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Raspberry pi hardware watchdog

We run outdoor-devices based on raspberry pi platforms. Those devices are remotely controlled via a web-application that generates the control-commands and sends them via openvpn to the respective Raspberry Pi device.

Due to poor infrastructure, some of the devices must work under 3G/umts conditions. In this case a mobile USB-Surfstick (3G/UMTS) provides the Internet connection.

Unfortunately this solution does not work sufficiently enough for our purposes. For unknown reason the device looses connection and does not come up again - even not with a software reboot. In such cases we must travel to the devices location and plug-off plug-on the power cable to re-initiate the internet connection. This is too nasty and costly.

The scope of this project is to develop an appropriate software running on the ArchLinux RaspberryPi which initiates a reset by interrupting the units power as soon the internet-connection is lost for a given period of time.

We have foreseen to use Yocto-Watchdog's as hardware unit (please see [url removed, login to view] for details.

Kỹ năng: Linux, Python

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Về Bên Thuê:
( 5 nhận xét ) Salzburg, Austria

Mã Dự Án: #7090933

12 freelancer đang chào giá trung bình $198 cho công việc này

chirgeo

Hi. That's an interesting project, I also purchased myself this little magic device and playing with it. So, basically we need a simple script which will watch the internet connectivity for x seconds(configurable). Thêm

$222 USD trong 1 ngày
(34 Đánh Giá)
6.2
odessky

Hi! You don't need any watchdog hardware for your RPBI! I can write suicide script - if device lost connect more than XXX time - it will reboot yourself. Please keep your money and

$50 USD trong 1 ngày
(50 Đánh Giá)
5.5
kteja85

A proposal has not yet been provided

$222 USD trong 3 ngày
(9 Đánh Giá)
3.7
Purplecoder

A proposal has not yet been provided

$155 USD trong 3 ngày
(10 Đánh Giá)
3.6
jerry40

Hi. How do you check if software reboot does not help? Why I'm asking - you can try to use watchdog daemon (see this link for details [url removed, login to view] Thêm

$111 USD trong 3 ngày
(2 Đánh Giá)
3.4
LuisFelipe

Hi sir, I have strong skills with Linux-based embedded systems and have worked with watchdog applications (also in kernel space). Here my proposal: - Development of a tiny C-application that pings the HW-watchdog Thêm

$255 USD trong 3 ngày
(2 Đánh Giá)
3.4
vavy

Hello! I think your goal may be reached by simpler method. Just using two GPIO port of Rpi for controlling power lines of USB port to modem. (via relays or optokeys).... It will be cheaper in hardware, and simpler Thêm

$144 USD trong 7 ngày
(8 Đánh Giá)
3.1
yogirajbanerji

Hello Recruiter, I might be able save you the cost of purchasing another hardware watchdog, if you can let me know the details of the raspberry pi that you are using. I would like to discuss the possibility of not pu Thêm

$216 USD trong 3 ngày
(0 Đánh Giá)
0.0
eduardobaret

Why don't you just use a relay connected to the Raspberry pi instead? Or a relay connected to a delay-turn-on? [url removed, login to view] Thêm

$277 USD trong 3 ngày
(0 Đánh Giá)
2.5
benkelaci88

Hi, I am Laszlo Benke, from Hungary. I am an electrical engineer. I work as a C# and PLC developer. I am dealing with home-automation and RFID systems. I know the raspberry PI platform well. I made a home-automa Thêm

$333 USD trong 3 ngày
(0 Đánh Giá)
0.0
kacsa777

Hi! I am an electrical engineer/developer from Hungary with 4+ years experience. I have completed successfully several similar projects on Raspberry Pi. However I would rather use C/C++ for this task (because of speed Thêm

$166 USD trong 5 ngày
(0 Đánh Giá)
0.0
gsridhar

I had read in detail your requirement for the Raspberry Pi located in remote locations linked by a GSM modem. The requirement is to renable the GSM modem when it gets disconnected from the local cell tower. Since yo Thêm

$230 USD trong 7 ngày
(0 Đánh Giá)
0.0