Arduino Using an SD Card and Digital Signage On a Raspberry Pi - Let's Make it - Episode 50


This week we show you how to use an sd card with an arduino to log data. We also show you how read a file on the sd card, manipulate files and get details like card size, type and directory of files.

 In our second segment we show you how to turn a raspberry pi into a digital signage device. All for nothing more than the cost of the raspberry pi.

Memory Management and a Web Server with Arduino - Episode 49


This week mike survives a technology meltdown to bring some personal experiences with memory management on the Arduino, he thinks you will be surprised about how little memory there is in your sketch for the Arduino.

LED Light Strips and the Arduino - Let's Make It - Episode 44

As Christmas is coming near and the time for lights for the holidays are coming close.  We look at how to control an entire 50ft roll of the RGB LED strips using an Arduino.  It is much easier than you probably think.

The RainbowDuino Woes - Let's Make It - Episode 41

This week we discuss some viewer emails, talk about the Udoo that mike got this week.  

Then Bob shows us the rainbowduino from Seeed Studio and talks about some of the problems he has had and also some of the things that he has still not gotten to work.

Smart Buttons In Action - Episode 40

This week we take one of the NKK Smart Switches we showed you last week and make it do stuff.  Making it work is pretty simple, we show you just how simple in this video.

We also take a look at the Arduino Due and Arduino Ethernet.  Also, an update on the Udoo.  It is shipping and mine should be here soon.

Arduino Adventures and Surface Mount Soldering - Let's Make It - Episode 37 - -

This week we take a look at a book specifically written to teach kids the Arduino.  The book is called theArduino Adventures.  We look at a kit of parts put together specifically for this book.

Then, we take a look at my adventures in surface mount soldering with some time lapse video I created while doing some flowing of solder on boards with surface mount parts.

Stepper and DC Motor Control With Arduino - Let's Make It - Episode 36 - -


This week we use an Adafruit shield to show easy it is to control a stepper motor and a DC motor.  We use the rotary encoder from last week to control both the stepper motor and DC motor speed and direction.

NXP Semiconductors Interview and Rotary Encoders - Let's Make It - Episode 35

This week we have a jam packed episode, we have John Hull from NXP semiconductors who talks about the i2c, the protocol the history and much more. We also show how a rotary encoder works in preparation for next week's show.

For Show Notes go to:

USB Keyboard/Mouse Emulation With An Arduino - Let's make It - Episode 34

This week we show you how to make the Arduino act like a keyboard and/or a mouse so that you can build your own controller for your computer.  In this example we use a joystick as the mouse and 4 buttons to show how you can send keyboard commands.

For Show Notes go to:

Input/Output Expansion With An Arduino - Let's Make It - Episode 31 - -

So what do you do if the inputs and outputs on your Arduino are not enough for you and you need to add more.  In this episode we talk about just one of the ways.  We introduce you to a 16 bit I/O chip that runs over i2C.  You can put up to 8 of these chips on the i@c bus to add 112 I/O ports to your Arduino using just 2 pins on the Arduino itself.

The chip we demonstrate is a Microchip MCP23017.  You can get that chip from our online store at

Multiplexing with 14-segment display - Let's Make It - Episode 29

This week we go through multiplexing.  Bob gives us a presentation that he gave last weekend on how multiplexing works and how to use an arduino timer to help with the multiplexing.

For Show Notes go to: