The ESP32-CAM module is based on the ESP32-S microcontroller and includes a 2M-pixel OV2640 camera and a micro-SD (Secure Digital) card slot. JPEG files of images are stored on the micro-SD card or loaded to a web page or streamed to a web page on a computer, Android tablet, or mobile phone.
The ESP32-CAM module (see Figure 2-1) contains serial TX and RX pins, six pins associated with the micro-SD card, and a COB (Chip on Board) LED, which flashes when taking a photo, and a red LED, ...
