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Product description: Atomic Display Base - HDMI display driver - GW1NR-9C - expansion module for M5Atom - M5Stack A115
Atomic Display Base is an HDMI controller that uses an FPGA (Gowin GW1NR-9C) to simulate the classic SPI output for TFT LCD displays . With the built-in LT8618SX RGB-HDMI converter, it supports image resolutions up to 1280 x 720 px (720p) at 60 Hz and 24-bit color depth. The module communicates via SPI and I2C interfaces and offers various output modes with frame rate optimization (from 12 fps to 16 fps). This is a great solution for projects requiring economical and compact display control. It is supported by the Arduino environment and ESP32-IDF .
Also check out the user guide prepared by the manufacturer!
Atomic Display Base - HDMI display driver - GW1NR-9C - expansion module for M5Atom - M5Stack A115.
The output signal is converted from RGB using the Gowin GW1NR-9C FPGA.
Key Features of the Atomic Display Base
- Atom Series Compatibility : Works with Atom Lite, Atom Matrix, Atom S3 and S3 Lite modules
- HDMI 720p output : supports maximum resolution up to 1280 x 720 px
- 24-bit color depth : image conversion by the LT8618SX chip provides a rich palette of colors
- RGB to HDMI conversion : using the Gowin GW1NR-9C FPGA
- Dual-channel communication : SPI interface for FPGA and I2C for HDMI converter
- Compact size : small housing measuring 64 x 24 x 29 mm
- Lightweight and energy-saving design : weighs only 15.2 g with low power consumption
- Support for popular environments : programming in Arduino and ESP32-IDF
- Alternative to PC as controller : enables cheap and mobile display control without a computer
Compatibility and connection
The Atomic Display Base is designed to work with M5Stack's Atom series modules , such as the Atom Lite , Atom Matrix , Atom S3 , Atom S3R and Atom S3 Lite . Communication is via SPI and I2C buses - the appropriate pins should be assigned according to the documentation. Remember to adapt the source code to the actual pin layout . The module requires the use of a display that supports resolution scaling - otherwise the image may be displayed incorrectly.
The module supports Arduino and ESP32-IDF programming platforms.
Available communication interfaces are SPI (FPGA) and I2C (HDMI chip).
Practical applications
- Display Drivers for IoT and Automation Systems
- Intelligent information panels for home and office
- Multimedia presentations in education and at conferences
- Diagnostic dashboards for data monitoring
- Displays for remote viewing and control of systems
Attention!
Atomic Display Base requires a monitor that supports automatic resolution scaling . Screens that do not have this feature may experience issues with displaying the image.
Atomic Display Base Technical Specifications
- FPGA: Gowin GW1NR-9C
- HDMI Converter: LT8618SX (24-bit, RGB-HDMI)
- Maximum output resolution: 1280 x 720 px (720p)
- Refresh rate: up to 60 Hz
- Frame rate: 12 fps to 16 fps (optimized)
- Interfaces: SPI (for FPGA), I2C (for LT8618SX)
- Power: via Atom series connector
- Dimensions: 64 x 24 x 29 mm
- Weight: 15.2 g
Atomic Display Base is compatible with M5Stack Atom developer modules.
