read out carolling christmas bells

Author	Message
Frank N. Furter Guru Joined: 28/05/2012 Location: Germany Posts: 1143	Posted: 01:45pm 02 Nov 2025       I want to recreate the carolling christmas bells with a xylophone. To do this, I need the sequence of the bells. I don't care about the frequencies — I just want to know when to strike which tone element. Reading it from the musical notes is too tedious for me. In principle, I need a 12-channel logic analyzer to record the sound sequences. I'm just not sure how I can achieve that with an Picomite. I would have 12 inputs there, but I can't trigger an interrupt for each of them. I could connect each of the 12 inputs to an additional input via diodes and trigger an interrupt there. ...or should I just poll the inputs? Can I read in all the pins at once? Frank