Crabik Slot ESP32-S3

Development Board

Code name: CRABIK_SLOT_ESP32_S3

ESP32S3

Crabik Slot ESP32-S3 is a development board based on the ESP32S3 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 8MB flash memory.

About Crabik Slot ESP32-S3

A modular ESP32-S3 development board designed for slot-based expansion and customization.

Technical Specifications

Complete technical specification details for Crabik Slot ESP32-S3

Connectivity

WiFi 802.11 b/g/n (2.4 GHz)

Bluetooth 5.0

BLE 5.0

Microcontroller

Model esp32s3

Clock Speed 240 MHz

Flash Size 8MB

Architecture xtensa

✨ Features & Pins

Digital IO 48

Analog Input 20

PWM 27

Interrupts 46

Download Full Datasheet

Quick Setup

Copy-paste configs for Crabik Slot ESP32-S3 - auto‑generated from this board's exact hardware specs.

ESP32S3 240 MHz 8MB DIO Xtensa

In Arduino IDE 2 select Crabik Slot Esp32 S3 from the esp32 by Espressif package. In PlatformIO use board = esp32-s3-devkitm-1. ESP32S3 · 240 MHz · 8MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Crabik Slot Esp32 S3

CPU Frequency 240 MHz

Flash Size 8MB

Flash Mode DIO

Upload Speed 921600

Architecture Xtensa

In Arduino IDE 2, open Boards Manager, search "esp32" by Espressif and install it. Then go to Tools → Board and select "Crabik Slot Esp32 S3" for the Crabik Slot ESP32-S3.

platformio.ini


[env:crabik_slot_esp32_s3]
platform  = espressif32
board     = esp32-s3-devkitm-1
framework = arduino

; Exact hardware config for Crabik Slot ESP32-S3
board_build.mcu        = esp32s3
board_build.f_cpu      = 240000000L
board_build.flash_size = 8MB
board_build.flash_mode = dio
board_upload.flash_size = 8MB

The board value is a close generic match - check PlatformIO board registry for an exact fit.

esp32: block (YAML)


esp32:
  board: esp32-s3-devkitc-1
  framework:
    type: arduino   # or "esp-idf"

# Crabik Slot ESP32-S3 - 240 MHz ESP32S3
# Flash: 8MB | USB: N/A

Paste into your device's .yaml. See ESPHome ESP32 docs for full options.

esptool.py - flash command


esptool.py \
  --chip esp32s3 \
  --baud 921600 \
  write_flash \
    --flash_mode dio \
    --flash_size 8MB \
    0x0 bootloader.bin \
    0x8000    partitions.bin \
    0xe000    boot_app0.bin \
    0x10000   firmware.bin

Install: pip install esptool - replace firmware.bin with your binary - bootloader at 0x0

Crabik Slot ESP32-S3 Pinout Diagram

Complete pin reference for Crabik Slot ESP32-S3

Useful Links

Datasheets and resources for Crabik Slot ESP32-S3

Board Datasheet

Technical specifications

ESP32S3 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for Crabik Slot ESP32-S3

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Touch	PWM	Other
0			BOOT_BTN
1	T1	PWM	S1
2	T2	PWM	S3
3	T3	PWM	S7
4	T4	PWM	S8
5	T5	PWM	S9
6	T6	PWM	S10
7	T7	PWM	S11
8	T8	PWM	S12
9	T9	PWM	S13
10	T10	PWM	S14
11	T11	PWM	S4
12	T12	PWM	S2
13		PWM	SDA
14		PWM	SCL
15		PWM	EN_TROYKA
16		PWM	LIPO_ALERT
17		PWM	S5
18		PWM	S6
19		PWM	USB_DN
20		PWM	USB_DP
21		PWM	LED_BUILTIN
33		PWM	S19
34		PWM	S20
35		PWM	MOSI
36		PWM	SCK
37		PWM	MISO
45		PWM	S15
46			S16
47			S18
48			S17
S12			TX
S11			RX
SDA
SCL			C
MOSI			DO
MISO			DI
SCK			CLK
S5			CS1
S6			CS2
CS1			SS
LED_BUILTIN			USER_LED

Legend

A0 Analog input

T0 Touch sensor

PWM PWM capable

RX/TX Serial pins

LED Built-in LED

# Pin number

Default Tools & Configuration

Build and upload settings for Crabik Slot ESP32-S3

Setting	Value
Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	`0x0`
Flash mode	dio
Boot mode	qio
Maximum upload size	1280 KB (1310720 bytes)
Maximum data size	320 KB (327680 bytes)