Raspberry Pi Forums

PlanB

I think it's a waveshare knockoff maybe? Either way it's causing more grief than it's worth! So challenging for a UserLand plod like me to tangle with something like EDID!

PlanB

Yeah, my idea of a neat solution too! Alas EDID!= don't work for whatever reason.

PlanB

That's a nice idea except the edid info for the non identifying monitor is wrong, edid wants to use mode4 whereas the non identifying monitor needs mode87. I know what settings the non identifying monitor needs I just can't figure out a way to apply them when it doesn't identify.

PlanB

I've got 2 monitors I use interchangeable with a pi. The HP monitor self identifies root@raspberrypi:/home/pi# tvservice -n device_name=HWP-HP_L1755 as & it is happy with the preferred hdmi settings root@raspberrypi:/home/pi# tvservice -s state 0x120006 [DVI DMT (35) RGB full 5:4], 1280x1024 @ 60.00...

PlanB

Is there indication of what was actually causing the hang in reboot Dougie? I ask because I had a bunch of Jessie Lite PIs that used to reboot reliably then they didn't & I was wondering if some update I did actually introduced the problem?

PlanB

Why does resizing have to be such a headache?! I had no luck with PiShrink (major partition alignment problems) while qemu-img, gparted & every other linux based app I've tried don't work either. Doomed to spend the rest of my days waiting for big fat quarter full 8G sd cards to clone.

PlanB

You can check if it's there or not with i2cdetect -y 1 and read it with import smbus def _getabp(): # reads the ABPDANN005PG2A3 i2c 0-5psi pressure sensor i2c=smbus.SMBus(1) ans=i2c.read_word_data(0x28, 0x01) # sends i2c address & read bit, returns two 8 bit bytes as lsb, msb ans=(((ans & 0x00FF) <<...

PlanB

Nov 9 11:59:02 raspberrypi kernel: [ 408.805131] sierra ttyUSB3: Sierra USB modem converter now disconnected from ttyUSB3 Nov 9 11:59:02 raspberrypi kernel: [ 408.805204] sierNov 9 11:52:00 raspberrypi rsyslogd: [origin software="rsyslogd" swVersion="8.4.2" x-pid="420" x-info="http://www.rsyslog.com...

PlanB

Upgrading from Wheezy was so traumatic, I was hoping to get a bit more mileage out this 'un before the next wrench.

PlanB

I've been using a Jessie lite OS for over a year now but lately it is prone to hang on reboot, always with the same 6 lines. [ OK } Started Show Plymouth Reboot Screen [ OK ] Stopped target Network Stopping dhcpcd on all interfaces... [ OK ] Stopped target Remote target File Systems [ OK ] Stopped t...

PlanB

I got https://www.ebay.com.au/itm/Digital-Barometric-Pressure-Sensor-Module-Liquid-Water-Level-Controller-Board/332319488006?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649 working with this https://hackaday.io/project/25848-a-cheap-24-bit-differential-adc-for-raspberry-pi/log/62897-pytho...

PlanB

The translators I tried mashed the .PDFs pretty bad but it was the same 2s complement output & clocking methodology @ 10/40Hz. I'm loath to email you the dogs breakfast I waded through, I'll see if I can come up with a more legible translation.

PlanB

After a lot of trial & error (the great fallback for those of us bedazzled by networking) I found this works in Jessie. import os import subprocess NET_DIR='/sys/class/net' print; print 'reload daemon' subprocess.call(['sudo','systemctl','daemon-reload']) print 'stop dhcpcd' subprocess.call(['sudo',...

PlanB

There is a nice little differential pressure breakout board (https://www.ebay.com.au/itm/Digital-Barometric-Pressure-Sensor-Module-Liquid-Water-Level-Controller-Board/332319488006?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649) using the HX711s sibling the H710B. My reading of the data s...

PlanB

You don't have a Jessie version of this script by any chance? Jessie does not seem to have anything in /sys/class/net/wlan0

PlanB

Can someone explain the difference between print((([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")] or [[(s.connect(("8.8.8.8", 53)), s.getsockname()[0], s.close()) for s in [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) + ["no IP found"])[0])...

PlanB

I've given up on the Pi zero for low power apps because you can only put USB modems to sleep not switch them off. I can get lower current drain with a full sized board pi2 B+ using os.system("echo '1-1' > /sys/bus/usb/drivers/usb/unbind") in Jessie to physically switch the ports off. It's a difficul...

PlanB

I like this script because it will deliver the pi external ip address without asking a website like info.io to get it s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) try: s.connect(('10.255.255.255', 1)); IP = s.getsockname()[0] # doesn't even have to be reachable except: IP = 'unknown' finally...

PlanB

Thnx, I shouldn't write code past my bedtime then embarrass myself online with dumb questions.

PlanB

I've got a simple little python 2.7 program (running under Jessie) for moving a photo; photo_queue = listdir('/home/pi/photos') shutil.move('photo1.png', '/home/pi/photos/photo1.png') print str(photo_queue) To my great surprise the last line didn't produce any output! But if I move the print to a se...

PlanB

I've been trying to get a python program for handling the seek thermal camera to run. By trial & error with apt-get install or pip install I've manged to wrestle most of the dependencies (pyusb1.0, pil, numpy, scipy, imagemagick, opencv, cv2, etc) into place on a Pi3 with Jessie. It's been a long te...

PlanB

root@raspberrypi:/home/pi# cat /etc/os-release PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)" NAME="Raspbian GNU/Linux" VERSION_ID="8" VERSION="8 (jessie)" ID=raspbian ID_LIKE=debian HOME_URL="http://www.raspbian.org/" SUPPORT_URL="http://www.raspbian.org/RaspbianForums" BUG_REPORT_URL="http://www.rasp...

PlanB

Same result for both

PlanB

I've got a version of Jessie lite that responds to cat /etc/os-release with PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)" Trouble is it wouldn't let me apt-get install libopencv-dev or libusb-1.0-0-dev until I overhauled it with apt-get autoremove && sudo apt-get -f install && sudo apt-get update && s...

PlanB

On my Jessie lite it's not /etc/systemd/systemd.conf but /etc/systemd/system.conf Should the watchdog work if I use 'poweroff' from the cmd line?

Search found 102 matches

Re: edid problem

Re: edid problem

Re: edid problem

edid problem

Re: Pi won't reboot without pulling power

Re: Gparted recommended minimum sizes causes error

Re: I2C to Honeywell Pressure Sensor

Re: Pi3 Jessie lite reboot hang

Re: Pi3 Jessie lite reboot hang

Pi3 Jessie lite reboot hang

Re: Pigpio HX711.py will hang

Re: Pigpio HX711.py will hang

Re: Changing IP config without rebooting

Re: Pigpio HX711.py will hang

Re: Changing IP config without rebooting

Re: External ip address

Re: Turning on/off USB Power

External ip address

Re: shutil / listdir problem

shutil / listdir problem

pixelmath

Re: Identifying OS fully

Re: Identifying OS fully

Identifying OS fully

Re: Is this the correct way to install the watchdog package?