ESP32-CAM microcontroller board

Model: ESP32-CAM.
Features:
The board is powered by an ESP32-S SoC from Espressif, a powerful, programmable MCU with out-of-the-box WIFI and Bluetooth.
It’s the cheapest ESP32 dev board that offers an onboard camera module (OV2640), MicroSD card support, and 4MB PSRAM at the same time.
The board does not have a conventional USB port, you will have to use either an FTDI programmer, or an add-on HAT, or an Arduino UNO along with the Arduino IDE/ESP-IDF DEV tools to upload codes to it.
Being a low-cost board in a small enough form factor has made it extremely popular for many IoT and machine vision applications.