M5StampS3 PIN1.27 is a highly integrated embedded Controller. Same as StampS3, this controller leverages the power of the ESP32-S3FN8 chip, featuring an impressive 8MB SPI flash memory for ample storage capacity. Equipped with a high-performance Xtensa 32-bit LX7 dual-core processor, running at a staggering main frequency of up to 240MHz, it delivers exceptional processing power.