Waveshare 4.2 Inch Passive NFC e-Paper Ink Screen ESL Wireless Power Supply Communication Electron

Working principle:
When you need to refresh the display, you can use NFC-enabled smartphones or card readers, near the screen for wireless power supply, and refresh the display content.
Applicable scene:
Shopping mall price tags, asset equipment tags, electronic shelf tags, conference name tags, etc.
Parameter:
Power supply: wireless power supply Display color: black, white Dot pitch: 0.212x0.212 Resolution: 400x300 Gray level: 2 Refresh time: 4s (excluding data transmission time) Display size: 84.8mmx63.6mm Dimensions: 105.1mmx94.1mm Viewing angle: >170?￣
Supported Smart Phones:


Package includes:
1 x 4.2inch NFC-Power e-paper 1 x Double-sided foam tape