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Adafruit 4776 NeoPixel Mini Button.

Adafruit NeoPixel RGBW Mini Button

An example development and reference design for the ESP32 microcontroller.

A preliminary design for developing SMT32F4x series based project that’ll help you get started faster.

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator.

A simulated circuit that demonstrates how diodes in a bridge configuration convert an AC voltage to DC voltage.

Two separate simulated circuits which demonstrate how step up and step down transformers work.