Unexpected Maker TinyS3 ESP32-S3 Development Board (TinyS3)
Unexpected Maker TinyS3 ESP32-S3

Available from:


Install method:
USB to Serial

GPIO #Component
GPIO00 Button 1
GPIO01 User
GPIO02 User
GPIO03 User
GPIO04 User
GPIO05 User
GPIO06 User
GPIO07 User
GPIO08 User
GPIO09 User
GPIO10 User
GPIO11 None
GPIO12 None
GPIO13 None
GPIO14 None
GPIO15 None
GPIO16 None
GPIO17 Output Hi
GPIO18 WS2812 1
GPIO19 None
GPIO20 None
GPIO21 User
GPIO33 User
GPIO34 User
GPIO35 User
GPIO36 User
GPIO37 User
GPIO38 None
GPIO39 None
GPIO40 None
GPIO41 None
GPIO42 None
GPIO43 User
GPIO44 User
GPIO45 None
GPIO46 None
GPIO47 None
GPIO48 None
Configuration for ESP32-S3

A small form factor ESP32-S3 dev board.

This board uses an ESP32-S3FN8 chip with 8 MB of flash and 8 MB of PSRAM.


Flash using Tasmota Web Installer and select Tasmota ESP32-S3 option.

For esptool.py download f.e. tasmota32s3.factory.bin and run esptool.py write_flash 0x0 tasmota32s3.factory.bin

To put ESP32-S3 in flash mode GPIO0 needs to be pulled low.

Unexpected Maker TinyS3 Pinout

TinyS3 Schematic