M5stickC Logger (M5stick + built-in SD)
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Product requirement - An M5stickC sized module with the addition of a built in MicroSD card.
I've been using the M5stickC attached to a MicroSD and other devices such as RS422 converters and Shock sensors as a logger. I'd love to buy this product if it was available as a single unit.
The main requirement is the RTC and MicroSD card and onboard battery as it acts like a UPS. The ESP32 WiFi means you FTP files without having to remove the logger and have HTTP for status.