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esp32_cam replica circuit

Overview

Circuit Source:
ESP32-CAM Camera Development Board | Ai-Thinker Technology (ai-thinker.com)
Circuit Modifications:
1. The download port has been modified with a download mode toggle switch. When switched to download mode (GPIO00 connected to GND), the serial port can download programs. Referring to the previous cold-start-free download circuit, batch program burning can be achieved.
2. The ESP32-CAM DEMO program can be used to implement webcam monitoring in a browser. Other functions can be developed as needed.
Discussion:
1. My usage only requires capturing images of a few tens of kilobytes, so the prototype circuit can eliminate the TF card and PSRAM, and even eliminate the ESP32-WROOM-32-N4, directly using the ESP32-S2 microcontroller design.
2. The ESP32-WROOM-32U module can be used to replace the ESP32-WROOM-32-N4, with the same package and pinout.

Design Files

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Update:2026-03-27 00:44:11

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