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tinyHATs

A tinyHAT is a plug-in expansion board that stacks directly on top of the tinyCore ESP32-S3 using stacking pin headers, adding new hardware capabilities without any breadboarding or external wiring. Each HAT connects through a set of stacking headers that carry power, ground, and the GPIO signals the HAT needs — just seat it firmly and start coding.


AI Voice & Audio Expansion

Speaker output, MEMS microphone, headphone jack, and SD card slot — everything you need to build projects that listen, speak, and play music. Ships with nine ready-to-flash demo programs ranging from an offline MP3 player to a full voice-controlled AI assistant powered by OpenAI.

View tinySpeak Documentation →


Rapid Prototyping Expansion

Documentation coming soon.


LED Expansion

Documentation coming soon.


Environmental Sensor Expansion

Documentation coming soon.