CFAF240320Dx-020Fx Demonstration Code

This is Arduino sample code for the CFAF240320Dx-020Fx family of displays. These displays are 2.0" Blanview TFTs which use the Sitronix ST7789V LCD controller. This LCD controller is capable of 8/9/16/18 bit parallel, 3 or 4-Wire SPI and DOTCLK RGB. In order to interface with the displays, a 45 pin ZIF to header breakout board will be required. The Blanview technology incorporated in this display makes it an ideal candidate for use when sunlight readability is an important requirement.

Connection Guide

// LCD SPI pins and control lines on Seeeduino:
// ARD       | Port  | Display pin |  Function - SPI                          |
//-----------+-------+-------------+------------------------------------------+
// 3.3V      |       |             |  POWER 3.3V                              |
// GND       |       |             |  GROUND                                  |
//-----------+-------+-------------+------------------------------------------+
// D8        | PORTB |  10         | Register select (data/command)  (RS)     |
// D9        | PORTB |  07         | Reset                           (RST)    |
// D10       | PORTB |  08         | Chip select                     (CS)     |
// D11       | PORTB |  16         | Serial input (display)          (SDA)    |
// D13       | PORTB |  09         | Serial clock                    (SCK)    |
//-----------+-------+-------------+------------------------------------------+
// SD card adapter and control lines on Seeeduino:
// ARD       | Port  | Adapter pin |  Function - SPI                          |
//-----------+-------+-------------+------------------------------------------+
// 3.3V      |       |             |  POWER 3.3V                              |
// GND       |       |             |  GROUND                                  |
//-----------+-------+-------------+------------------------------------------+
// D7        | PORTB |  05         |  Chip select 				     (CS)     |
// D11       | PORTD |  06         |  Serial input (adapter)         (SDA)    |
// D12       | PORTD |  07         |  Serial output (adapter)        (SDO)    |
// D13       | PORTD |  03         |  Serial clock                   (SCK)    |
//-----------+-------+-------------+------------------------------------------+
// Interface Selection
// IM2 | IM1 | IM0 | Interface mode  |
//-----+-----+-----+-----------------+
// 1   | 1   | 0   | 4-wire SPI      |
// 1   | 0   | 1   | 3-wire SPI      |
// 0   | 0   | 1   | 16-bit parallel |
// 0   | 0   | 0   | 8-bit parallel  |
//-----+-----+-----+-----------------+
(Micro SD card connection is optional)

Display information

Here are links to our active displays:
CFAF240320D0-020FN
CFAF240320D0-020FR

For more information about other TFT offerings, please see our full list here.