**** BEGIN LOGGING AT Sun Jan 21 03:00:02 2018 Jan 21 04:11:49 Has anyone here used a bbb or a pocket beagle for implementing a MIDI controller using the PRUs for reading the pots, buttons. and encoders? Jan 21 04:12:00 Any advice for someone considering this? Jan 21 04:39:29 1 no, 2 I suggest testing the basic concept first with IO you are familiar with Jan 21 04:41:34 The PRUs are the new element for me. Jan 21 04:42:15 I've been doing I/O with AtMegas, but they aren't fast enough for the job. Jan 21 04:43:50 The most tight real time thing is timing between two switch closures on a piano key. That's how velocity sensitivity is done on synths. Jan 21 04:44:31 There is a piece of elastomer with two bits of conductive material, and one closes before the other. Jan 21 04:44:48 That gets pushed down by the key. Jan 21 04:46:17 So to get a good range of velocity, you need to count very fast and deterministically. That won't get done on the ARM. And the 62.5ns cycle on AtMegas won't do that well for a 49 or greater key keyboard I don't thing. Jan 21 04:46:20 think Jan 21 04:46:43 Sorry for rambling. Jan 21 04:58:39 You can use the A2D for key changes if you so desire. It can sample quite fast. As for the PRU that would require a bit of work. It is it's own machine and requires some programming (not just setting up registers). As I said experiment first and prove your idea a bit. The encoder part is something that already exists for a PRU I believe (IE code exists). Jan 21 04:59:49 Dang it's late Well I need sleep I get up somewhat earlier on on the marrow. Jan 21 06:26:54 want a know is there any tool for communication via CAN between two BBB Jan 21 06:30:52 ? Jan 21 06:38:57 if you want to test CAN try cansend/candump Jan 21 21:02:29 ah, SanCloud now finally sells the BBE in an online store Jan 22 00:48:14 UK dealer in stuff **** ENDING LOGGING AT Mon Jan 22 03:00:02 2018