This arduinoboy kit has been replaced by the Teensyboy Pro. I am no longer offering assembled kits. These are still for sale, but I can’t offer any support. That means don't email me about this product.

Here is a table that explains the difference between various Arduinoboy models:

Variant Price USB MIDI DIN MIDI Notes Arduinoboy $16-$22 (kit) ✕ ✔ DIY kit only. Arduinoboy Lite $25 ✕ ✔ (out only) Uses special fork of Arduinoboy code the improves midi out, but only does midi out. Arduinoboy Pro Micro $33 ✔ ✕ It's tiny! About the size as a thumb drive. Arduinoboy Pro

$45 ✔ ✔ Functionally identical to Arduinoboy, but smaller. USB-C connector, 3.5mm TRS jacks for MIDI In/Out

It is important to understand that you’re buying a kit. That means it’s a PCB with unsoldered components. For assembly, you’ll need a soldering iron and decent soldering skills. All the components are through-hole, so it should be easy enough for beginners. That said, I take no responsibility for any damage you cause to your kit during assembly. There is strictly no warranty whatsoever included with the kit. No returns or refunds will be accepted.