Embedded systemsconnectthe real world.
I design, build and integrate electronic products — from the circuit to field operation. Hardware, firmware, embedded Linux and IoT working together to solve real problems.
23+years of experience
Systemsin production
From hardwareto cloud
ABOUT
Systemsengineer.
I’m Marcos Aquino. For over 23 years, I have turned electronics and software challenges into connected products. My work spans hardware design, firmware, industrial protocols and the applications that make device data useful.
I work with product and engineering teams on technical assessment, integration and the evolution of deployed systems. My focus is on solutions that can be manufactured, maintained and used in real operating conditions.
Let’s discuss your product
Hardware
From schematic to production
Software
Firmware, Linux and cloud
Real products
Systems in everyday operation
EXPERIENCE
From transistorto cloud.
I connect electronics, operating systems, networks and applications in a coherent product architecture. Decisions at each layer account for the whole system: power, cost, connectivity, serviceability and operation.
- MCU / RTOS
- Embedded Linux
- IoT / Cloud
- Product integration
- Prototype to production
SELECTED WORK
Engineering in production.
IoT gateways, fire detection, vending machines and web platforms that connect equipment to operations.
Fire Detection
Detection and alarm systems with distributed sensors and centralized supervision. Integrated electronics, firmware and communications support event monitoring and operational visibility.
Vending Machines
Controllers and software for connected vending machines, with telemetry, remote management and payment integration. An engineering foundation for monitoring equipment and supporting fleet operations.
Web Platforms for Automation & Operations
Turn equipment, data and processes into a connected operation. I build web platforms to monitor assets, centralize alarms, control equipment and integrate systems across distributed sites. Dashboards, APIs and access controls organize information and give teams the tools to decide and act.
CONSULTING
From problemto solution.
I help companies and engineering teams define, build and recover electronic products and connected systems. Each engagement starts with the business context and produces technical decisions the team can put into practice.
Discuss your engineering challengeProduct architecture
Requirements, component selection, interfaces and device/edge/cloud responsibilities. Deliverables include architecture, risk assessment and an implementation plan.
Embedded systems
MCUs, RTOS, Linux, BSPs and drivers. Firmware development and troubleshooting, interface integration and field behavior analysis.
Connected products
Industrial protocols, MQTT, APIs and device management. Integration of telemetry, remote configuration and software updates.
Technical review and recovery
Assessment of existing systems, failure investigation and code and architecture reviews. Prioritized remediation and product evolution.
BRAZIL
Engineering grounded in operations.
Industrial, automation and retail projects that account for component costs, local manufacturing, existing systems and field support. Scope, decisions and documentation available in Brazilian Portuguese.
UNITED STATES
An engineering partner for product teams.
Remote support for engineering teams and manufacturers, with defined scope, English technical documentation, clear interfaces and reviewable deliverables. Architecture and integration focused on production readiness and maintainability.
WRITING
Notes from the workbench.
Dextro Cloud: from device to operations, with a cloud under your control.
How the platform and Dextro IoT Protocol connect equipment, commands and applications without depending on AWS IoT Core or Azure IoT Hub.
Explore Dextro Cloud
PRODUCT & ENGINEERING3 min read
The prototype works. Is the product ready?
What changes between a workbench demonstration and a system that can be manufactured, deployed and maintained in the field.
IoT & INTEGRATION2 min read
An IoT gateway needs to do more than translate protocols.
Connect existing equipment to a platform while preserving context, reliability and operational control.
SOFTWARE & OPERATIONS3 min read
From telemetry to control: web software that supports operations.
Why an automation platform needs to connect data, people and processes, beyond displaying charts.
FOUNDER STORY · PRODUCT ENGINEERING5 min read
Building Chave Digital from the board up
A first-person account of five years building electronics, software, an initial technical team and a production operation for connected security products.
CASE STUDY · EMBEDDED PRODUCT4 min read
Mais Pipoca: engineering a popcorn vending machine
A first-person case study of electronics design in 2015 and the work of turning an operating popcorn machine into a manufacturable product.
EMBEDDED LINUX · DEBUGGING5 min read
A repeatable Linux kernel debugging loop for embedded products
A practical workflow for isolating boot and driver problems, shortening root-filesystem iteration and using kernel-aware tools when logs are not enough.
CONTACT
What problem should we solve?
Tell me where your product stands, the main engineering challenge and what you need to deliver. We can discuss it in English or Portuguese and define a concrete next step.
Brazil & United States · Projects & consulting