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rwaldron / johnny-five

JavaScript Robotics and IoT programming framework, developed at Bocoup.
http://johnny-five.io
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Johnny-Five & Bleno collision - Raspberry Pi 3 #1266

Closed yakeer closed 6 years ago

yakeer commented 7 years ago

Hey, I'm trying to implement both Johnny Five, and Bleno framework together. Once I init the board, the hci0 seems unresponsive, and I cannot get it to work again until I reboot the pi.

Anyone has ever encountered this collision/issue? Any fix?

don commented 7 years ago

@yakeer it looks like raspi-serial is causing a problem

https://github.com/nebrius/raspi-io/blob/f97acd085e70cfa93075a1d80cf5b5be5fb201f9/dist/index.js#L19

don commented 7 years ago

@yakeer change the raspi-serial DEFAULT_PORT to /dev/ttyS0 since /dev/ttyAMA0 is mapped to Bluetooth on the RPi 3. (@sandeepmistry tracked that down.)

https://github.com/nebrius/raspi-serial/blob/823eb9470c393a6e7487fe9c3bedc12a35302dc1/dist/index.js#L37

rwaldron commented 7 years ago

@nebrius ping

nebrius commented 7 years ago

Yep: https://github.com/nebrius/raspi-serial/issues/3

nebrius commented 7 years ago

I just published v7.3.0 of raspi-io, which now disables serial support in Raspi IO on the RPi 3 by default, and I included steps on how to enable it in the wiki.

Note: /dev/ttyS0 isn't a full-fledged UART, it's this funky software emulated thing. As such, I felt it prudent to just disable serial and leave it up to users to decide if they want proper serial or bluetooth, because unfortunately it's not possible to have both on the RPi 3 :(

sandeepmistry commented 7 years ago

@nebrius awesome!

I think the new Raspberry Pi Zero W will have the same problem as the RPi 3, did you enable the same behaviour for it as well?

nebrius commented 7 years ago

I think the new Raspberry Pi Zero W will have the same problem as the RPi 3, did you enable the same behaviour for it as well?

No I didn't. I don't have a Raspberry Pi Zero W in my possession yet, so I can't get the board revision. Do you (or anyone else reading) have one on hand by chance? If so, can you run cat /proc/cpuinfo on it and paste the output here?

sandeepmistry commented 7 years ago

Yes, here you go:

pi@raspberrypi-zero-w:~ $ cat /proc/cpuinfo 
processor   : 0
model name  : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS    : 997.08
Features    : half thumb fastmult vfp edsp java tls 
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part    : 0xb76
CPU revision    : 7

Hardware    : BCM2708
Revision    : 9000c1
Serial      : 0000000018b693a9

hciattach is configured for /dev/serial1 which maps to /dev/ttyAMA0 like the Raspberry Pi 3.

pi@raspberrypi-zero-w:~ $ ps -eaf | grep hciattach
root       503     1  0 23:10 ?        00:00:00 /usr/bin/hciattach /dev/serial1 bcm43xx 3000000 flow -
pi         670   651  0 23:13 pts/0    00:00:00 grep --color=auto hciattach
pi@raspberrypi-zero-w:~ $ ls -l /dev/serial1 
lrwxrwxrwx 1 root root 7 Mar 25 02:14 /dev/serial1 -> ttyAMA0

Let me know if you need anymore details.

mwittig commented 7 years ago

I just published v7.3.0 of raspi-io, which now disables serial support in Raspi IO on the RPi 3 by default, and I included steps on how to enable it in the wiki.

@nebrius Thanks so much. Seems like this is the solution to the issue I have filed earlier. https://github.com/nebrius/raspi-io/issues/83

nebrius commented 7 years ago

Following up, this should be addressed in Raspi IO 8.0.0. Let me know if it works for you!

sandeepmistry commented 7 years ago

The upstream changes look good to me! @nebrius thanks for looking into this!

dtex commented 6 years ago

It looks like @nebrius addressed these issue in rasp-io v7.3.0 and v8.0.0 so I'm going to close this. Pleaes re-open if I have missed something.