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Description
- 1x Waveshare 4.2" NFC-Powered e-Paper Evaluation Kit, Wireless Powering & Data Transfer (Not Compatible w/ Samsung)
- 1x 4.2-inch NFC-powered e-paper
- 1x ST25R3911B NFC board
- 1x Micro SD card 16GB
- 1x Micro SD card reader
- 1x USB-A to Micro-B cable
- Outline Dimension: 105.1 x 94.1 mm
- Display Size: 84.8 x 63.6 mm
- Power Supply: Wireless
- Grey Scale: 2
- Display Color: Black/White
- Refresh Time: 4 seconds (data transfer time not included)
- Dot Pitch: 0.212×0.212
- Resolution: 400×300
- Viewing Angle: Greater than 170°
- NFC Board Introduction: ST25R3911B NFC Chip, AT32F413RBT7 Controller, OLED Display, User Buttons, Common Interfaces
- AT32F413RBT7: Core: ARM® 32-bit Cortex™-M4F, Operating Frequency: 200 MHz, Operating Voltage: 2.0V-3.6V, Package: LQFP64, Memories: 128 kB Flash, 32 kB SRAM, Communication Interfaces: 2 x SPI, 5 x USART, 2 x I2C, 2 x CAN, 1 x USB, 1 x SDIO, AD & DA Converters: 2 x AD (12-bit, shares 16 channels)
- ST25R3911B: NFC chip, also known as AS3911B
- 23LC1024: SRAM, 1 Mbit
- CP2102: USB to UART converter for debugging
- SPX3819: 3.3V voltage regulator
- 1.3" OLED: Blue display, 128×64 pixels, SH1106 driver
- 4 user buttons
- 2 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