Phone sync hangs uploading

[mmiller7]

Just got some tags off eBay and was able to "wake them up" with the broadcast diagnostic successfully. But when I go to send something custom to the Flipper it hangs.

On the phone app it says "Waiting for flow credit"
On the Flipper it says "RX 19 chunks"

Flipper firmware is "unleashed086e" and compiled on Linux Mint with the unleashed dev environment. I did have one compiler warning that I had to suppress during build for -Werror=format-truncation" in applications_user/TagTinker/scenes/tagtinker_scene_synced_image_list.c which I fixed by adding the preprocessor directive #pragma GCC diagnostic ignored "-Wformat-truncation" at the top of the file. I'm unsure if this could be related.

Any recommendations how to debug?

[i12bp8]

I think the ratio of your tag is too high for the flipper to handle using current version. I will update this when i'm back from vacation.

Try Set Text with a low ratio like both less less than 200 width and less than 100 height for now as a test. or lower. tell me if that works

[mmiller7]

I can transmit text from the Flipper (and sometimes see the ESL display's IR LED blinking dull deep red back) but quite often they don't actually change images or take a LOT of tries. Hard to tell if its something with software or the eBay "surplus" batch I got all have low batteries or something.

After a variety of attempts, I was able to get text to show up (no errors on the flipper, probably user-error that it was so hard to show up) and overwrote the corner of whatever this was on "page 2" of this tag

[mmiller7]

I think I found another (model dependent?) bug may have been contributing to my difficulty.

When I send text, it appears I can send it successfully on pages 0, 1, and 2.
When I use the broadcast mode to SET the pages, it seems to be "off by 1" (e.g. broadcast pg1 shows page 0; broadcast pg2 shows page 1; broadcast pg3 shows page 2) and broadcast pages of 0, 4, 5, 6, 7 have no effect. Also bizarrely after sending the "change to pg3" it reverts back to the previous page after a short time for no apparent reason.

But I have not found any successful way to send an image from the phone-app to the flipper-app yet. Always hangs at that error shown on the Flipper above.

Unrelated - I am speculating these MIGHT be using 850nm IR LEDs and not 940nm IR LEDs. I have both on hand, but I haven't yet learned how to recompile the app to send IR signals out the GPIO debug mode to test with different IR wavelengths for effectiveness. My reason for this speculation, when sending I can see the IR LED in the Pricer device flicker dim red like my 850nm security camera LEDs (maybe that's contributing to my issues jamming!) and typically 940nm IR is not visible at all to the human eye plus TVs typically use 940nm LEDs so I assume the Flipper's internal IR is using that. I think performance may be better if I can wire up an external 850nm IR emitter.....but I will investigate if there's somewhere in the code I can set the IR debug signal (sounds like its as simple as setting INFRARED_TX_DEBUG to 1 in furi_hal_infrared.c)

But this stuff is quite interesting!