I'm Renato Brant — a technology enthusiast, maker, and lifelong learner with roots in Mechatronics Engineering.
My professional career is focused on Global Business Development, Strategy, Automotive Technology, GNSS, ADAS, and high-precision positioning systems, but this GitHub space is where I reconnect with my engineering soul.
Here I share hands-on projects involving:
- Embedded systems
- ESP32 / ESPHome / Home Assistant
- Smart home automation
- Hardware prototyping
- Audio electronics
- Camera and media tools
- Open-source learning projects
Most of these projects started from a real need in my own home, studio, car, church, or workshop — and then became something worth documenting and sharing.
Legacy hardware + modern connectivity
DIY electronics + practical use cases
Smart home + real-world automation
Engineering education + Portuguese-speaking makers
I enjoy projects that make old equipment smarter, everyday systems more useful, and complex engineering concepts easier to understand.
A professional 9-zone smart irrigation controller powered by ESP32-C6, designed for Home Assistant integration through ESPHome.
Key highlights:
- 9 irrigation zones
- ESP32-C6 platform
- MCP23017 I/O expansion
- MOC3041 opto-isolated triac drivers
- BT136S / TO-252 triac-based AC switching
- 24VAC irrigation valve control
- Surge and inrush protection architecture
- Local scheduling architecture
- Offline-capable design direction
- Field test and validation phase
This is one of my most complete hardware projects, combining PCB design, firmware, AC switching, enclosure planning, and smart home integration.
A bridge between legacy RS232 equipment and modern smart home platforms.
Designed to control devices such as projectors, AV receivers, and professional equipment using ESP32-C6 and bidirectional serial communication.
Use cases:
- Projector automation
- AV system control
- RS232 to Home Assistant bridge
- Legacy equipment modernization
An ESPHome-based serial control project focused on making serial devices easier to integrate into smart home dashboards and automations.
A DIY hardware controller for OBS Studio, built around an Arduino Pro Micro.
Features:
- HID keyboard emulation
- 8-button analog matrix using voltage dividers
- LED feedback with 74HC595 shift-register control
- Dedicated buttons for streaming, recording, and audio control
- Designed for video production and live streaming workflows
This project combines hardware simplicity with practical studio automation.
A DC power monitoring tool designed for audio amplifier testing.
Features:
- Real-time voltage monitoring
- Current monitoring
- Power monitoring
- ADS1115 voltage measurement
- ACS712 current sensing
- Useful for observing voltage drops and current behavior during amplifier tests
This project came from my audio amplifier builds and the need to better understand how power supplies behave under load.
A precision sim-racing brake controller that replaces potentiometer-based pedal sensing with a pressure-based load cell system.
Core components:
- Load cell sensor
- HX711 amplifier
- MCP4725 DAC output
- OLED display
- Adjustable sensitivity
- Adjustable response curve
- Pressure-based brake response
The goal is to improve brake feel, consistency, and realism in racing simulator setups.
An Arduino-based camera trigger system for photography experiments.
Features include:
- High-speed lightning photography trigger
- Auto-threshold light sensor mode
- Sound trigger
- Time-lapse
- Long exposure control
- Interval timer
- EEPROM-based settings storage
Originally developed as an experimental photography tool, this project reflects my interest in combining electronics with creative media.
🎧 Voxyl
A modern social podcast aggregator that merges RSS podcast feeds with social curation.
Concept features:
- Podcast aggregation
- Shared playlists
- Social listening discovery
- Guest and community-driven audio curation
- Web app beta concept
- Community-oriented podcast discovery
Voxyl explores how podcast listening can become more social, discoverable, and community-centered.
A companion/community space related to the Voxyl podcast ecosystem.
My goal is to inspire Portuguese speakers — especially young Brazilians — to explore technology, electronics, engineering, and software development.
I believe engineering becomes less intimidating when people can see real projects being built step by step.
If one project, one video, or one repository helps someone say:
“Maybe I can build this too.”
Then it was worth sharing.
Power Supply • Audio Amplifier • Potentiometer • Protection Circuit
Beginner Electronics • Class A • Transistors • Class AB Amplifiers
18650 Cells • Battery Basics • Pack Design • Portable Power
Build. Share. Inspire.
I do not share projects because they are perfect.
I share them because real engineering is iterative — it starts with curiosity, continues through mistakes, and becomes valuable when others can learn from it.
Even if only a few people are impacted, it is worth it.