This is an NFC-powered 2.9inch e-Paper Module, with 296x128 resolution. Users can transmit data from smartphone or NFC reader to e-Paper and refresh by NFC.
Features:
- No backlight required, e-Paper keep displaying the last content for a long time without power
- No power adapter required
- You can modify the display content by smartphone
- Compe with ABS case
- App is provided
Specification:
- Power: NFC-powered
- Resolution: 296x128
- Dot pitch: 0.138×0.138
- Refresh time: 2s
- Display color: black, white
- Viewing angle: >170°
NFC e-Paper Eval Kit 2.9"
2.9" NFC-Powered e-Paper Evaluation Kit
Comes with NFC-Powered e-Paper, NFC reader, Micro SD card, and essential accessories Ready-to-Use
2.9" 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
NFC Board Introduction
ST25R3911B NFC chip, STM32F103R controller,
OLED display, user buttons, and common used interfaces
- STM32F103RBT6
- Core: ARM® 32-bit Cortex™-M3
- Operating Frequency: 72MHz
- Operating Voltage: 2.0V-3.6V
- Package: LQFP64
- Memories: 128kB Flash, 20kB SRAM
- Communication Interfaces: 2 x SPI, 3 x USART, 2 x I2C, 1 x CAN, 1 x USB
- AD & DA Converters: 2 x AD (12-bit, shares 16 channels)
- ST25R3911B: NFC chip, aka AS3911B
- 23LC1024: SRAM, 1Mbit
- CP2102: USB TO UART converter, for debugging
- SPX3819: 3.3V voltage regulator
- 1.3" OLED: blue display, 128×64 pixels, SH1106 driver
- 4x user buttons:
- 2x user indicators
- MCU unused pins
- USB TO UART port
- Micro SD slot
- SWD programming interface
- NFC induction coil
- UART pin configuration
RXD: connected to RXD2 by default, changeable to RXD1 via 0Ω resistor
TXD: connected to TXD2 by default, changeable to TXD1 via 0Ω resistor
Refreshed by ST25R3911B NFC Board included in the Kit
Outline dimensions
Package Includes:
- 2.9inch NFC-Powered e-Paper x1
- ST25R3911B NFC Board x1
- Micro SD Card 16GB x1
- Micro SD Card reader x1
- USB-A to Micro-B cable x1
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