Spark Analyzer is a versatile ESP32-powered device tailored for enhancing project development and debugging processes. It is fully compatible with USB-C Power Delivery (UCPD) and further enhanced by a Programmable Power Supply (PPS) feature, allowing for precise control and management of power. Its compact design facilitates inline integration with existing setups, providing essential insights and control over power delivery. Equipped with WiFi and BLE, Spark Analyzer offers wireless connectivity, enabling developers to remotely monitor and adjust voltage levels, log data, and analyze power consumption through a user-friendly smartphone interface or their own custom application.

Features

1. Power Control and Analysis with PPS and PD: Spark Analyzer excels in power management with its Programmable Power Supply (PPS) and Power Delivery (PD) capabilities. Precisely control voltage from 3.3 VDC to 21 VDC at 20 mV resolution and set current limits up to 3 A with 50 mA resolution with PPS, or use PD for adjustable voltage output options (5 VDC, 9 VDC, 15 VDC, 20 VDC). Combined with its current sensor, it allows for accurate current draw measurements, essential for understanding power usage in your projects.

2. Wireless Control: Untether your development process with Spark Analyzer’s wireless capabilities. With both WiFi and BLE, this tool allows remote, app-based control and data logging. Users can adjust settings and monitor data from a distance, offering a more flexible development experience.

3. Open Source & Programmable: As an open-source device, Spark Analyzer offers unmatched versatility. It is fully programmable, allowing you to tailor its functionality to your specific applications. This customization extends to software and hardware, opening up endless possibilities for creative and efficient project development.

4. Compact Design: Designed for convenience, Spark Analyzer’s compact and sleek form factor allows for seamless integration into existing setups. Its compatibility with UCPD power sources and inline integration capability minimizes the need for additional equipment or extensive redesign, making it a versatile and user-friendly addition to any development environment.

5. Safety: Safety is crucial when working with electricity and is at the heart of Spark Analyzer. An integrated output FET allows for software-programmable current limits that switch off the power in high-current scenarios.

Spark Analyzer Mobile App

Spark Analyzer Mobile App is currently available for Android, and iOS support is available via RemoteXY. These apps simplify monitoring and controlling Spark Analyzer power delivery with these key features:

• Voltage Selector: Quickly choose from different voltage levels (5 VDC, 9 VDC, 15 VDC, or 20 VDC) using a user-friendly selector.
• Output Toggle: Conveniently turn the power output on or off conveniently with a toggle switch.
• Current Logging: Save current draw as a .csv file.
• Current Limit: Ability to set a software current limit as a safety feature.
• Real-time Display: View current set point, current draw, and output enable in real-time on your phone.

Testing for Performance

Spark Analyzer has been rigorously tested to ensure optimal performance:

• Max Current Test: Under a constant load of 3 A at 9 VDC, Spark Analyzer delivered robust power without issues.

• Max Voltage Test: At a maximum voltage output of 20 VDC with a 1.5 A load, Spark Analyzer remained reliable.

• Thermal Performance: Spark Analyzer maintains safe temperature levels even under demanding testing conditions.

These tests confirm Spark Analyzer’s reliability, safety, and efficiency under real-world conditions.

Flexible Low-Cost Portable Power Supply

Spark Analyzer is designed for mobility, compatible with PD power banks and wall warts. It is suitable for a variety of environments, especially where traditional power sources are not practical.

Power Consumption Analysis

The power consumption analysis feature allows for monitoring and analyzing current usage. This helps in assessing energy efficiency and identifying maintenance needs, contributing to the health and longevity of projects.

Home Assistant Integration using Matter

Spark Analyzer’s ESP32 chipset, equipped with WiFi and BLE, ensures seamless integration using Matter with other smart home devices. In the demo above, you can see Spark Analyzer integrated into Home Assistant, allowing you to use your Home Assistant-integrated devices to control Spark Analyzer and even enables voice commands.

Designed for RF Performance

Spark Analyzer is optimized to leverage ESPNOW, which enables efficient peer-to-peer communication over a large distance, up to 220 meters. The ability to manage multiple Spark Analyzers underscores its potential as a central hub for sophisticated home automation systems, enabling users to create seamless and interconnected smart home environments.

Specifications

Power

• Negotiable Power Delivery: Options of 5 VDC, 9 VDC, 12 VDC, 15 VDC, 20 VDC; max 5 A (100 W at 20 VDC). It is also PPS compatible up to 21 VDC.
• USB Type-C Port: For power delivery and integrated JTAG programming.
• ON Semiconductor FUSB302MPX: Programmable USB Type-C control and USB PD communication.
• ESD Protection: On D+/D-/CC1/CC2 pins.
• Texas Instruments TPS62175DQCT: 3.3 VDC 0.5 A max output DC-DC Step-Down Converter.
• Power Output: 3.5 mm, 2-position terminal block.

I/O Configuration

• GPIOs: 4 GPIOs (I2C, UART, SPI compatible).
• Power Pins: 1x 3.3 VDC and 1x GND.

Microcontroller

• Model: ESP32-C3FH4 with 40 MHz crystal.
• Wi-Fi: 802.11b/g/n.
• Bluetooth: BLE 4.2.
• Flash Memory: 4 MB.

Interface

• 3x LED Indicators
  • Power On
  • Output Enable
  • Programmable LED/Debug
• Buttons
  • Reset
  • Programmable Button/Debug

Programming

• Integrated JTAG Controller: For programming.
• USB-C: Built-in USB JTAG programmer (ESP32-C3), compatible with Arduino. Select ESP32-C3 Dev Board.

Output

• Current Output: CC6904SO-10A.
• Current Sensor: Hall Effect Current Sensor.
• Output Enable: DMP3017SFG-7 FET.

Comparisons

Support & Documentation

Spark Analyzer is accompanied by comprehensive documentation and support to ensure users can maximize its potential. Here’s what’s available:

• GitHub Repository: The Spark Analyzer GitHub repo offers detailed documentation, including code, schematics, 3D enclosure files, and usage instructions. This open-source repository allows users to dive into the technical details, customize, and even contribute to the project.

• User Support: For personalized assistance or inquiries, users can reach out via the "Ask a Technical Question" form, or interact with our GitHub repository. Whether it’s troubleshooting, technical questions, or feedback, the support team is equipped to help.

Manufacturing & Logistics

Our designs have undergone rigorous testing and verification to ensure optimal performance. We’ve already produced a pilot batch of Spark Analyzers, and our manufacturing partners are geared up for full-scale production.

Fulfillment & Logistics

After assembly and testing, we will box up each Spark Analyzer and send them to Crowd Supply’s fulfillment partner, Mouser Electronics, who will handle distribution to all backers. You can learn more about Crowd Supply’s fulfillment service under Ordering, Paying, and Shipping in their guide.

Risks & Challenges

The development and production of Spark Analyzer involves several challenges and risks:

1. Hardware Design Confidence: After a year of development, the hardware design of Spark Analyzer has been refined and is now stable. The focus has been on ensuring reliability and functionality in various use cases.

2. Software Development: As the mobile app is the first app developed for this project, there might be initial bugs or issues. We are committed to supporting and addressing any bugs promptly. Alternate solutions like RemoteXY are available for iOS and Android users, providing flexibility and ensuring continuous functionality.

3. Manufacturing and Silicon Shortage: There are always risks with manufacturing. However, we have experience and a network of suppliers, and have made efforts to mitigate these risks. We are prepared to navigate any challenges, and will keep backers informed if any shipping dates need to change.