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ESP32-S3-DevKitC-1 V1.1 by Espressif

Naming convention:
ESP32-S3 : microcoltroller core or variant
DevKitC : form factor of the microcontroller board
-1 : based on WROOM-1 module soldered onto the circuit board
V1.1 : the hardware version / revision

Main source of information:
Espressif ESP232 DevKitC user guide

The ESP32-S3-DevKitC-1 is a general-purpose development board, based on ESP32-S3-WROOM-1, ESP32-S3-WROOM-1U, or ESP32-S3-WROOM-2. All ESP32-S3 pins are exposed to the board's pin headers. The mounted modules WROOM-1 and WROOM-2 differ in their memory sizes. The U-variant provides an antenna connector for an external antenna instead the integrated one.

The AMC SS2024 course utilizes the development kit variant ESP32-S3-DevKitC-1-N8R8 V1.1.

  • ESP32-S3 WROOM-1 module with integrated antenna
  • 8 MB flash memory (for program code) connected via Quad SPI (QD)
  • 8 MB external PSRAM (for variables during program execution) connected via Octal SPI (OT)

“For boards with Octal SPI flash/PSRAM memory embedded ESP32-S3-WROOM-1/1U modules, and boards with ESP32-S3-WROOM-2 modules, the pins GPIO35, GPIO36 and GPIO37 are used for the internal communication between ESP32-S3 and SPI flash/PSRAM memory, thus not available for external use.” (Source: Espressif ESP232 DevKitC user guide)

Therefore, AMC students: Do not use GPIO35, GPIO36 and GPIO37! (When you use the ESP32-S3-DevKitC-1).

Install the Arduino-ESP32 Support

The installation procedure is described on the official Espressif - original manufaturer of ESP32 - web pages:

Add the stable release sources to the additional board manager URLs: Arduino IDE → File → Preferences → Addidtional Board Manager URL

ESP32-S3-DevKitC-1 V1.1 Schematics


System Block Diagram
WROOM Module
USB Connectors
USB to UART Bridge
Pin Header Connectors
Low Dropout
Linear Voltage Regulator (LDO)
RC Reset Circuit
Auto Program Logic

ESP32-S3-WROOM-1 Module

ESP32-S3-WROOM-1 Module.
Source: esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf
ESP32-S3-WROOM-1 block diagram.
Source: ESP32-S3-WROOM-1 Datasheet

ESP32-S3 Chip

ESP32-S3 functional block diagram.
Source: ESP32-S3 Series Datasheet
supp/esp32/esp32-s3-devkitc/start.txt · Last modified: 2024/05/03 10:50 by rolf