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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Odroid’ Category

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Remote power control your IoT hardware and remote updating boot SD cards

Posted by jpluimers on 2020/07/16

Thomas Rini (of U-Boot and Yocto fame) mentioned these solutions for remote power control of IoT devices and remote updating SD cards in this slide State of the U-Boot – Thomas Rini, Konsulko Group:

Two power solutions I like myself are:

The combination of these allows for really flexible production and testing environments.

Slides at [WayBack] ELC2017 – State of the U-Boot.pdf

–jeroen

Read the rest of this entry »

Posted in Arduino, Development, ESP8266, ESP8266X, Hardware Development, Hardware Interfacing, IoT Internet of Things, Network-and-equipment, Odroid, Power User, Raspberry Pi | Leave a Comment »

18650 Battery shield V3(RaspberryPi&Arduino) from lspoplove on Tindie

Posted by jpluimers on 2020/03/04

As you know Tesla has thousands of 18650 batteries. The 18650 battery is a strong existence. So we made this 18650 battery shield for maker.

Features:

  • Battery protection(Over charge or Over discharge)
  • Micro USB port Input
  • Type-A USB Output
  • 0.5A current charging
  • 1 switch control USB output
  • 5~8V Input Voltage
  • 3V & 1A Output
  • 5V & 2A Output
  • LED indicate(Green means full,Red means charging)
  • 3V output port x3
  • 5V output port x3

Charging can only be done at 0.5A, so using it as a sort of UPS seems not possible, but an interesting device nonetheless.

The other products referenced from the same page are interesting too and will undoubtedly bring me some new ideas for some projects.

Source: [WayBack] 18650 Battery shield V3(RaspberryPi&Arduino) from lspoplove on Tindie

Via:

–jeroen

 

Posted in 18650, Arduino, Batteries, Development, ESP8266, Hardware Development, Li-Ion, Odroid, Power User, Raspberry Pi | Leave a Comment »

MotionEyeOS on Odroid C1+ with Logitech USB web cameras

Posted by jpluimers on 2018/10/11

Hopefully I get this to work after fixing

The first part of the fix was to

  1. re-image the SD card.
  2. boot
  3. wait 5 minutes (there is no output on HDMI apart from some flickering and no output on TTY using 115200 bits/second despite trying [WayBack] en:c1_hardware_uart [ODROID Wiki])

The second part is getting the USB web cameras to work.

I’ve got two types, but the label on them doesn’t list their common name, only their P/N sometimes with M/N:

  1. P/N 860-000049 M/N V-UBC40 (really old USB cameras)
  2. P/N 860-000334 (new USB camera)

The MotionEyeOS web interface didn’t list any working cameras so I had to do some digging.

Luckily [WayBack] Webcam software and driver support for Windows has a table of part and model numbers combined with product names, so they got revealed them as these:

  1. P/N 860-000334 = M/N V-U0028  with name HD Pro Webcam C920
  2. P/N 861225 = M/N V-UBC40 with name Quick Cam Messenger
    (which is funny as the P/N on the label is different)

Both are supported by motion according to [WayBack] Logitech < Motion < Foswiki though the Quick Cam Messenger needs [WayBack] Quickcam Messenger & Communicate driver for Linux which I should try to cross-compile one day.

The latter works fine. Below are some settings I used.

Read the rest of this entry »

Posted in *nix, Development, Hardware Development, Linux, Odroid, Power User | Leave a Comment »

Giving up on the official Ubuntu for Odroid C1 image

Posted by jpluimers on 2018/10/09

After the trouble in Ubuntu: Fixing the myserious “Failed to stop apt-daily.timer: Connection timed out” I got into more trouble:
apt-get update && apt-get upgrade hung the device.

It booted fine, but a new update showed it was in a hosed state.

I don’t expect vendor supported distributions to fail this way, so I gave up on the ubuntu-16.04-minimal-odroid-c1-20160817.img.xz .

