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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.
Specs:
- 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).
ESP32-S3-DevKitC-1 V1.1 Schematics
- Schematics with annotations by RB: sch_esp32-s3-devkitc-1_v1.1_20220413_annotations_rb.pdf
- Schematics, original: SCH_ESP32-S3-DevKitC-1_V1.1_20220413.pdf
Components
| System Block Diagram |  |
| WROOM Module |  |
| USB Connectors |  |
| USB to UART Bridge |  |
| Pin Header Connectors |  |
| Switches |  |
| Low Dropout Linear Voltage Regulator (LDO) |  |
| RC Reset Circuit |  |
| Auto Program Logic |  |
| RBG LED |  |
ESP32-S3-WROOM-1 Module
- Datasheet: esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf
 |
| Source: ESP32-S3-WROOM-1 Datasheet |
ESP32-S3 Chip
- Datasheet: esp32-s3_datasheet_en.pdf
 |
| Source: ESP32-S3 Series Datasheet |