7 segment LED clock based on the Atmega328AU microcontroller and WS2812 addressable LEDs. The LED clock circuit contains such nodes as: an ATmega328AU command microcontroller, a DS3231 real-time microcircuit, touch-sensitive buttons based on the TTP223-BA6 microcircuit and WS2812 addressable LEDs.

7 segment LED clock based on the Atmega328AU microcontroller and WS2812 addressable LEDs. The LED clock circuit contains such nodes as: an ATmega328AU command microcontroller, a DS3231 real-time microcircuit, touch-sensitive buttons based on the TTP223-BA6 microcircuit and WS2812 addressable LEDs.

AR glasses

AR glasses

Controller for my IV-25 Display Module

Controller for my IV-25 Display Module

ESP32 SPI TFT shield Проект ESP32 SPI TFT шилда

ESP32 SPI TFT shield Проект ESP32 SPI TFT шилда

An Arduino based LED Tester with LCD. Select the current and the destination voltage (your battery), connect the LED to the tester and get the needed value for a serial connected Resistor. You can also see the measured values for the LED (forward voltage and current). Based on the idea of https://jaycar.com.au

An Arduino based LED Tester with LCD. Select the current and the destination voltage (your battery), connect the LED to the tester and get the needed value for a serial connected Resistor. You can also see the measured values for the LED (forward voltage and current). Based on the idea of https://jaycar.com.au

Mitsubishi Lv16-RV Fan Work with Home Assistant.

Mitsubishi Lv16-RV Fan Work with Home Assistant.

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This post shows how to design and build a compact modified sine wave inverter that has all the necessary safety features to ensure stable and long operation. Because the inverter is software controlled, many other functions and voltage inputs can be enabled. One unique thing about this inverter is that it contains a tap changer, which makes it possible to switch taps to suit different input and output voltages, such as an inverter with a selectable output voltage of 110 or 220V.

This post shows how to design and build a compact modified sine wave inverter that has all the necessary safety features to ensure stable and long operation. Because the inverter is software controlled, many other functions and voltage inputs can be enabled. One unique thing about this inverter is that it contains a tap changer, which makes it possible to switch taps to suit different input and output voltages, such as an inverter with a selectable output voltage of 110 or 220V.

Stand-alone Oscillator Calibrator and High-Voltage Fuse Resetter for 8-Pin ATtinys

Stand-alone Oscillator Calibrator and High-Voltage Fuse Resetter for 8-Pin ATtinys

Single-Cell Li-ion Battery Charger with selectable Current Limit and OLED Display

Single-Cell Li-ion Battery Charger with selectable Current Limit and OLED Display

USB Phone Charge Guard controls and monitors charging of phones and other devices in order to extend battery life

USB Phone Charge Guard controls and monitors charging of phones and other devices in order to extend battery life

Simple Tachometer (RPM-Meter)

Simple Tachometer (RPM-Meter)

Control almost any number of NeoPixels with an IR Remote

Control almost any number of NeoPixels with an IR Remote

ESP32 based weather station - does NOT include the solar-powered part of the solution - which is done with the help of another board.

ESP32 based weather station - does NOT include the solar-powered part of the solution - which is done with the help of another board.

Breadboard friendly dev board for ATmega328P-PU

Breadboard friendly dev board for ATmega328P-PU

Robot control board

Robot control board

T12 Quick Heating Soldering Station based on ATmega328P

T12 Quick Heating Soldering Station based on ATmega328P

Simple 5V/2.5A Uninterruptible Power Supply (UPS) for RaspberryPi and other Devices

Simple 5V/2.5A Uninterruptible Power Supply (UPS) for RaspberryPi and other Devices

ESP-12F Current Logger (INA226)

ESP-12F Current Logger (INA226)

Simple USB-C Power Delivery Tester with OLED Display

Simple USB-C Power Delivery Tester with OLED Display

Simple USB Power Tester with OLED Display

Simple USB Power Tester with OLED Display

Stepper motor driver board ULN2003A

Stepper motor driver board ULN2003A

KY-015 Temperature humidity sensor

KY-015 Temperature humidity sensor

Simple Tea Light Candle Simulation

Simple Tea Light Candle Simulation

Candle Simulation using Neopixels, IR Remote Receiver and Ambient Light Sensor.

Candle Simulation using Neopixels, IR Remote Receiver and Ambient Light Sensor.