ESP32 WiFi Co-Processor AirLift Shield Adafruit ESP32 WiFi Coprocessor AirLift Shield allows the use of an ESP32 as a WiFi or BLUETOOTH® Low Energy (BLE) coprocessor. This shield handles all connections to a WiFi network and data transfer from a site, even using TLS/SSL encryption (pre-burned in root certificates). The AirLift shield incorporates the ESP32 module with a separate 3.3V regulator and a tri-state chip for MOSI that enables sharing of the SPI bus with other shields. The ESP32 also supports BLE, though not simultaneously withWiFi. A microSD socket helps to host or store data from the internet. The device comes fully assembled/tested and pre-programmed with the ESP32 SPI WiFi coprocessor firmware.