LED Arrays - Let's Make It - Episode 24

This week we talk about how to use the feature packed shift register we used on the multiple 7 segment displays 2 weeks to control an LED array.

For Show Notes go to: http://tech-zen.tv/episodes/shows/make-it-work/episodes/led-arrays-episode-24

VU Meter - Let's Make It - Episode 23

This week we make a simple VU meter using an Arduino.  We take audio input from either a microphone or a line level input and use a small transistor to amplify the signal, add some leds and some basic code to create a VU meter that has a switchable peak meter.

For Show Notes go to: http://tech-zen.tv/episodes/shows/make-it-work/episodes/vu-meter-episode-23

More Shift Registers - Let's Make It - Episode 18

This week we expand on shift registers from last week and add another chip to demonstrate how you can daisy chain them to control more things with the same 3 pins off of the Arduino.  Oh, did I mention that I have a special guest on the show tonight?  Watch and Meet Bob.

Shift Registers And An Arduino - Let's Make It - Episode 17

This week we attach a shift register to an Arduino to demonstrate how to use a shift register to multiply the number of outputs that you can have on an Arduino.

This is our first week on using shift registers and we go over the basics of sending the serial data to the shift register from the Arduino.

For Show Notes go to: http://tech-zen.tv/episodes/shows/make-it-work/episodes/shift-registers-and-an-arduino-episode-17

Controlling a Servo with an Adruino - Let's Make It - Episode 12

This week on Let's Make It we have an Arduino control a servo like you find in model airplanes and cars.  In the process of showing you how to control a servo we also introduce the concept of Pulse Width Modulation (PWM) and Pulse Position Modulation (PPM).

For Show Notes go to: http://tech-zen.tv/episodes/shows/make-it-work/episodes/controlling-a-servo-with-an-adruino-episode-12

Keypad Input To An Arduino - Let's Make It - Episode 11

This week we attach a keypad to an Arduino and show you how you can easily accept input.  Then we build a combination door lock with that same keypad.  For both projects we also use the serial LCD that we learned in Episode 5.


For Show Notes go to: http://www.tech-zen.tv/episodes/shows/make-it-work/episodes/keypad-input-to-an-arduino-episode-11

Checking Ustream With An Arduino - Let's Make It - Episode 10

This week we do step 1 of our on-air light.  We make the arduino check the status of the live Ustream channel.

To do this we use an ethernet shield to poll the Ustream API to check the status of our strem.  We learn how to setup the ethernet shield and then poll a web server.

We also introduce you to JSON and a new JSON Library in this episode of Let's Make It.


For Show Notes go to: http://www.tech-zen.tv/episodes/shows/make-it-work/episodes/checking-ustream-with-an-arduino-episode-10

Rolling The Dice With Randomization - Let's Make It - Episode 9

This week on Let's Make It we build a random dice roller.  We learn how to use randomization in our Sketches.  This project will randomly roll the die between 15 and 25 rolls before landing on the final number.


For Show Notes go to: http://www.tech-zen.tv/episodes/shows/make-it-work/episodes/rolling-the-dice-with-randomization-episode-9

Making a Stoplight With An Arduino - Let's Make It - Episode 8

This week we create a working stoplight with an Arduino.  And we go so much further than just blinking lights.  We have 2 stop lights and sensors to know when a car is waiting.

Also, in this episode we introduce state tables and a new structure that we have not talked about before, the switch or case statement.

You even get to see me mess up by not saving my examples before the show.  But this is good because it demonstrates just easy it is switch the cascading if-then-else to a switch/case structure.


For Show Notes go to: http://www.tech-zen.tv/episodes/shows/make-it-work/episodes/making-a-stop-light-with-an-arduino-episode-8

Sensor Fun With Arduino: 1 Massive Failure, but 4 Successes - Let's Make It - Episode 6

This week on Let's Make It we have some sensor fun.  We play with 5 different sensors connected to the arduino.  And you get to watch as we have a colossal failure with one of the sensors.  We did not edit it out so you get to see the problems we had.  Funny how things stop working when it is show time.

We show you the Virtuabotix DHT11 Digital Temperature / humidity sensor, The Virtuabotix MMA7361 Three Axis Accelerometer, the HC-SR501 Human Sensor Module (motion detector), The Ultrasonic HC-SR04 Distance Sensor, and our big failure this week, the SainSmart Color Recognition / Discrimination Sensor TCS3200d / TCS230D.


For Show Notes go to:http://www.tech-zen.tv/episodes/shows/make-it-work/episodes/sensor-fun-with-arduino-1-massive-failure-but-4-successes-let-s-make-it-episode-6

Adding an LCD display to the Arduino - Let's Make It - Episode 4

This week we are going to show how simple it is use an LCD with an Arduino.  We will use the LCD in future episodes to output information from Sensors and for debugging other applications.

We will give you a schematic so you can quickly connect an LCD to your Arduino.  You will learn how to scroll text, blink text and much more.

Adding Buttons To Our Arduino Project - Let's Make It - Episode 3

In this episode we pick up where we left off last week and add in a breadboard with some buttons to show how the Arduino can take input from the outside using something as simple as a button.

We also cover what button bounce is and some features that are built into the Arduino that will pull a pin to high so that you do not need a resistor in the button circuit.  Lots of good stuff this week.

For Show Notes go to: http://www.tech-zen.tv/episodes/shows/make-it-work/episodes/adding-buttons-to-our-arduino-project-episode-3

Introducing the Arduino - Let's Make It - Episode 2

In this, our 2nd episode of this new show we take a look at the Arduino and everything it can do.  Then we get our hand dirty by creating a couple of programs (called Sketches in the Arduino).  The programs are very simple, so do not worry, no prior programming experience is necessary.