- Description
Details
7.5inch Passive NFC-Powered e-Paper Evaluation Kit, No Battery, Wireless Powering & Data Transfer
NFC e-Paper Eval Kit 7.5"
7.5" NFC-Powered e-Paper Evaluation Kit
Comes with NFC-Powered e-Paper, NFC reader, Micro SD card, and essential accessories
Ready-to-Use
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
NFC Board Introduction
ST25R3911B NFC chip, AT32F413RBT7 controller,
OLED display, user buttons, and common used interfaces
- AT32F413RBT7
- Core: ARM® 32-bit Cortex™-M4F
- Operating Frequency: 200MHz
- Operating Voltage: 2.0V-3.6V
- Package: LQFP64
- Memories: 128kB Flash, 32kB SRAM
- Communication Interfaces: 2 x SPI, 5 x USART, 2 x I2C, 2 x CAN, 1 x USB, 1x SDIO
- 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
Refreshing Example
Refreshed by ST25R3911B NFC Board included in the Kit
Application examples
Suitable for price Tags, asset/equipment Tags, shelf labels, conference name tags...
Specifications
| Power supply | Wireless | Grey scale | 2 |
|---|---|---|---|
| Display color | Black / White | Refresh time | 5s (data transfer time is not included) |
| Dot pitch | 0.205×0.204 | Display size | 163.2mm×97.92mm |
| Resolution | 800×480 | Outline dimension | 195.84mm×137.68mm |
| Viewing angle | >170° |
Outline dimensions
Weight: 0.336 kg
Quick Overview
- 7.5inch 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
