Waveshare 2.13" E-Paper Cloud Module, 250 x 122, WiFi

Waveshare (19399) 2.13 inch E-Paper Cloud Module, 250 x 122 pixels, WiFi connectivity

Features:

• Includes ESP32 and supports Arduino development.
  
• No backlight, displays the latest content for a long time even when it is turned off.
  
• Voltage detection circuit to prevent battery over-discharge.
  
• Features: Battery connection and charging circuit, enables offline operation.
  
• Android APP to update the module via Bluetooth EDR, easy to use.
  
• Provides HTML host computer code for updating the module via the
• Remote website, easy to integrate into various Internet applications.
  
• Supports Floyd-Steinberg dithering algorithm, more color combinations and better shadow reproduction for the original image.
  
• Supports common image formats: BMP, JPEG, GIF, PNG, etc.
  
• Comes with embedded e-Paper driver (open source).

Specifications:

• WiFi standard: 802.11b/g/n
  
• Interface: SPI
  
• Bluetooth: 4.2 (BR/EDR/BLE included)
  
• Communication interface: 3-wire SPI, 4-wire SPI (standard)
  
• Power supply: battery
  
• Charging current: 1A
  
• Outline dimensions: 71mm × 30.2mm
  
• Display dimensions: 48.55 mm × 23.7 mm
  
• Dot pitch: 0.194 × 0.194 mm
  
• Resolution: 250 x 122
  
• Display color: Black, White
  
• Grayscale: 2
  
• Partial refresh time: 0.3s
  
• Full refresh time: 2s

Note:

• Refresh time: The data shown is experimental data, the actual time may be slightly different. It is normal for the e- paper to flash when it is fully refreshed.
  
• Performance: The performance data is experimental data.

Links:

• Wiki