ESP-WROOM-32 is a general-purpose Wi-Fi+BT+ MCU module, powerful and versatile, it can be used for low-power sensor networks and demanding tasks, such as speech encoding, audio streaming and MP3 decoding etc. 520 KB of on-chip SRAM for data and instruction storage. The 8 KB of SRAM in the , the slow memory, can be accessed by the coprocessor in Deep-sleep mode. The 8 KB SRAM in the , namely the fast memory, can be used for data storage and accessed by the main CPU when the starts up in Deep-sleep mode. ESP-WROOM-32 integrates 4MB SPIFlash. Type: ESP32 Module Colour:black Material:plastic Package Contents: 1 x ESP32 Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.