Allterco Robotics has added a new IoT motion sensor, the Shelly Motion, to its Shelly product line that I believe many people will find useful in their smart home designs.
I recently wrote about the line of Shelly IoT relays. Shelly smart home products [https://shelly.cloud/] are manufactured by Allterco Robotics, one of seven companies that make up the holding company Allterco, whose headquarters is in Sofia, Bulgaria.
Allterco has 20 years of experience in mobile value-added products and services. Allterco is expanding beyond the telecommunications industry and is now focusing on the development and distribution of IoT products and solutions.

Allterco Robotics introduced its Shelly line of smart home IoT products in 2018. Their products are sold in 120 countries around the world and they opened an office in the U.S in 2020. The complete Shelly line of smart home products available in the U.S. can be found on the Allterco Robotics website here.
For those that missed that article they can find it here. I found Shelly relays to be excellent smart home problem solvers that can be used for:
Capturing button presses or other contact closure inputs
Controlling devices that are triggered through a contact closure; such as many garage door openers
Converting conventional light switches, or even a table lamp, into a smart fixture

Energy monitoring

Motion sensors are typically used by security systems. A primary use for a motion detector in a residential setting is to act as a backup for intrusion detection in case an intruder somehow bypasses sensors placed on doors and windows. In other cases, there simply may be too many exterior doors and windows in a home to add sensors to each one, so motion sensors are used to cut down on the system’s expense.

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