Request for RP2040 (Pico) Support for New S-PWM Driver Chips in v1.2.4

[maxmurugan]

Dear Sir,

First of all, thank you for your outstanding work on the DMD / HUB75 LED panel library.
The new v1.2.4 update with support for three classes of S-PWM driver ICs is an excellent improvement:

Unified Signal Control: ICN2153, FM6353

Dual-Signal Synchronization: FM6363

Fully-Decoupled Control: DP3264, ICND2055, FM6373

Currently, the documentation mentions that S-PWM support is only implemented for STM32 boards, and STM32F4 is strongly recommended.

I kindly request you to consider adding RP2040 (Raspberry Pi Pico / Pico W) support in future releases.

I am happy to help provide feedback and testing data.

Thank you once again for your great contribution to the LED display community.

[board707]

Hi @maxmurugan
Thanks for your kindly feedback.
I am pleased to announce that I am working on adding support for RP2040/2350 based boards.
Unfortunately, it is difficult to give a time frame yet.

I would appreciate any feedback and comments on the new release.

[board707]

Project news - I'm happy to report that I've managed to get the RP2040 boards working with DP3264, FM6373 and ICND2055 driver panels. Unfortunately, it took significantly longer than I planned. The most difficult part was getting several PIO machines to work together.
Drivers for FM6353 and 6363 panels, which were the simplest for STM32, don't work yet. The estimated launch date for the new library version is mid- to late January.

Happy New Year

[board707]

SPWM drivers support for RP2040 boards released in v1.2.5
https://github.com/board707/DMD_STM32/releases/tag/v1.2.5

[maxmurugan]

Hi Sir,

I am trying your PWM IC project using DP3364S

Uploading WhatsApp Video 2026-03-13 at 8.00.31 AM.mp4…

• DP32020.

I have attached a video showing the issues.

Issue 1: Text around the display is getting noise.
Issue 2: When updating data from the serial port, the display is getting flicker.

I am currently using this module right now.

Please kindly check and let me know what might be causing this issue.
If you have any suggestions, I will try them.

Great job, sir. This is your first PWM IC project and it is very impressive.

Thank you.

[maxmurugan]

WhatsApp.Video.2026-03-13.at.8.00.31.AM.mp4

[board707]

Hi @maxmurugan
The image is looking almost perfect, taking into account that the driver DP3364 is not listed as supported. The code was written for another chip DP3264s, which might has a different protocol.

Solving the issue needs to make test on panel with dp3364 driver, that I haven't in my possession now.

[board707]

@maxmurugan , hi again!
I think, You should have my email address, as we've corresponded before. Please email me the source code for your project, which is shown in the video. I'll try running it on panels with the 3264 driver. If similar distortions are visible, we can try to figure out the cause.

[maxmurugan]

dear sir,
I have removed the EEPROM and Wire library related parts from my code to make it simpler. I will send you the driver code used in the video.

Thank you for your help.

[board707]

After removing the code parts, please test the code again.
Distortions may be caused by the interaction of these libraries with the code working with the DMD matrix. In this case, testing the code without removed parts will be meaningless.