“Lots and lots of IO in a very small package at a reasonable price. Paired with, say, an M5StampS3 Breakout this provides similar IO capability to a DoIt ESP DevKitV1 clone at a similar price but with the added S3 features and the onboard RGB LED. If you're handy with an SMT rework station, an external SPI LCD panel or even more IO can be added via an FFC.”
