The 1MB Flash 0MB PSRAM version of the PAN9520. The PAN9520 is a 2.4 GHz 802.11 b/g/n embedded Wi‑Fi module based on Espressif’s ESP32-S2 that includes the powerful Xtensa® 32-bit LX7 CPU. An integrated chip antenna and QSPI memory enable the module to be used in a variety of stand-alone or host -controlled applications. The integrated crystal ensures connection performance over full temperature range and lifetime. Although the PAN9520 is one of the smallest modules on the market, this offers a rich set of peripherals like full-speed USB OTG, SPI, UART, I²C, and many more.