Electronic Components
Waveshare 2.13inch 3 Color E-Paper HAT (B) 250x122
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2.13 inch e-Paper HAT (B)
2.13inch 3-Color E-Paper HAT
A compact red, black, and white e-paper HAT with 250 122 resolution, SPI interface, Raspberry Pi 40PIN GPIO header, and ultra-low power paper-like display.
Key Features
- 2.13 inch e-paper HAT with 250 122 resolution.
- Three-color display: red, black, and white.
- Standard Raspberry Pi 40PIN GPIO header for Raspberry Pi series boards and Jetson Nano.
- SPI interface for other controller boards such as Arduino and STM32.
- No backlight required; content remains visible after power is removed.
- Onboard voltage translator for 3.3V and 5V MCU compatibility.
Specifications
| Operating voltage | 3.3V / 5V |
|---|---|
| Display color | Red / Black / White |
| Interface | 3-wire SPI / 4-wire SPI |
| Grey scale | 2 |
| Resolution | 250 122 pixels |
| Display size | 48.55 23.71mm |
| Outline dimensions | 65 30.2mm |
| Full refresh time | 15s |
| Refresh power | 26.4mW typ. |
| Dot pitch | 0.229 0.228mm |
| Standby current | <0.01uA |
Why E-Paper
E-paper reflects ambient light like printed paper, stays readable under lamplight or natural light, and keeps the last displayed content after power is removed.
Raspberry Pi 40PIN GPIO Header
The onboard 40PIN GPIO header is designed for Raspberry Pi series boards and Jetson Nano. Raspberry Pi Zero shown in reference images is not included.
SPI Interface
The HAT also exposes SPI control pins for controller boards such as Arduino and STM32.
| VCC | 3.3V / 5V input |
|---|---|
| GND | Ground |
| DIN | SPI MOSI |
| CLK | SPI SCK |
| CS | SPI chip select, active low |
| DC | Data / command selection |
| RST | External reset, active low |
| BUSY | Busy status output |
Application Examples
Suitable for price tags, shelf labels, asset or equipment tags, conference name tags, industrial instruments, and low-power information displays.
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