Welcome to the final instalment of my 8 DI Optically Isolated Arduino Shield. Today I will show you some of the assembly pictures, as well… Read More »Build your own 8 DI Optically Isolated Arduino Shield – Part 3
In part 1 of this article, I introduced my new I2C 8DI Optically Isolated Arduino Shield. Today, I will show you how the full design,… Read More »Build your own 8 DI Optically Isolated Arduino Shield – Part 2
All of us Makers like to tinker with stuff, and in this process, we may find ourselves thinking about how to connect device A to… Read More »Build your own 8 DI Optically Isolated Arduino Shield – Part 1
Everyone likes some free stuff once in a while. I have decided to release 3 recent PCB projects for free, no strings attached. The PCB’s… Read More »Free PCB Files available on Request
Today I will show you another useful IO Expander chip, The MCP23017. This chip, although similar to the PCF8475, which I have already covered in… Read More »Using the MCP23017 to increase your GPIO’s
Using a matrix keypad is a very easy way to add multiple control buttons to a project, be it to enter a password, or to… Read More »Using I2C with a 4×4 Matrix Keypad
Introduction Adding a display to any project can instantly increase its visual appeal, as well as make the project easier to control. Displays available to… Read More »The OLED Display
Today I will continue my series on I2C by showing you how to use multiple devices on the I2C bus. This will be an extremely… Read More »Multiple I2C Devices on the same Bus, I2C Part 3
In this post, I will tell you all the basics of the I2C protocol. What it is, where it comes from and also how it… Read More »What exactly is I2C?