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Green rectangular circuit board with ESP32 chip and pin headers

KEHIPI

KEHIPI e-Paper ESP32 Driver Board development board

SKU CH-7457-B2V65

Universal e-Paper driver board with onboard ESP32 for WiFi and Bluetooth display control

  • Universal driver board for SPI e-Paper raw panels
  • Onboard ESP32 enables WiFi and Bluetooth wireless image transfer
  • Android app and HTML host code for remote display refresh
  • Floyd-Steinberg dithering improves shadow rendering on supported image formats
  • Open-source driver and development resources simplify wireless integration

Universal e-Paper Driver Board

The KEHIPI e-Paper ESP32 Driver Board is a universal development board designed to drive compatible SPI e-Paper raw panels. It features an onboard ESP32 system-on-chip providing both WiFi and Bluetooth connectivity. This hardware targets makers and developers building wireless display applications or IoT edge devices requiring low-power visual output.

Sustained wireless operation

Under continuous use the board maintains a wireless link to refresh display content from a remote webpage or a smartphone application. The onboard ESP32 handles image processing tasks such as Floyd-Steinberg dithering for supported formats including BMP JPEG GIF and PNG. Developers can integrate the open-source driver and supplied resources into long-running wireless projects without relying on short-burst transfers.

SPI panel compatibility limits

The product only works with specific e-Paper raw panels that lack an integrated driver board; it is not compatible with every SPI e-Paper model on the market. Buyers who need a different panel size or a panel that already includes its own driver cannot use this board. Verification of the exact compatible model list is required before purchase to ensure the hardware matches the intended display.

Punti di forza

  • Universal driver board for SPI e-Paper raw panels
  • Onboard ESP32 enables WiFi and Bluetooth wireless image transfer
  • Android app and HTML host code for remote display refresh
  • Floyd-Steinberg dithering improves shadow rendering on supported image formats
  • Open-source driver and development resources simplify wireless integration

Caratteristiche tecniche

Brandwaveshare
Modele-Paper ESP32 Driver Board
Part Numbere-Paper ESP32 Driver Board

Domande su questo articolo

Does the onboard ESP32 run hot or draw much power when driving an e-paper panel continuously?

The ESP32 SoC handles Wi-Fi and Bluetooth while refreshing the display; e-paper panels only consume power during updates, so the board stays cool and draws minimal current between refreshes.

Which e-paper raw panels can I connect to the SPI interface on this driver board?

The board is designed for specific SPI e-paper raw panels without built-in drivers; check the product detail page for the exact compatible models before purchasing.

Can I use this driver board alongside a legacy microcontroller that lacks wireless connectivity?

Yes, the ESP32 provides Wi-Fi and Bluetooth so you can send images from a PC or phone to the e-paper while the older MCU handles other tasks via the same SPI bus.

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