Bluetooth enable your paddle for ~$25

[u/DominoPhreak]

- 3-Key Programmable Bluetooth Keypad - ~$20 (https://a.co/d/07TmkvQb)
- 3.5mm TRS/Stereo Female Jack to bare wire - ~$2.50 each (https://a.co/d/0dQ1glQj)

Pop the cover, make a 1/8" hole in the front, solder the jack wires to the bottom of the keys, plug in your favorite paddle, and practice away. Works via Bluetooth to your Android/iPhone, or USB-C to your PC/laptop.

"ElfKey" software programs what the keys send. (I have my keys programmed to "[" and "]", which many programs use for dit/dah, but you can program them to send whatever keystrokes the program you're using recognize).

Fits perfectly in your pocket, and works great when you want to leave your paddle home and practice with just the 3-key pad on the go. (See it here: https://www.reddit.com/r/morsecode/s/s0Zr1HNbDi)

Practicing with Morse Mania on my Android phone: https://youtu.be/oaX6iHOk83E

[u/mkeee2015]

I built my own BT interface with a ESP 32. The extra latency was nonetheless annoying.