Arduino Workshop - Parallel LCD Project 2: SparkFun Parallel LCD

Hardware Required: Arduino Uno board SparkFun 16x2 Parallel LCD

Arduino Workshop - Parallel LCD Project 1: DFRobot Parallel LCD

Hardware Required: Arduino Uno board DFRobot 16x2 LCD Shield

Schematic: No schematic necessary. All connections are made by installing the LCD Shield directly onto the Arduino's sockets. Note: The boards tested use different signal and data pins than the default examples in the LCD Library. Our LCD Shield uses pin 8 for Register Select, Pin 9 for Enable, and pins 4, 5, 6, 7 for data - connecting to Arduino pins 12, 11, 5, 4 , 3 and 2, respectively. You cannot change these pin connections, but must make sure your Sketch code specifies the actual pins being used: // the syntax to specify the connections used by the LCD Shield should read: LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

Arduino Workshop - Serial LCD Project 2: Parallax Serial LCD

Hardware Required: Arduino Uno board Parallax 16x2 Serial LCD

Schematic: Use the breadboard to connect a Parallax serial LCD module. Insert the three pins on the back into the breadboard, then run patch wires from the data, +5v, and Ground.

Arduino Workshop - Serial LCD Project 1: SparkFun Serial LCD

Hardware Required: Arduino Uno board SparkFun 16x2 Serial LCD

Schematic: Using the breadboard to connect a SparkFun serial LCD module. You can just as easily connect the LCD wires directly to the Arduino.

Arduino Workshop - Project 06: Traffic & Pedestrian signal

Hardware Required: Arduino Uno board LED (x5) 330 ohm (x5), 10 K ohm resistors Pushbutton switch (N.O.) jumper wires

Schematic:

Arduino Workshop - Project 05: Push-On, Push-Off - Part 2

Hardware Required: Arduino Uno board LED (x2) 330 ohm (x2), 10 K ohm resistors Pushbutton switch (N.O.) jumper wires

Schematic:

Project Steps: Assemble an LED and pushbutton, following the directions for project 4. Add a second LED: Insert a second LED in the breadboard Connect a wire between the ground and the short pin of the second LED Connect a 330 ohm resistor between the D12 on the Arduino and the long-leg of the LED Change the program to turn LED2 on when LED1 is off, etc.. Save a copy of the Project4 code as a Project4b (file, save-as, enter new name) Change all of the "LED" variables to "LED1" Copy each line containing "LED1" and paste as a new line immediately following it. Change "LED1" in each of the duplicate lines to "LED2", for example: const int LED1 = 13; const int LED2 = 13; Change the Digital Output used for LED2 to 12 (const int LED2 = 12;) Change the lines that turn LED2 on and off to the opposite of what LED1 has: digitalWrite(LED1, HIGH); digitalWrite(LED2, LOW); Verify your code and upload to the Arduino.

Arduino Workshop - Project 04: Push-On, Push-Off - Part 1

Hardware Required: Arduino Uno board LED (any color) 330 ohm, 10 K ohm resistor Pushbutton switch (N.O.) jumper wires

Schematic:

Arduino Workshop - Project 03: Servo Motor Sweep

Hardware Required: Arduino Uno board Servo motor jumper wires

Schematic:

Arduino Workshop - Project 02: RGB LED

Hardware Required: Arduino Uno board RGB LED 330 ohm resistors (x3) jumper wires

Schematic:

Arduino Workshop - Project 01: Blinking LED

Hardware Required: Arduino Uno board LED (any color) 330 ohm resistor jumper wires

Schematic: Note: most Arduino modules have an LED connected to D13 already. Your LED should blink at the same time it does.

Project Steps: Insert the LED into the breadboard Connect a wire between the ground and the short pin of the LED Connect a 330 ohm resistor between the Digital pin 13 (D13) on the Arduino and the long-leg of the LED Connect the Arduino unit to your computer with the USB cable Open the Project1 sketch into the Arduino software and upload it to your module Things to try: Code: Change the blink rate from 1 second to 3 seconds Code: Change the blink rate to "strobe" at 50 times per second. Can you change it to blink at 60 times per second? LED: What happens if you reverse the LED (resistor & short-leg to D13, long-leg to GND)? LED: What happens if you reverse the LED but connect the long-leg to +5V? Code & LED - Change the sketch to use an LED connected to D7 instead of D13

Common Electronic Components used with Arduino

Component:	Schematic:	Image:
Resistor, units = Ohms Ω K = 1000, M = 1000000 Resistor values can be determined by "decoding" the color stripes on the device. The first two colors are the value, the third stripe is a multiplier (number of zeros to add). The fourth stripe is usually metallic and indicates the tolerance.
Potentiometer (adjustable / variable resistor) Units = Ohms Ω K = 1000, M = 1000000 Potentiometers may have a numerical value printed on the side or bottom. Read this similar to the color stripes. In the image, you can see a value of 103; In a color code, this would be Brown-Black-Orange = 10000 ohms or 10K ohms.
Photo Resistor, units = Ohms Ω K = 1000, M = 1000000
LED (Light Emitting Diode) The short leg connects to the ground or negative, and long leg to a positive voltage source in your circuit.
Diode The stripe on the barrel indicates the cathode and corresponds to the "T" side of the schematic.
Switch (pushbutton, toggle, momentary contact) Other switch configurations include: DPST - Double pole, single throw SPDT - Single pole, double throw DPDT - Double pole, double throw	SPST - Single pole, single throw:
Relay The 5-pin configuration pictured corresponds closely to the schematic, with the 2-pin end for the (electromagnet) coil, and the 3-pin connection for the switch.
Transistor - NPN
Ground The Arduino UNO modules have three pins identified as a ground connection. This is usually connected to the negative connection of your power source as well.
Battery a 9v battery clip (red=positive, black=negative):

Check out Arduino Workshop - Project 01: Blinking LED from one of our In-Store Clinics.

Stayed tuned for more Arduino workshops posted here!

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