Design of HDMI shield is being updated and revised.

HDMI Shield for Arduino, mbed, & your MCU

HDMI Shield is an Arduino compatible development board to bridge the gap
between small MCUs and High Definition Televisions (HDTV).
Small MCUs prevalent in prototyping systems like Arduino or mbed cannot
output high-bandwidth video signal for HDTVs.
HDMI Shield do it in two steps:
(1) use an external LCD controller (RA8876) to generate RGB video signal.
RA8876 supports multiple display buffers, picture-in-picture, 2D BitBlit engine,
DMA transfer for images preloaded in Serial Flash, and font rendering from
embedded character ROM.
RA8876 releases the burden of pixel-by-pixel drawing from a MCU.
The full TV frame is updated instantly with only few SPI commands.
(2) RGB video generated by RA8876 is fed to a HDMI encoder CH7035B. With
its advanced scaling engine this chip boosts RGB signal in 8:8:8 to TMDS
signal up to 1920*1080 @ 60Hz (1080p) output through HDMI/DVI interface.
HDMI shield in YouTube (link)  
Application for a Ticket Display System.
Full description and source code
in GitHub (Ra8876_ticketdisplay_part1)
Board features:
* Shield compatible with Arduino form factor for 3.3V systems
* LCD controller RA8876 generates RGB in 8:8:8 up to 1366*768
* HDMI encoder CH7035B with an advanced scaling engine to support
1080p@60Hz HDMI/DVI output
* Compatible with SPI, 8080, & 6800 interface with SPI as default for Arduino
* Onboard 256Mbit SDRAM for frame buffer equivalent to storage of more
than 17 frames in 1280*720*16bit resolution
* HDMI Type A socket for direct connection to any HDTV or monitors
* 128Mbit Serial Flash (25Q128JVSQ) stores more than 7 pages of graphic
assets in binary format, with single instruction to display images by DMA
* Include a STM32F103VET6 driver board with firmware preloaded for
AP Software tool. This tool is used to control RA8876 and download image data to 128Mbit Serial Flash with a PC. But it is not restricted to use stm32.
Connect the boards with 5cm 40pins FPC cable.

(Click thumb image to enlarge)
Displaying on a 1080p HDMI monitor below
Component used:
(1) HDMI Shield dev. board v2
(2) STM32F103VET6 driver board

(click thumb image to enlarge)
* Arduino library fully tested on ESP8266, ESP32, DUE, Arduino M0,
Intel Genuino 101, and Teensy 3.2/3.5

Document & Software    

Doc 01  Getting Started Guide for version 2
Document update 20190804
6.2 MB  
Doc 02 Schematic for AP connections 28 KB


Doc 03 Pinout diagram for Arduino Form Factor 689 KB
Doc 04 Schematic of STM32F103VET6 AP board 35 KB  
Doc 05 STM32F103VET6 USB Driver 285 KB
Doc 06 Schematic of Due Zipper Board 32 KB
Doc 07 Schematic of TeensyStacker board 20 KB  
Doc 08 Arduino library on GitHub
Doc 09 Full Schematic of HDMI Shield v2 114 KB
Doc 10 Ticket Display System with Arduino-Part I 4.00 MB   
Doc 11 ESP32 IoT on HDMI monitor 4.80 MB  


Item description HDMI Shield development board - version 2
Part number HDMIshield_DTE20190610 Packing list
Price US$49.00
  *** Write email to us before placing an order (Covid-19)***
Freight charge US$15-20 for registered air parcel** for all countries
  **Standard shipping method is registered air parcel
  Shipping time varies from 2-4 weeks
  email us to order if a faster service by EMS / DHL is required
Optional items (1) Due Zipper Board with ESP8266 Wifi SoC
  Part #: DueZipper_DTE20171024
  (2) Teensy Stacker Board
Part #: TeensyStacker_DTE20171030
  Price: US$4.00
  (3) Unitek 1m high quality HDMI cable
Part #: Unitek Y-C136K
  Price: US$4.00