I just finished the Morse code communicator for my girlfriend. I’m really excited to start learning Morse code so we can joke with each other in public and nobody will know what were laughing about! Here are some images. The device on the left is my girlfriends, the one on the right (the crappier one) is mine.
I’ve decided to learn Morse code and managed to coerce my girlfriend into learning it as well. I thought it would be fun to say funny things to eachother in Morse code, and then laugh hysterically and nobody else would know (unless of course, they know Morse code). I was thinking it would be cool to have a portable device to generate beeps so we could communicate. I also wanted to put the device inside an Altoids tin because I have a bunch of left over ones and they’re the perfect enclosure for all sorts of projects.
I don’t know a lot about electronics, my area of expertise is mainly programming. However, I have taught myself a lot over the years. I have an ok grasp on electronics. So, I looked around the internet for some hints. I figured a 555 timer could be used to generate a tone and that I could activate that tone from a push button. I found a pretty good schematic and decided to use it. I made a few modifications to it.
The results are pretty good, I replaced both of the potentiometers with resistors because I found it worked better with fixed values. Also, the schematic uses a speaker, due to the size restraints, I opted to use a piezo speaker. It sounds really good.
One thing I wanted to do was add an LED to the box because visual output is cool. However, all of my LEDs are broken for some reason.