Introduction: USB Arduino Morse Code Key
Ever wanted to type on a computer with a morse code key or to learn/teach morse code? You are on the right page!
For my other projects, check out my website calvin.sh
Supplies
- 1x Morse code key (I got a MFJ-550 morse code key)
- 1x Arduino Micro
- 1x Buzzer (CEET120B085)
- 6x Jumper shunts
- 2x Single core jumper wires
- 2x Jumper wires
- 2x 6-32x3/8 screws
- 2x 6-32 nuts
- 4x M3x12 screws
- 4x M1.4x4 screws (optional)
- 4x Rubber feet (optional) (I got these: Rubber Feet, 232 Pieces Black Adhesive Bumper Pads Self Stick Furniture Bumpers Buffer Pads, 4 Shapes for Doors, Cabinets, Drawers by AUSTOR)
Step 1: Code
You can find the code on Github.
Upload this code to the Arduino.
Step 2: 3D Print
You can find/edit the model here.
Step 3: Put in the Arduino Micro
- 1x Arduino Micro
- 6x Jumper shunts
Step 4: (optional) Screw the Arduino Micro to the Base
- 4x M1.4x4 screws
Step 5: Connect the Buzzer
- 1x Buzzer (CEET120B085)
- 6x Jumper shunts
- 2x Single core jumper wires
Step 6: Connect the Morse Code Key
- 1x Morse code key (I got a MFJ-550 morse code key)
- 2x Jumper wires
- 2x 6-32x3/8 screws
- 2x 6-32 nuts
Step 7: Screw the Base to the Top
- 4x M3x12 screws
- 4x Rubber feet (optional)
Step 8: Start Typing
Here's a US navy training video on sending morse code.
Plug it into your computer and start typing.
6 Comments
Question 5 months ago
Looks like a great idea. Do you know if the connection is the same for the Nano as the Micro?
7 years ago
Why did you use internel pulldown. Why could you not just use a 10k resistor.
Reply 7 years ago
Why wouldn't I use internal pulldown?
Reply 7 years ago
I made a mistake. There is no built in pulldown resistor. there is only a 20k resistor that can be used to pull it high but I would expect that you would not want to pull high, you want to pull low.
7 years ago
Nice! That is really cool. This would be great for teaching people how to use morse code.
Reply 7 years ago
Ya it is, I got three people interested in morse code the first day when I brought it to school.