Description
7.5inch Passive NFC-Powered E-Paper, No Battery, Wireless Powering & Data Transfer
7.5" NFC-Powered E-Paper
- Adopts Novel Passive NFC Technology
- No Battery Required
- No More Battery Life Trouble
Wireless NFC-Powered Display Refreshing
- Passive NFC Solution
- No Battery Required
- No Messy Wiring
- Stable Operation
How It Works
To Refresh The Display Content, Use A Smart Phone With NFC Function, Or An NFC Reader, Close To The E-Paper For Both Wireless Powering And Data Transfer
Refreshing Example
Refreshed By ST25R3911B NFC Board
Outline Dimensions
Wiki: www.waveshare.com/wiki/7.5inch_NFC-Powered_e-Paper
Package Content
- 7.5inch NFC-Powered e-Paper x1
FAQs:
Q: How does the e-paper display get power without a battery?
A: The e-paper display utilizes passive NFC (Near Field Communication) technology to receive power wirelessly from an NFC-enabled device (e.g., smartphone or NFC reader) during data transfer.
Q: What is the refresh time for the e-paper display?
A: The refresh time for the e-paper display is approximately 2 seconds, excluding the data transfer time, which depends on the amount of data being sent.
Q: Can I use my smartphone to update the content on the display?
A: Yes, if your smartphone has NFC capability, you can use it to both power and update the content on the e-paper display using a compatible app or NFC reader.
Q: What are the ideal applications for this battery-less e-paper display?
A: The display is well-suited for applications like price tags, asset/equipment tags, shelf labels, conference name tags, and other scenarios where frequent battery replacement is inconvenient.
Q: Does the product come with an NFC reader or do I need to purchase it separately?
A: The product listing mentions a 7.5-inch NFC-Powered e-Paper Evaluation Kit that includes an NFC reader, but it's unclear if the standalone display comes with one. It's recommended to check the product details or contact Evelta for clarification.
