Learn how to make 7 Segment digit using LED.
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Step 1: Watch This Video
Step 2: Material List
- Card board,
- 8 LEDs,
- 8 220 Ohm resistor,
- Male header,
- Dotted board,
- Aluminum foil,
- Arduino board.
Step 3: Print 7 Segment Digit Image
Print this image in a paper
Step 4: Cut the Layout
After printing the 7 segment pic, temporarily fix it on thermocol and then cut the layout carefully..
Step 5: LED Fixing
Next, take a card board and mark the layout, and make some hole as shown in the picture. Now bend all LED at 90degree angle and fix it on card board using a glue gun.
Step 6: Connection
In the circuit diagram picture, you can see the connection of all LEDs. For simplicity, I have made a simple circuit board. In this circuit board, I had just connected 8 220 ohm resistor with 9 headers pin with a series connection. Then I had connected all the positive terminal with one single wire and then all -Ve terminal with individual wire and next I have connected it with my circuit board.
Step 7: Connect All Anode
Now connect all the Anode (For common Anode 7 segment digit), and solder it.
Step 8: Connection of Cathode
Connect all the cathode to an individual wire.
Step 9: Connection With Board
Connect common anode to the board and all cathode pins with their respective pin on board like in the picture
Step 10: Assemble
Now fix the circuit board with hot glue at the back side and fix all wire and put a white paper on it.
Then put some glue on the front side and fix the thermocol.
Step 11: Cove With Aluminium Foil and White Paper
Using some aluminium foil cover all segment like the picture. And cover the front side with a white paper.
Step 12: Connect and Run.
you can use Arduino board or any other board to run, I am using arduino board. So the connection with board and sketch is here. Download and upload ...................................
Step 13: Digit
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