Designing Accessible IoT Experiences — from inclusionhub.com by Be My Eyes
While not every IoT product is designed with accessibility in mind, it has the potential to enable people with disabilities to communicate with and through technologies in ways that were previously unavailable

Excerpt:

As we have seen, the proliferation of both devices and tools to make devices smarter can have major benefits for people with disabilities. However, when these users are not considered during the creation of products and apps, these technologies can end up widening the accessibility gap, rather than closing it.

The key to providing accessible experiences for as wide a range of users as possible is to include a variety of stakeholders in the design and testing phases of any device. By inviting people with disabilities–including visual, hearing, cognitive and other–into the process, designers can ensure that their needs are met up front, rather than having to backfill or find work-around solutions post-launch.