A recent implementation of an e-ink display for memory care has sparked extensive discussion in the tech community about the broader applications of e-ink technology for both caregiving and general-purpose digital signage. The conversation has revealed significant interest in affordable, accessible e-ink solutions that bridge the gap between complex technology and practical everyday needs.
Memory and Technology Interface
The discussion has highlighted fascinating insights into how memory works, particularly in cases of anterograde amnesia. Community experts pointed to similarities with the case of Henry Molaison, explaining how certain types of memory can persist even when conscious recall is impaired. This understanding has important implications for how we design technology for memory care:
Studies showed that he could remember some things, just not consciously. So for example he would have warm feelings towards people who'd been caring for him despite not remembering them, and would also pick up card games more and more quickly as he played them repeatedly despite saying he didn't remember the game.
Market Demand for Simple E-ink Solutions
The community has identified a clear demand for simple, wall-mountable e-ink displays that can be easily configured with basic URL and WiFi credentials. Various use cases have emerged, from parish announcement boards to family calendars, suggesting a significant untapped market for non-commercial digital signage solutions.
Technical Solutions and Alternatives
Several community members have shared alternative technical approaches, including:
- The TRMNL project, which offers a hackable e-ink display solution
- Inkplate displays, which provide various sizes up to 10 with multi-color capabilities
- Pimeroni's selection of e-ink displays with integrated buttons and LEDs
- DIY solutions using Raspberry Pi and various e-ink modules
Key E-ink Display Solutions Discussed:
- BOOX Note Air2 Series: $500 USD
- TRMNL: Commercial solution with magnetic mounting
- Inkplate: DIY solution with sizes up to 10"
- Pimeroni: Various sizes up to 7.3"
Implementation Challenges
The discussion has revealed several key considerations for e-ink implementations, particularly regarding refresh rates and user interface design. Some displays require up to 40 seconds for refresh cycles, which could be problematic for certain use cases. The community has also highlighted the importance of automatic content management features, such as message expiration dates and default content for network outages.
Common Requirements for Care-oriented E-ink Displays:
- Long-term display capability
- Network resilience
- Simple interface
- No backlight requirement
- Remote update capability
- Automatic content management
Future Implications
The conversation suggests a shift in how we approach technology development, with many advocating for designing technology from the perspective of elderly users and those with special needs first. This accessibility-first approach could lead to better technology applications for all users, while addressing critical care needs in our aging society.
Source Citations: MomBoard: E-ink display for a parent with amnesia