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ESP8266 Minimal System Board

Overview

ESP8266 is the smallest system board. ESP12E and 12F chips are available, and it is compact in size.

There is no USB-TTL on the board, you need to use the USB-TTL downloader. First connect IO0 to ground, then connect the TXD of the board to the RXD of USB-TTL, and the RXD of the board to the TXD of USB-TTL. Connect the power supply and you can download the program. Just leave IO0 ungrounded when running the program.

Sample front and back

(Not taken yet...)

Actual picture front and back

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-25 00:47:45

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