# E-Card; a sample zk-Device

The E-card is an IoT hardware business card that integrates three devices: a thermometer, a hygrometer, and a smart button. This device combines essential environmental sensing and interactive capabilities into a compact form.

<figure><img src="/files/6sMtnZLnlI3rgJKhRH7T" alt="" width="375"><figcaption></figcaption></figure>

<figure><img src="/files/sJRoUa9zCIB3IuxiB6Hv" alt="" width="375"><figcaption></figcaption></figure>

The E-card can be powered up using a Type-C USB connector, ensuring easy and universal compatibility with modern power sources. Additionally, it can be configured and managed via the FidesInnova mobile app, providing a seamless setup and user experience.

<figure><img src="/files/X385BUHlfTBwXzJpA1hv" alt=""><figcaption></figcaption></figure>


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