I've been exploring, learning, and figuring out Dot Pad over the past week and I have been having a lot of: "Wow!", "So cool!", and "that's amazing!" Feeling expressions.
Similar to most Braille displays, it was quick and easy to pair in VoiceOver Braille settings, and I was able to instantly have tactile graphics of app icons, controls, and images. There are light-grey pins that raise and dark-pins that are lowered to provide the layout and structure.
Along the lines of being Braille literate, there is a gap of being tactile graphic-literate. I was surprised to having difficulty making sense and figuring out what the tactile graphics represent because of having visual memory from being sighted until the age of 14 and learning and using tactile graphics in education.
I've been able to have sighted people (via in real life or remote video) walkthrough and describe the parts with context and details for me to understand the whole. This seems as transformative as from CLI > GUI or the touch screen being accessible. Blind people have access to visual assets, such as wireframes and screenshots, specifically the layout and structure is a tactile graphic that doesn't require making a mental picture, but adding context/details to the tactile graphics under ones finger.
It's been very fun, cool, and amazing to browse through either photos I have or ones out on the web to see what different things feel like (meaningful connection). The act of even wanting to see what visual things look like is a new thing because of now having a way to view it in an accessible way.
This has opened up a new spatial layout and structure world that has a learning curve, but I'm curious, excited, and happy to go along the tactile graphics journey with Dot Pad!