Details
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
Adopts novel passive NFC technology
No battery required, no more battery life trouble
Passive NFC solution, No Battery Required, No messy wiring, stable operation
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
* the specific APP or NFC reader is required for refreshing the e-paper screen.
ST25R3911B NFC chip, STM32F103RCT6 controller,
OLED display, user buttons, and common used interfaces
Chip Overview
- STM32F103RCT6
controller chip - ST25R3911B
NFC chip - 23LC1024
SRAM, 1MB - CP2102
USB TO UART converter, for debugging - SPX3819
3.3V voltage regulator
Other Interfaces
- 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
This product requires higher NFC power for refreshing due to its large size, therefore, it is better to use the ST25R3911B NFC Board solution.
If a smart phone is used for refreshing, please make sure it has enough NFC output power, otherwise it may not be working.
| 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° |
Note: The following list includes only some tested phone models. It does not mean the APP only supports these models. For more compatibility details, please refer to the WIKI page.
| Phone Brand | Compatibility |
|---|---|
| iPhone | √ |
| Huawei (Android) | √ |
| Honor | √ |
| VIVO | √ |
| Xiaomi | √ |
| Redmi | √ |
| OPPO | √ |
| Samsung | Not supported |
| Not supported |
Weight: 0.336 kg
Quick Overview
- 7.5inch NFC-Powered e-Paper V2 x1
- ST25R3911B NFC Board x1
- Micro SD Card 16GB x1
- Micro SD Card reader x1
- USB-A to Micro-B cable x1
