BRT Community

Unit: EVE3x-39A-BLH-TPC
Company: EFJohnson Technologies
Website: https://www.smode.io

Smode Media Server using the EVE3x-39A-BLH-TPC, a 3.9" 1U USB Interface, 480x128 Graphic Bar TFT Display 1U, Capacitive Touch with a 1000cd/m2 Sunlight Readable backlight!



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At Bridgetek, we specialize in innovative bridging and HMI technologies—including our powerful Embedded Video Engine (EVE) ICs and modules. In this video, we showcase a smart home controller built on the IDP-1000-04A smart display module, powered by our BT817 graphics controller.

Looking to create robust, high-resolution graphical user interfaces (GUIs) for challenging environments like automotive or medical applications? Discover the power of Bridgetek's BT817A Embedded Video Engine (EVE), an AEC-Q100 qualified solution designed for reliability and performance.

In this video, we showcase our BT817A-based bedside monitor demo, highlighting its smooth, real-time screen updates, intuitive touch interactions, and multi-language support. See how the BT817A's extensive graphics capabilities allow you to build feature-rich UIs using cost-effective MCUs, such as the Raspberry Pi RP2040 on our MM2040 EV module.

Unlock Powerful Embedded Graphics with Bridgetek FT800 EVE!

Integrate stunning Human-Machine Interface (HMI) solutions and embedded graphics into your products seamlessly. This video introduces Bridgetek's FT800 Embedded Video Engine (EVE) ICs and modules, simplifying user interface (UI) development without complex, graphics-heavy MCUs.

Discover how the FT800 empowers you to effortlessly add vibrant graphics, responsive touch capabilities, and audio to virtually any microcontroller. We showcase the IDM2040-21R module, featuring the FT800 driving a crisp 2.1-inch circular color screen, perfect for smart home controls and other intuitive applications. See firsthand how EVE's intelligent touch tagging and tracking features handle the heavy lifting, allowing you to create sophisticated UIs with cost-effective MCUs that lack onboard graphics.

Hi Nick,

Thanks for posting your findings, our R&D team are currently checking on this and we'll post a reply very soon,

Best Regards, BRT Community

Hi,

My success getting responses from this forum is not good so far so I might be wasting my time, but I'll try..

I believe there's a bug in one of the source modules for FT_Eve_Hal in ESD. When using display lists in ESD the following fail to compile due to unknown type argb32_t:

EVE_CoDl_colorArgb_ex and EVE_CoDl_clearColorArgb_ex. Other display lists that set color have the same issue.

I found an old thread probably related to this that refers to a change of type name.

I was able to fix compilation and get display lists correctly assigning colour with this change:

// Colour type fixed by Nick
//ESD_PARAMETER(c, Type = argb32_t, DisplayName = "Color")
ESD_PARAMETER(c, Type = ft_argb32_t, DisplayName = "Color")

That's in EVE_CoDl.h. Anyone who cares should be able to find the issue I'm referring to, and the several places where the same problem arises.

Nick

Hi Paul,

I was really hoping for a general explanation of the points that I had asked about, having overcome the problem that I initially encountered.

Thanks,
Nick

Ah, thanks, I have seen this document, but not the update.
I could not find boards with the RTD2513 in my last search I did, only from AliExpress, found two on EBay now as well which did not show before.
I bought a board with a RTD2660 which hopefully arrives by the end of july...
I was about the but one with the RTD2513 as well but it would be delivered in august, damn lazy bike couriers. 

And in regards of the video source, my issue is more with the budget I am willing to spend on this, when you have no application, a camera for 50+ bucks is kind of expensive. 

But looking at stuff like small video players, I just remembered that I have a RaspberryPi Zero somewhere in the office that I bought years ago and never used for anything.
And I just found that there is a RP2350-PiZero from Waveshare, only found it on AlixExpress though.

Edit: I just learned that the PCB800099 I ordered with the RTD2620 has an OSD and delivers a blue screen with a "No Signal" message, getting this to display by the BT820 would be a good start.   

Hi Rudolph,

We use an HDMI to LVDS board here for testing too, you can find details of the board that we use in chapter 9 of this new application note below,

https://brtchip.com/wp-content/uploads/2025/06/BRT_AN_092-BT820-Hardware-Design-Example.pdf

You can use a camera with HDMI output or even a laptop with HDMI monitor output to input video to the BT820B,

Best Regards, BRT Community

That indicates that you did the touch calibration without rotation.
Either use CMD_SETROTATE which also adjusts the touch transform matrix, or calibrate the touch after setting REG_ROTATE.

Edit: damn, 35s too slow because I had to get up and turn off the washing mashine.