ATOM Display Lite

SKU:K115-B

Description

ATOM Display Lite is a cost-effective display driver that uses an FPGA to emulate traditional SPI TFT-LCD data output, supporting up to 720P (1280x720) image output. It achieves broad compatibility for display output through a dedicated RGB-to-high-definition multimedia signal chip. Built with an embedded ESP32 controller, it integrates 2.4G Wi-Fi and a memory combination of 4M Flash + 520KB SRAM. ATOM Display Lite can replace traditional PC-controlled display panel solutions, offering a more cost-effective alternative.

Note

ATOM Display Lite requires a display with adaptive resolution scaling. Some displays without this feature may experience display abnormalities.

Parameter Comparison

Product	MCU	Flash	RAM	IO PINS
ATOM Display Lite	ATOM Lite (ESP32-PICO-D4)	4MB	520KB SRAM	G22,G19,G23,G33,G26,G32,G25,G21
ATOM Display PSRAM	ATOM PSRAM (ESP32-PICO-V3-02)	8MB	520KB SRAM + 2MB PSRAM	G22,G19,G5,G33,G26,G32,G25,G21

Features

Fully open-source FPGA and driver library
Uses FPGA (Gowin GW1NR-9C)
Built-in LT8618SX RGB-to-high-definition multimedia signal chip (supports 24-bit color depth)
SPI interface (FPGA) + I2C interface (LT8618SX)
Maximum 720P (1280x720) image output
Various output modes with optimized frame rates of 12 ~ 16FPS
Embedded ATOM Lite (ESP32-PICO-D4) controller
Programmable RGB LED x1, Reset Button x1, Key Button x1, Full-function Grove Port x1
Development Platforms: Arduino, ESP32-IDF (UIFlow not yet supported)

1x ATOM Lite
1x ATOM Display

Applications

Display input signal source
High-definition data dashboard

Specifications

Specification	Parameter
ESP32-PICO-D4	240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi
FPGA	Gowin GW1NR-9C
LT8618SX	RGB-to-high-definition multimedia signal chip, supports 24-bit color depth
Maximum Output Size	720P (1280x720)
Output Frame Rate	1280x720 60Hz
Net Weight	21g
Gross Weight	34g
Product Size	64 * 24 * 29mm
Package Size	76 * 46 * 29mm

Pin Mapping

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

Schematic

Architecture

ATOM Display FPGA Design

Example Program

Arduino

M5GFX - Lib

Tutorial

Click here to view the M5Atom Arduino Environment Setup Tutorial
Before using the example programs in the M5GFX library, ensure the included header files are adjusted for the current device in use. For instance, include #include <M5AtomDisplay.h> and create an instance M5AtomDisplay display; as shown below.

#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);
}