Quantity   Component name
1 × ESP32 - WiFi & BT Combo Chip of Espressif
1 × W25Q32 - 4MB SPI Flash Memory ICs / FLASH Memory
1 × CP2104 - More samll USB to UART Interface and IO ICs / USB
1 × ASM1117 - Large output current LDO LDO
1 × Micro SD Card Interface
1 × PH-2 Connectors and Accessories / Board-to-Board and Card Edge Connectors