LILYGO USB Microcontroller ATMEGA32U4 Development Board Virtual Keyboard 5V DC 16MHz 5 Channel
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I do not know how to access the IO but it can be opened partly (see picture). It is available in the Arduino list as a Leonardo device. I test it with a simple blink program to get the led flashing and it works.
Great little product that can be disassembled to gain access to the GPIO ports and other connections. It's essentially an Arduino Leonardo clone, so consider that when thinking about how to use it.
Ok, Lily...
prós: -compacto -discreto -funcional -robusto cons: Nenhum, é um excelente produto para o fim o qual é destinado... se você precisa de acesso as gpio procure outro modelo esse não foi feito para usar as portas
product arrived firmly in my possession I haven't had a chance to try
Fonctionne nickel
works as intended
good quality and fast shipping
Some manuals would be better but it's good
excellent in accordance with my order