Morse Code Circuit

This is a DIY Morse code circuit using a switch. While many morse code kits can be bought, and used for the enjoyment of communicating in morse code(especially for younger users), it is a project that can easily be built on your own with just a couple of components. Building a project yourself is all the more satisfying and can be as enjoyable as the product itself!

1. A single Breadboard
2. 120 ohm resistor(link)
3. LED
4. Buzzer
5. Switch
6. jumper wires(link)
7. 3v battery pack(link)
8. 3V battery(link)

This circuit incorporates a battery, resistor, LED, buzzer, and switch. The circuit diagram above displays how the circuit works, with both LED and buzzer turning on upon the switch being "switched on".

Start by connecting your switch to the breadboard. For my example, I placed the switch on column f, rows 5-7 of the breadboard.

From there, I connected the positive end of the buzzer(long leg) to pin 7, and the negative end of the buzzer(short leg) to pin 10.

To connect the positive rail, I used a double ended jumper wire from pin 6(middle pin of the switch) to the positive rail of the breadboard.

To connect the negative rail, I used another double ended jumper wire from pin 10(short leg of buzzer) to the negative rail of the breadboard.

Now, the buzzer has a complete connection.

It is now time to add the LED to the morse code circuit as well.

Start by connecting the positive end of the LED(long leg) to pin 7. This will be next to the switch and one side of the buzzer.

The negative end of the LED(short leg) will go to pin 4, or any other pin that has NO connections thus far.

To add the 120 ohm resistor, which will help limit the amount of electricity going to the LED, connect it to the negative end of the LED. The second end of the resistor should go to the negative terminal of the breadboard.

Congrats! The LED is fully connected as well.

While the circuit is now fully working, you could choose to hide the breadboard and wires, and decorate your project.

To decorate using a "newspaper wallpaper" paper cup, you must first extend your components above the breadboard. To do this, I used single leg jumper wires to raise the switch, LED, and buzzer off of the breadboard.

Then, cutting holes in the decorated cup(you could use a "Top secret wallpaper" to surround the paper cup as well), I added these components to the top of cup.

Now that your project is completed, you can use morse code "dahs" and "dits" to send messages to your friends and family! Do so by switching the switch on and off at different lengths of time!