1-4 Digit Counter for Arduino PART NO. This project is ideal to understand the logic of work of a counter by utilizing Arduino code since you have available 4 programs: 1 for 1-digit, 1 for 2-digit, 1 for 3-digit, and other for 4-digit counter with one single 4-digit panel. Here, you can upload the code from 1, 2, 3, or 4 digits according to what you want to use. The main components to this kit are a 4-digit panel and 7 resistors while the star that produces the magical result is an Arduino Uno.. Video for this project in the following link: http://www.youtube.com/watch?v=RrAq_A7OJ94 http://www.instructables.com/id/1-4-Digit-Arduino-Counter/ Time Required: 4 hours depending on experience Experience Level: Intermediate Required tools and parts: Soldering Iron Solder Helping Hands Wire Cutters/Strippers Needle Nose Pliers 1 meter of wire #22 Bill of Materials: Qty Jameco SKU Component Name 1 2152438 Arduino Uno Proto Shield (PCB only) It's the base of this project 1 2006836 DISPLAY,COMMON ANODE,RED,4 DIGIT,0.56 INCH H,697nm,RIGHT (RHDP),2.1Vf,1.0mcd It's the main component of this project 1 160882 Connector Unshrouded Header 40 Position 2.54mm Solder Straight Thru-Hole It's necessary for interfacing both the main circuit of this project and Arduino platform. 10 690700 Resistor Carbon Film 220 Ohm 1/4 Watt 5% (In Bags of 10 and 100) It's an important part of this project. 1 2151486 Arduino Uno R3 DIP Edition (Revision 3) It's vital so that this project functions. 1 222608 CABLE,USB2.0,A/B,3 FEET,BLACK,USB-A MALE TO USB-B MALE It's vital to upload the Arduino code to this project from your computer. Step 1 - Bill of Materials 1 PCB 1x4 Digit LED Display Panel 1x40 pin male headers pins 7 Resistors of 220 Ohm 1 Arduino Uno 1 USB-A male to USB-B male cable HAND DECIMAL POINT Step 2 - Separate 5 & 6 Pins Cut 5 & 6 pins for using them later Step 3 - Project's Diagram Check the project's diagram so that you can understand what you will need in the project. Step 4 - 1x4 Digit Seven Segment LED Display Identifying the pins of this component, you can work without any problem with this item. Step 5 - Insert the Pins Reserved Inside the Arduino Sockets Insert the Pins Reserved Inside the Arduino Sockets those of 1x5 and 1x6 pins Step 6 - Mount the PCB on your Arduino After mounting the PCB on your Arduino, proceed to solder the tips of each pin you will be seeing in the PCB. Step 7 - Dismount the PCB of your Arduino Dismount the PCB of your Arduino for checking its look. Step 8 - Mount the 1X4 Digit Display Panel After mounting the 1x4 digit display panel, you can begin to solder its ends of connection to the PCB. Step 9 - Installing the Resistors of 220 Ohm After installing the resistors of 220 Ohm, you can complete all of electrical connections of this project. Step 10 - Mount the Done PCB on your Arduino After mounting the done PCB on your Arduino, connect USB-A male to USB-B male cable between your project and your computer. Step 11 - Uploading One Digit Arduino Counter Code You can upload the code for one digit Arduino counter in the following ink: http://pastebin.com/YfywF6jD Step 12 - Uploading Two Digit Arduino Counter Code Upload two digit Arduino counter code in the following link: http://pastebin.com/bqmjhHgX Step 13 - Uploading Three Digit Arduino Counter Code Upload three digit Arduino counter code in the following link: http://pastebin.com/8WEvm1tW Step 14 - Uploading Four Digit Arduino Counter Code Upload four digit Arduino counter code in the following link: http://pastebin.com/Wm1DPSwc