RP-To-ESP #1

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zane wants to merge 0 commits from RP-To-ESP into main

zane commented

2026-05-06 13:32:47 +00:00

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This pull request converts some things internally in the program.

Both both devices there are far fewers commands (From around like ~15-20 to 5). See shared/commands.h for these
The RP2350 no longer handles SD card communications. This became too slow in the long run for exporting data over the air. Now it sends boths it's system logs and keylogs over serial to the ESP32. (Serial message length has been expanded to 512 bytes for this use case)
The ESP32 now handles SD card communication. This allows for both systems to log system logs to a shared file directly. The ESP32 from now on will be the 'main' MCU since it's just leaps and bounds better than the shitty RP2350. Download speeds are about 300KB/s which is not bad but could be improved by using SDIO instead of SPI.
Work has been done to setup configuration via JSON using cJSON on the ESP32

This pull request converts some things internally in the program. 1. Both both devices there are far fewers commands (From around like ~15-20 to 5). See shared/commands.h for these 2. The RP2350 no longer handles SD card communications. This became too slow in the long run for exporting data over the air. Now it sends boths it's system logs and keylogs over serial to the ESP32. (Serial message length has been expanded to 512 bytes for this use case) 3. The ESP32 now handles SD card communication. This allows for both systems to log system logs to a shared file directly. The ESP32 from now on will be the 'main' MCU since it's just leaps and bounds better than the shitty RP2350. Download speeds are about 300KB/s which is not bad but could be improved by using SDIO instead of SPI. 4. Work has been done to setup configuration via JSON using cJSON on the ESP32

zane added 6 commits

2026-05-06 13:32:47 +00:00

0.7.0 - removed a bunch of now unneeded commands and stuff from commands.h. removed a ton of rp2350 code and the SD library dependency for it. rp2350 compiles currently but not yet esp32 74b4db39ae

0.7.1 - now everything compiles properly. SD now re-setup on the esp32 562b8e54bb

0.7.2 - re-added ls and streaming files. got about a 30x improve on raw speeds from 10KB/s to 300KB/s still wish to get around 1MB/s but idk if that's possible atm given wifi limitations and just general sluggish SPI performance. maybe sdio would be better. also shortened down some few words in usbman.h. more improvements can probably be made in this department, maybe even a configuration for shortened key logging and whatnot to save on space. 0bd5ae9e8f

re-added all the sd functions. they're all tested and work well. added file deletion. started the basic for configuration. this needs a cleanup in some places 674800ecaa

minor push. added serial logging of plog from rp2350 to write to disk on esp32 (barely, it's very hacky due to the poor design off the rp2350 uart controller c42d0d5cf2

0.7.4 - readded keylogging saving to disk over serial. needs to be stress tested more but all the og functionality of the device is still here so gonna go ahead and close this branch babe7b0b5e