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ESP32-CAM Module: Features & Programming Guide

IoT & Hardware intermediate 5 min read $0.01 Updated 2026-07-31

A features-and-programming guide to the ESP32-CAM: onboard camera (OV2640/OV7670), microSD, flash LED and WiFi/BLE; how to flash it without a USB port using an FTDI adapter and the GPIO0-to-GND flash-mode trick; and running Espressif's CameraWebServer sketch for a browser live feed.

The ~$10 ESP32-CAM pairs an ESP32-S with a camera and microSD slot — but it has no USB port, which trips up first-timers. This guide covers its features, the FTDI wiring and GPIO0 flash trick, and running the CameraWebServer live-feed sketch.

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#esp32-cam#camera#ftdi#ov2640#arduino

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