This a simple circuit, very easy to build and also efficient. There is enough space for mounting a heat sink, you may want to use a IRFZ44N instead.

A project for automation, hobby and also learning.

RP2040 prototype & experimenters board

This board is for learning purpose.

This guide demonstrates how to craft a Star Wars game with the ESP8266, OLED Display, and Joystick Module

300W TPA3255 Car Audio amplifier amplifier, The design includes 12V battery to +40V Interleaved DC-DC Boost Converter with Fuse and Battery Reverse protection.

In this tutorial, I am going to use the ULN2003 IC to create a simple, inexpensive water level indicator.

This is actually a modern replica of the so-called "E-Meter", device used in Scientology practices which costs several thousand dollars.

This is a small (17.9 mm x 10.3 mm) breakout board for PixArt's PAA3905 optical flow sensor. It provides X-Y velocity at 126 Hz via Optical Flow and 35 x 35 pixel video camera at 18 Hz. There is a well-commented Arduino sketch showing how to use the device for navigation and frame grabbing. The frame grab rate is significantly improved over its predecessor, making for a practical low-resolution still imaging and video camera capability. Power usage is a modest 3.5 mA and the sensor can move in and out of shutdown mode quickly allowing flexible power management. The light level adjustment is automatic (although can still be done manually), streamlining sensor management. The sensor is smaller than its predecessors, with fewer pins making design and assembly easier. Light level sensitivity extends down to 5 lux. The frame grab occurs at a crisp ~15 Hz (56 milliseconds to complete), allowing low-resolution video imaging using the infrared-sensitive sensor element. Open source design!

I am going to present the simple yet entertaining breakout game created with Arduino UNO, an OLED display, and a joystick.

Foldable Lamp Box - Night Light - reacts to sound and has adjustable brightness, USB port for charging, runs 24h on Battery - ATtiny85 processor - 25x WS2812 leds

This a version of a well known and desired project by any maker.

DIY High Performance & Fully Protected 300W Stereo Class D Amplifier using TAS5630B for your Active Speaker or High Power Bluetooth BomBox.