Technology

Meet the PwrTool 500: Your New Go-To Home Assistant Power Monitor at Just $149!

2025-09-01

Author: Nur

Introducing the Game-Changer: PwrTool 500

Voidbox Industries is shaking up the tech world with the launch of their exciting crowdfunding campaign for the PwrTool 500! Designed by industry innovator Chloe Madison, this high-tech power and battery monitor is set to revolutionize how we manage energy consumption in our homes.

Unleashing the Power of Open Source

The PwrTool 500 isn't just another product—it's a powerful, open-source monitoring system tailored for off-grid energy setups. With its ability to effortlessly integrate into Home Assistant, it's perfect for enthusiasts looking to customize their energy solutions using ESPHome or personal firmware. Whether you’re handling 12V or 48V DC systems, the PwrTool 500 is engineered for high performance, managing peak currents of up to 500A across a wide voltage range of 6V to 60V DC.

Brilliant Features at Your Fingertips

First unveiled about a year ago, the PwrTool 500 boasts an impressive design utilizing the renowned Texas Instruments INA238 16-bit power monitor chip and the cutting-edge Voidbox FLIP_C3 Espressif ESP32-C3 microcontroller board. It offers not only power monitoring capabilities but also real-time temperature and humidity readings. Equipped with a 45W N-channel MOSFET, users can easily control lighting and loads, plus expand with Qwiic/STEMMA QT compatible sensors or connect multiple PwrTool 500 units.

Why Choose PwrTool 500?

Conventional smart shunts often trap users within proprietary ecosystems, restricting access to vital data. PwrTool 500 changes the game with its fully open hardware and software. Enjoy unprecedented access to sensors, firmware, and GPIO (General-Purpose Input/Output), allowing you to tailor it precisely to your needs without any pesky vendor lock-in.

Seamless Integration and Community Collaboration

Connecting to your Wi-Fi is a breeze, and the PwrTool 500 automatically registers with Home Assistant thanks to its pre-flashed ESPHome firmware. With an intuitive design, it offers a header for easy switching between hot- and cold-side installations. Plus, the project proudly comes with open-source resources under the Creative Commons Attribution Share-Alike 4.0 license. Developers and enthusiasts can access detailed project files, including schematics and board layouts on its dedicated wiki!

Ready to Transform Your Power Monitoring Experience?

For just $149, the PwrTool 500 is not just a purchase; it’s an investment in smarter, data-driven energy management for your home. Don’t miss out on this opportunity to enhance your off-grid energy systems with one of the most robust and versatile monitors on the market!