Features

• Direct data acquisition from energy meters
• High-precision measurement and data accuracy
• Support for IEC 62056-21 optical interface
• Wireless connectivity via Wi-Fi
• Zigbee IoT mesh protocol
• Seamless integration with Home Assistant
• Flexible power options: battery-powered or mains-powered
• Quick magnetic attachment — no screws or tools required

Applications

• Monitoring and analysis of energy consumption and generation
• Integration within smart home and IoT networks
• Deployment in industrial monitoring and control systems

Measurement

Meters commonly include an optical interface that allows reading data directly from the energy meter. Using this interface, ZiggyMeter can retrieve key parameters such as power consumption, current, and voltage. The exact set of available datapoints depends on the specific meter model.

ZiggyMeter does not measure power itself — it reads the values recorded by the meter. As a result, the data is as accurate as what your power supplier uses for billing, enabling precise expense calculations.

By contrast, solutions that infer usage by measuring line current and voltage inevitably introduce error relative to the meter’s own readings. Reading the meter via its optical interface is therefore the most reliable and accurate way to monitor energy usage.

The interface supports both consumed energy and produced energy (for example, from solar PV panels). This makes it ideal for installations that sell excess energy back to the grid, since it captures the same production and consumption figures the utility recognizes.

Communication

ZiggyMeter supports two communication options to fit different setups:

• Wi‑Fi: Connects to an existing network or can create its own Access Point (AP) for initial setup and standalone operation.
• Zigbee: Integrates with Zigbee coordinators and smart home platforms for low‑power, reliable mesh networking.

ZiggyMeter provides a built‑in web interface that lets you configure device settings, join Wi‑Fi networks, and verify live meter readings directly from your browser.

Antenna

The device features a detachable external antenna, offering better performance than typical internal PCB antennas used in many IoT appliances. You can easily replace or upgrade the antenna to match your installation and environment.

For locations where the meter cabinet blocks radio signals, an external antenna option improves connectivity and range. You can attach a larger external antenna and route it outside the cabinet to ensure reliable Wi‑Fi or Zigbee communication.

This flexibility helps maintain a stable link in challenging RF environments, such as metal enclosures or basements with weak signal coverage.

Power Options

ZiggyMeter offers flexible power options to suit different installations:

• AAA batteries: Operates using two standard AAA cells for simple, cable‑free deployments.
• Rechargeable batteries: Supports compatible rechargeable cells for reduced waste and convenient re‑use.
• DC power supply: Can be powered via a USB‑C cable from an external DC power supply, e.g., a mobile phone charger.
• Power banks: Can use external power bank via a USB-C socket enabling long-term operation even without a constant power supply from the grid.

Electric meters are often installed in locations without easy access to a constant power source — it’s common to find no wall socket near the meter cabinet. For such installations, ZiggyMeter can run on batteries or from an external battery pack connected via USB‑C, ensuring reliable operation even where mains power is unavailable.

API

The device provides a REST API, allowing users and developers to control and monitor various functions programmatically. Through the API, actions such as reading meter data, configuring settings, and triggering device operations can be performed securely and efficiently.

Upgrades

ZiggyMeter software updates are publicly released, introducing new features, expanding meter support, and addressing security issues. Each update includes a changelog detailing the changes.

Security

The firmware is developed within the European Union and is safeguarded using encryption keys. This protects sensitive data, such as Wi‑Fi passwords, from unauthorized access. The device regularly receives updates that address potential security vulnerabilities.

All update files are encrypted and digitally signed, ensuring that only authentic software can be installed and preventing third parties from introducing malicious code. The device’s initial production programming is carried out in the European Union.

No Cloud

The device is designed to operate independently and does not require any cloud connection. It functions fully without an internet connection or reliance on external services. This ensures that the owner remains in complete control of the device at all times. There is no risk of the device becoming unusable due to discontinued cloud services or manufacturer-controlled shutdowns. Its functionality remains reliable and fully under the user’s control for its entire lifetime.