Raspberry Pi Forums

rzusman

Are you indented correctly?

rzusman

It's NOT the power supply dropping out!

I don't understand why everyone is focused on that - if the power supply was dropping out, the Pi would reboot or hang.
The OP has already stated that this isn't happening.

rzusman

You need to use a transistor or a FET to drive the relay from the port pin.
There are a million posts on this subject - search for it.

rzusman

Ive had off-the-shelf 5V 2A psu, and it did the same. Thats why I tried the DIY way. The pi has a HiFiBerry Digi+ connected and its streaming to DAC via coaxial connection. The interruptions last maybe 1 seconds, and then it resume playing music. no reboot. The pi is playing from USB stick atached ...

rzusman

Does the Pi actually reboot?

rzusman

You shouldn't be using a loop for precise timing anyway...

rzusman

What do you want, exactly?

rzusman

A friend of mine has developed an Xcode cross-complier toolchain for the Pi,. which I am using to do my Pi Compute Module development on.
It works great, but I'm not sure what wrinkles compiling the Kernel throws in.

It's based on the this:
http://www.jaredwolff.com/toolchains/

rzusman

sonium wrote:Are there also any through-hole mounted ZIF connectors for the camera cable?

I really doubt it.

rzusman

Just read the data sheet:
https://www.nxp.com/documents/data_shee ... HCT595.pdf

A rising edge on STCP with /OE low and /MR high clocks the data in the shift register to the outputs.

rzusman

Just look for a shift register with a strobe, like so:
http://www.ti.com/lit/ds/symlink/tlc6c5912-q1.pdf (they call it a "Register Clock" here).

rzusman

Depends on what you are doing. Honestly, you've raised so many threads about what language go learn etc., just do it! Learn Python. I have nightmares when these trisisters get put in CPU's . ?10 how the heck do you program that? Only thing I can think of would be a 3 option case statement in assemb...

rzusman

Only if you know exactly what you are doing. Right now, the standard way of getting an OS onto the Compute Module is to use 'dd' to copy if block-by-block. If you knew exactly where the OS ended (and none of your apps/data resided in those low blocks), you could just dd that amount of data onto it. ...

rzusman

Firmware?
The compute module gets flashed with an OS, like Raspbian.
Just download a suitable OS, and flash it to the CM - I use Minibian (it's lightweight, so it doesn't take forever to download or flash).

rzusman

OP - Did you know that the Terminal supports drag-and-drop in OS X?
If you can SEE the file, just drag and drop it onto the terminal window after "if=" and it will fill the path in for you.

rzusman

You need an Analog to Digital converter. There are many of them. One that is popular around here is the MCP3008: https://www.adafruit.com/product/856 The simplest way to convert 4-20mA to a voltage that the A/D can read is to pass it through a resistor - 100Ω will give you .4V-2.0V, which is a reaso...

rzusman

Make your own caller ID decoder:
https://www.maximintegrated.com/en/app- ... vp/id/5004

rzusman

For Jessie put an executable file in.. /lib/systemd/system-shutdown/ It will get executed at the end of a system shutdown. The shutdown 'type' will also be passed as the first argument to this script.. "poweroff" or "halt" etc... if needed by your script. I use this method to tr...

rzusman

That's only because the batteries have less capacity.
In general, buck converters are slightly simpler and more efficient than boost converters, but the choice will depend on your situation.

rzusman

create rc_log in root (touch /root/rc_log) then try adding echo "About to start irexec\n" > /root/rc_log before /etc/init.d/lirc irexec -d /root/.lircrc and echo "Finished launching irexec\n" > /root/rc_log after and see if both commands end up in the log. You can also add: exec ...

rzusman

Hang on.

Is your listing of rc.local a full listing?

Because, if so, it's not a valid script.

It's missing
#! /bin/sh -e

as the first line.

rzusman

Are you sure rc.local is being executed?
Test it.
Is it marked as executable (chmod +x)?

rzusman

is 'root' an actual directory? (Neither of my Pis have a /root directory)

Where is .lircrc located?

rzusman

What does your rc.local look like?

rzusman

is readWifi() thread safe?

Where is this defined?

Search found 347 matches

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