Attiny88 Development Board Problem

Thanks for your reply. I can show wiring if you want but I do not think wiring is the problem. When I remove any 7 buttons randomly from the code, it works fine. Wiring was still same with before removing them.

Thanks for your reply.

I do not actually want them all to work at the same time. I want to use totally 16 different buttons one by one. Is the code in the project prepared for all of them to work at the same time? I do not know much about coding.
Edit: The problem was related to the maximum payload of NRF24, as you said. It was fixed by reducing the number of max shortcut keys. Thanks for your replies and opinions. :slightly_smiling_face: