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Retro-fit control board for a Minecraft LED torch from Aliexpress, featuring ESP32-C3

Development board for the 8th generation RAJx HAB tracker

8th generation of the RAJx HAB tracker

Programmable electronic solar cell simulator

Tiny programmable device that makes strange noises in random intervals.

Miniature christmas tree PCB for beginners, featuring a RISC-V MCU CH32V003, 5 LEDs and a touch pad.

Smart christmas decoration. A tree-shaped PCB with ESP32-C6 SuperMini and addressable LEDs, powered by a rechargeable coin cell battery

'Hardware-programmable' christmas tree PCB with a Johnson counter, powered from AA cells

"Hardwarově programovatelný" vánoční stromeček s čítačem 4017, napájený z AA článků

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A simple extension board for the ESP32-C3 SuperMini, adding a microSD card and an optional lithium battery charger & voltage regulator.

A simple extension board for the ESP32-C6 SuperMini, adding a microSD card and an optional Stemma Qt connector

A mock-up of an ESP32-C6 development board from Aliexpress

A mock-up of an ESP32-C3 development board from Aliexpress

Memíky na plošňáku. Memíky na plošňáku. Memíky na plošňáku. Memíky na plošňáku. Memíky na plošňáku.

A new generation of the programmable christmas tree decoration with RGB LEDs - now featuring an ESP32-C3, USB-C and an 18650 Li-Ion battery with on-board charging.

Jednoduchá hra pro 3 hráče s tlačítky a ledkami, využívající tyristory a napájená z penízkové baterie

Miniaturní vánoční stromeček s RISC-V procesorem CH32V003 a jednoduchými LED, napájený z penízkové baterky