Atom Display

SKU:K115

Description

Atom Display is a low-cost display driver that uses FPGA to simulate traditional SPI TFT-LCD data output, supporting a maximum image output of 720P (1280 x 720). It achieves widely compatible display output through a dedicated RGB-to-HDMI signal conversion chip. Embedded with an ESP32 controller, it integrates 2.4G Wi-Fi and comes with 8M Flash + 2M PSRAM memory. Atom Display can replace traditional PC-controlled display panel solutions, offering a more cost-effective alternative.

Features

FPGA and driver library code are open-source
Utilizes FPGA (Gowin GW1NR-9C)
Built-in LT8618SX RGB-to-HDMI signal conversion chip (supports 24-bit color depth)
SPI interface (FPGA) + I2C interface (LT8618SX)
Maximum image output of 720P (1280x720)
Multiple output modes, optimized frame rate up to 12 ~ 16 FPS
Built-in Atom PSRAM controller (ESP32-PICO-V3-02, 8M Flash + 2M PSRAM)
Programmable RGB LED x1, Reset button x1, Button x1, Full-featured Grove expansion interface x1
Development platforms: Arduino, ESP32-IDF (UiFlow not yet supported)

Includes

1 x Atom-PSRAM
1 x Atomic Display Base

Applications

Display input signal source
High-definition data dashboard

Specifications

Specification	Parameter
FPGA	Gowin GW1NR-9C
LT8618SX	RGB-to-HDMI signal conversion chip, supports 24-bit color depth
Maximum image output size	720P (1280x720)
Output frame rate	1280x720 60Hz
USB driver chip	CH9102
Product dimensions	64 x 24 x 29mm
Product weight	21.0g
Package dimensions	76 x 46 x 29mm
Gross weight	34.0g

Learn

Display Compatibility

Atom Display Lite requires a display with adaptive resolution scaling functionality. On some displays that do not support adaptive resolution, display anomalies may occur.

Schematics

Complete Atom Display Schematic

PinMap

BUTTON & RGB LED

Atom	G39	G27
BUTTON	SIGNAL	/
RGB LED	/	SK_DIN

LT8618SX

Atom	G25	G21	5V	GND
LT8618SX	LT_CSDA	LT_CSCL	VIN	GND

Softwares

Arduino

M5GFX - Lib

Programming Notes

Before using the example programs in the M5GFX library, you need to change the included header file to match the device you are using. As shown in the example below, include #include <M5AtomDisplay.h> and create an instance M5AtomDisplay display;


#include <Arduino.h>
#include <vector>

#include <M5AtomDisplay.h>
M5AtomDisplay display;

void setup(void)
{
  display.begin();
}

void loop(void)
{
  display.fillScreen(RED);
  delay(1000);
  display.fillScreen(GREEN);
  delay(1000);
  display.fillScreen(BLUE);
  delay(1000);
}