2.9inch Passive NFC-Powered E-Paper Evaluation Kit, No Battery, Wireless Powering & Data Transfer
NFC E-Paper Eval Kit 2.9"
- 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
Outline Dimensions
Wiki: www.waveshare.com/wiki/2.9inch_NFC-Powered_e-Paper
Package Content
- 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
FAQs:
Q: Does this e-Paper display require a battery?
A: No, this e-Paper display utilizes passive NFC technology and does not require a battery. It receives power wirelessly from the NFC reader during data transfer.
Q: How can I update the content on the display?
A: You can update the content using a smartphone with NFC capability (through the provided Android app) or an NFC reader. The kit includes an NFC board for this purpose.
Q: What is the refresh time of the display?
A: The refresh time of the display is 2 seconds (excluding data transfer time). This means it takes 2 seconds for the image to fully update after receiving data.
Q: What are the typical applications for this NFC-powered e-Paper?
A: Due to its battery-free nature and wireless power/data transfer, this e-Paper is ideal for applications like price tags, asset/equipment tags, shelf labels, conference name tags, and other scenarios where frequent battery replacement is inconvenient.
Q: What is included in the evaluation kit?
A: The evaluation kit includes the 2.9-inch NFC-powered e-Paper display, an NFC reader (ST25R3911B NFC board), a Micro SD card, and essential accessories like cables.
