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
In a previous post, I have shown you how to use the MCP23017 16 Port I2C I/O Port extender with the standard Wire library, as… Read More »MCP23017 with Adafruit Library
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 our last post, we started looking at the workings of the I2C protocol. In case you missed that, you can read about that here.… Read More »I2C between Maker Nano and Kid-Bright32 (Esp32)
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?