How to save data to SD-card
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The UI flow is nice but you end nothing written to the file, it is only created - please provide an example. may be it needs some control characters
thanks -
you could refer the demo block.
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Would you mind adding some indication about control characters there, like "\r\n"
Please recognize that you promised fast prototyping using the M5Stack but now it is clear that:- it is cumbersome, because the high level uiflow functions are not documented, and no working examples in micropython given to validate the high level functions
- the combination of modules was not testet (ok a lot of variants)
- the physical design has some flaws - the screen may brake when assembling, disassembling needs force - may be you may invent a receptacle with unlocking lever
Do you have a standard before selling modules for quality control, and a test plan?
