This board is for learning purpose.

A project for automation, hobby and also learning.

Detect USB Killer flash drivers and prevent damage to hardware.

The project represents an electronic switch actuated by the value of the light intensity that excites a photoresistor.

I used this board to connect an Intel Compute Stick with mail hdmi connector to a portable 7-inch display with female hdmi input. You can use it as you wish. The clearance between the soldered connectors is 7 mm.

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

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

RP2040 prototype & experimenters board

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!

A basic robot motor driver brain, utilizing the Wemos D1 Mini.

It lets you customize your own Arduino shield with any custom circuit you can think of

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