–jeroen


root@odroidC1:~# apt-get update && apt-get upgrade
Hit:1 http://ports.ubuntu.com/ubuntu-ports xenial InRelease
Hit:2 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease
Hit:3 http://ports.ubuntu.com/ubuntu-ports xenial-backports InRelease
Hit:4 http://ports.ubuntu.com/ubuntu-ports xenial-security InRelease
Hit:5 http://deb.odroid.in/c1 xenial InRelease
Reading package lists… Done
E: dpkg was interrupted, you must manually run 'dpkg –configure -a' to correct the problem.
root@odroidC1:~# dpkg –configure -a
Processing triggers for ureadahead (0.100.0-19) …
Setting up initramfs-tools (0.122ubuntu8.8) …
update-initramfs: deferring update (trigger activated)
Processing triggers for systemd (229-4ubuntu17) …
Processing triggers for initramfs-tools (0.122ubuntu8.8) …
update-initramfs: Generating /boot/initrd.img-4.4.0-28-generic
WARNING: missing /lib/modules/4.4.0-28-generic
Ensure all necessary drivers are built into the linux image!
depmod: ERROR: could not open directory /lib/modules/4.4.0-28-generic: No such file or directory
depmod: FATAL: could not search modules: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_FQEGW2/lib/modules/4.4.0-28-generic/modules.order: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_FQEGW2/lib/modules/4.4.0-28-generic/modules.builtin: No such file or directory
root@odroidC1:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 396M 0 396M 0% /dev
tmpfs 81M 3.3M 78M 5% /run
/dev/mmcblk0p2 59G 1.1G 55G 2% /
tmpfs 403M 0 403M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 403M 0 403M 0% /sys/fs/cgroup
/dev/mmcblk0p1 128M 11M 118M 9% /media/boot

view raw

giving-up-on-ubuntu-image-for-odroid-c1.txt

hosted with ❤ by GitHub

Posted in Development, Hardware Development, Odroid | 3 Comments »

Ubuntu: Fixing the myserious “Failed to stop apt-daily.timer: Connection timed out”

Posted by jpluimers on 2018/05/14

Ubuntu is the only Linux system I had that – after installing a text-mode console setup – gets itself in the below state with only running apt update and apt-get upgrade.

Preparing to unpack .../archives/apt_1.2.19_armhf.deb ...
Failed to stop apt-daily.timer: Connection timed out
See system logs and 'systemctl status apt-daily.timer' for details.
Failed to get load state of apt-daily.timer: Connection timed out
dpkg: warning: subprocess old pre-removal script returned error exit status 1

I could not find meaningful search results for the above thing, nor did systemctl status apt-daily.timer return anything better than

Failed to get properties: Failed to activate service 'org.freedesktop.systemd1': timed out

Heck, it doesn’t even reboot any more (no helpful search results either):

# reboot
Failed to start reboot.target: Failed to activate service 'org.freedesktop.systemd1': timed out
See system logs and 'systemctl status reboot.target' for details.
Failed to open /dev/initctl: No such device or address
Failed to talk to init daemon.

Nor did systemctl status reboot.target return anything better than

Failed to get properties: Failed to activate service 'org.freedesktop.systemd1': timed out

From the ubuntu-16.04-minimal-odroid-c1-20160817.img.xz base system, it only had these extra packages installed:

  • etckeeper
  • tmux
  • speedtest-cli
  • sendemail

Workaround found, but still unsure why this happened in the first place

Despite the workaround below, I still don’t know why I got into this situation and this leaves me with a very uncomfortable feeling.

Too bad some systems (like ODroid) only have Ubuntu based distributions as sorting out stuff like above took me way too much effort.

Read the rest of this entry »

Posted in *nix, Development, etckeeper, Hardware Development, Internet, Linux, Odroid, Power User, SpeedTest, Ubuntu | 2 Comments »

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