Capivara Tool: The Brazilian Flipper Zero Rival That Raised $170K on Kickstarter

Hello HaWkers, the Brazilian technology community has just gained a reason to celebrate. A 100% national project managed to raise nearly 170 thousand dollars on Kickstarter to develop a hardware hacking device that promises to be a viable and more affordable alternative to the famous Flipper Zero.

Have you ever imagined having in your hands a tool developed by Brazilians, for Brazilians, that allows you to explore the world of IoT security and communication protocols?

What is the Capivara Tool

The Capivara Tool is a multifunctional hardware device for security testing and electronic prototyping. Developed by a team of Brazilian engineers and security researchers, the project was born from frustration with the high prices and difficulty of importing the Flipper Zero in Brazil.

Key Features

The device offers a robust set of functionalities:

Wireless Communication:

Sub-GHz frequency support (315MHz, 433MHz, 868MHz, 915MHz)
Bluetooth Low Energy (BLE) for IoT device analysis
NFC for reading and emulating tags
Integrated Wi-Fi for network analysis

Hardware and Connectivity:

High-performance dual-core processor
USB-C port for computer connection
Expandable GPIO for electronics projects
High-resolution color OLED display
Rechargeable battery with 8+ hours of autonomy

Software:

Open-source firmware developed in C and Python
User-friendly interface with intuitive menus
OTA (Over-The-Air) updates
SDK for custom module development

Why the Project Succeeded

The Kickstarter campaign exceeded its initial goal by more than 400%, demonstrating the pent-up demand for accessible security tools in the Brazilian and Latin American market.

Price Comparison

The price factor was decisive for the campaign's success:

Device	International Price	Price in Brazil (with taxes)
Flipper Zero	$169	$300 - $400
Capivara Tool	$89	$90 - $120 (forecast)

Context: The price difference can reach 70% when considering import taxes, shipping, and currency fluctuation.

Brazilian Project Differentiators

Beyond competitive pricing, the Capivara Tool presents specific advantages:

1. Local Support

Documentation in Portuguese
Active community on Discord and Telegram
Technical support in Brazilian timezone
Warranty and technical assistance in Brazil

2. Local Market Adaptation

Frequencies calibrated for Brazilian standards
Integration with local payment systems (NFC)
Analysis of protocols common in Brazil

3. Open-Source Philosophy

All firmware available on GitHub
Documented hardware schematics
Encouragement of community contribution

What You Can Do with the Capivara Tool

For security professionals and enthusiasts, the device opens a world of possibilities in authorized security testing and learning.

Legitimate Use Cases

IoT Pentest:

Vulnerability analysis in smart home devices
Electronic lock security testing
Alarm system auditing

Research and Education:

Study of wireless communication protocols
Development of academic projects
Information security training

Home Automation:

RF device control
Integration with automation systems
IoT solution prototyping

RF Signal Analysis Example

For developers interested in understanding how signal capture works, here is a simplified example of the process:

# Conceptual example of RF signal analysis
# This code demonstrates the basic capture structure

class RFAnalyzer:
    def __init__(self, frequency):
        self.frequency = frequency
        self.sample_rate = 2_000_000  # 2 MHz
        self.samples = []

    def capture_signal(self, duration_ms):
        """
        Captures RF signals for a determined period.
        Used for communication protocol analysis.
        """
        # SDR receiver configuration
        self.configure_receiver()

        # Sample capture
        samples = self.read_samples(duration_ms)

        # Basic ASK/OOK demodulation
        demodulated = self.demodulate_ask(samples)

        return demodulated

    def analyze_protocol(self, signal_data):
        """
        Identifies patterns in the captured signal.
        Useful for protocol reverse engineering.
        """
        # Preamble detection
        preamble = self.detect_preamble(signal_data)

        # Data extraction
        payload = self.extract_payload(signal_data, preamble)

        # Structure analysis
        protocol_info = {
            'preamble_length': len(preamble),
            'payload_size': len(payload),
            'encoding': self.detect_encoding(payload),
            'checksum_type': self.identify_checksum(payload)
        }

        return protocol_info

# Usage example for educational purposes
analyzer = RFAnalyzer(frequency=433_920_000)  # 433.92 MHz
signal = analyzer.capture_signal(duration_ms=5000)
protocol = analyzer.analyze_protocol(signal)

print(f"Detected protocol: {protocol['encoding']}")
print(f"Payload size: {protocol['payload_size']} bits")

This type of analysis is fundamental for security professionals who need to audit wireless communication systems.

Impact on the Brazilian Security Community

The success of the Capivara Tool represents more than a successful product. It symbolizes the maturity of the Brazilian information security community.

Growing Ecosystem

Events and Communities:

Growth of hardware hacking meetups
Greater participation in CTFs (Capture The Flag)
Increase in IoT security courses and workshops

Professional Opportunities:

Growing demand for IoT pentesters
New positions in connected device security
Startups focused on hardware security

Valued Skills

For those who want to enter this field, some competencies are essential:

Technical Knowledge:

Basic electronics and schematic reading
C/C++ and Python programming
Communication protocols (SPI, I2C, UART)
Radio frequency fundamentals

Soft Skills:

Analytical and methodological thinking
Clear documentation of findings
Rigorous professional ethics
Effective communication with teams

Ethical and Legal Considerations

It is essential to emphasize that devices like the Capivara Tool should be used exclusively for legitimate and authorized purposes.

Responsible Use

Allowed:

Tests on your own devices
Authorized academic research
Contracted pentests with defined scope
Learning in controlled environments

Prohibited:

Unauthorized access to third-party systems
Interception of communications without consent
Cloning of payment devices
Any activity that violates legislation

Important: Misuse of hacking tools can result in severe penalties under cybercrime laws and other applicable legislation.

The Future of Hardware Hacking in Brazil

The success of the Capivara Tool may inspire other national projects and strengthen the Brazilian technology ecosystem.

Project Next Steps

Short Term (2025-2026):

Start of scale production
Delivery to Kickstarter backers
SDK launch for developers
First community modules

Medium Term:

Expansion to other Latin American countries
Partnerships with educational institutions
Security certifications
Professional version with advanced features

Conclusion

The Capivara Tool represents an important milestone for the Brazilian tech community. It demonstrates that we have the capacity to develop internationally competitive high-technology products, even in highly specialized niches like security hardware.

For developers and security professionals, this is an exciting time. The availability of accessible and well-documented tools democratizes access to knowledge and opens doors to promising careers in IoT security and embedded systems.

If you're interested in security and hardware, I recommend you also explore our article about Web Workers and JavaScript Performance where we discuss advanced optimization techniques that can be useful when developing analysis tools.