That sounds neat, and I love the idea of displaying a QR code, even though I'm not sure how practical it would be. Is it there to allow viewing more data than would otherwise fit on the display in human-readable form?
For my use case, I could hack a system with a spare phone reading the code on a timer and uploading the results, but this feels like an overkill. How much more complex would it have to be to use that same USB-C charging port for data and power delivery? I'm imagining attaching an ESP32 board to it, which would be powered by your device, and would occasionally wake up, read a CSV file or a data stream over that USB connection, upload it to my home server, and go back into deep sleep. With an option to turn the OLED display off, I imagine it could even extend the battery life.
(Please don't take this as criticism - I fully understand my use case is most likely out of scope of your project, but I'm wondering how close it is to be supported.)
For my use case, I could hack a system with a spare phone reading the code on a timer and uploading the results, but this feels like an overkill. How much more complex would it have to be to use that same USB-C charging port for data and power delivery? I'm imagining attaching an ESP32 board to it, which would be powered by your device, and would occasionally wake up, read a CSV file or a data stream over that USB connection, upload it to my home server, and go back into deep sleep. With an option to turn the OLED display off, I imagine it could even extend the battery life.
(Please don't take this as criticism - I fully understand my use case is most likely out of scope of your project, but I'm wondering how close it is to be supported.)