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ESPbreakout is a breakout board for the popular ESP32-s3 chip that includes many breakout pins, a microsd card slot, wifi support, compatible with any other ESP32 setup, and has programming via USB 3.0.

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SamhithPola2025/ESPbreakout

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ESPbreakout

Overview

ESPbreakout is a breakout board for the popular ESP32-s3 chip that includes many breakout pins, compatible with any other ESP32 setup (for the most part), and has programming via USB 2.0. This board uses the ESP32-S3 SOC, which means that it does not use any of the modules that espressif has already made, and just the bare ESP32-S3 chip. This board includes pins for progamming, a USB-C port (for programming & power), a screw terminal to convenient wire up a Lithium battery to (3.7v). And you can also utilize the PSRAM that I added externally onto the board. The board includes comprehensive labels for buttons and pins, for ease of use. The cost and materials used to manafacture/make this board are in the BOM.csv file.ile.e.

Intent behind making this board:

I made this board to showcase what I already know, and to learn a lot of new things (I can say that this one was accomplished). I also made this board to act as a substitute for the ESP32-S3 devboard that exists, and of course it wont be better than the board made by the actual company, Espressif, but it will be pretty decent and working!

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image image image (Pictures of the built version will be added once I get all the components and solder what needs to be soldered, for the most part this is PCBA though.)
Reference Quantity Part Unit Price Extended Price
PCBA 1 PCBA Estimate $52.55 $52.55
B1 1 TinyCircuits BATTERY LITH-ION 3.7V 1AH $9.95 $9.95
C1 1 Pololu 2PIN F JST PH-STYLE CABLE 12CM $1.47 $1.47
J1 3 Sullins Connector Solutions CONN HDR 4POS 0.1 GOLD PCB $0.38 $1.14
J2 1 Phoenix Contact TERM BLK 2POS SIDE ENTRY 5MM PCB $0.78 $0.78
Total $71.89

Note: $6.00 of buffer is added for shipping or tariff changes. Any unused buffer will be returned.

Cart screenshots

Screenshot 2025-11-01 at 11 53 29 AM Screenshot 2025-11-01 at 12 08 29 PM

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ESPbreakout is a breakout board for the popular ESP32-s3 chip that includes many breakout pins, a microsd card slot, wifi support, compatible with any other ESP32 setup, and has programming via USB 3.0.

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