Interstate 75 W (RP2350) with LED Matrix Panel 128x64 not working

Support
1

I just received it and trying to run basic hello world example after flashing the latest Micropython. All pixels are off. Tried panel_type=Interstate75.PANEL_FM6125-26A, other sizes as well but it is not working. The model of the panel is P2.5-128x64-32S-2020-V1 (P25-1.2Q-DP32019B+DP3364S A6A088F-HP-30000-06545). I doubt the current firmware does not support this panel. I wonder if Pimoroni did test it.

2

Just want to double check what uf2 file you used?
Was it from here?

If you can, post some pics of the hookup on the back side of the panel. How you have things plugged in etc.

3

I just received it and tried running a basic Hello World after flashing the latest MicroPython, but all pixels stay off. I tested panel_type=Interstate75.PANEL_FM6125_26A and other sizes too—still no output.

My panel model is P2.5-128x64-32S-2020-V1 (P25-1.2Q-DP32019B+DP3364S A6A088F-HP-30000-06545).

I suspect this panel may not be supported by the current firmware. Has Pimoroni tested this specific model?

4

Yes, I am using the 0.0.5 - Beta release. Here is the image.

interstate75w
interstate75w1920×1440 712 KB

5

Hookup looks OK. Maybe double check the power plug, shop page for that size panel, shows the polarity the other way? I don’t think you can plug it in the wrong way though? I have an older I75 W, Pico (2040) W onboard. It’s setup and running, and I haven’t messed with it in a long while, wiring wise anyway.

What is your power source? If you have a Pi 4 or Pi 5 Power supply handy I’d give that a try.

6

I am powering it with a Raspberry Pi 4 power supply. I can confirm this LED Matrix panel’s PWM driver (DP3364S) is not supported by the latest Micropython for the Interstate 75. It works using the Arduino library DMD_STM32 that supports RP2040/RP2350 as well.

7

OK, lt looks like it’s time to contact Tech Support. You may not get a reply until Monday.

8

Just to let you know we’ve replicated this issue here - looks like the manufacturer has done a sneaky part change again!

I’ve just passed some panels to our software folks and hopefully we’ll be able to update the library to be compatible with this new driver chip. If you need to return them though, do drop us a line.

3 Likes
9

Thanks for the update! I can wait for the updated firmware.