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

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

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

Low Noise Amplifier for 144 MHz band with PGA-103, input low pass filter, output band pass filter and bypass relays in milled ALU case.

Low Noise Amplifier for 144 MHz band with PGA-103, input low pass filter, output band pass filter and bypass relays.

An ESP32 C3 Super Mini operated board for practicing simple maths, now with addition, subtraction and division!

Simple morse code PCB kit with an LED and a buzzer for silly scouts