The technological challenges of driving e-paper displays (EPDs) are significantly greater than for TFT displays due to the temperature-dependent waveforms. Therefore, control cards for different EPD types have been developed: black and white "Pearl" or "Carta", three-, four-color or even full-color "Gallery Plus" and "Spectra 6".

A flat and slim design of the cards allows economical mechanical solutions and a common external interfaces (SPI and USB) facilitate communication with the host. The T-CON chips used on the cards support the original waveforms of the E Ink displays and therefore ensure the best image quality in the corresponding operating temperature range.

The eJump EPD controllers are designed for easy control of large format E Ink e-paper displays with diagonals ranging from 9.7" to 42" with communication being done via generic USB interface.

A C/C++ and Python interface for Windows and Linux is available, as well as some example programs (written in C++ for the Raspberry Pi, preferably a model 4). The latter are available for download on the respective product pages. Programs for Python can also be provided if requested.

The new API 2.0 contains among others the following functions:

• Querying panel information
• Loading image data onto the T-CON board
• Displaying images on the e-paper display
• Setting VCOM and the board id
• Updating firmware / waveform

The following C++ demo programs are provided by Beck:

• ejump_usb: For displaying images on the e-paper display
• ejump_vcom: For setting the VCOM voltage
• ejump_waveform: For flashing a waveform

For more information, please refer to "Application Note for Setting Up a Raspberry Pi" in the download section of the respective product.

The driver cards developed in cooperation with our Asian partners are available from BECK together with the corresponding cables and code examples.