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by Lomax
Thu Aug 17, 2017 6:45 pm
Forum: General discussion
Topic: Houseboat home automation / surveillance system
Replies: 53
Views: 9057

Re: Anyone here with experience of the Monarco Hat?

Never mind, I've just ordered a Monarco Hat, so I can figure these things out for myself.
by Lomax
Thu Aug 17, 2017 2:01 pm
Forum: General discussion
Topic: Any point with S.M.A.R.T. capable MicroSD cards?
Replies: 10
Views: 2420

Re: Any point with S.M.A.R.T. capable MicroSD cards?

Is it possible to run the Pi read-only, and let it post log to some where else, say, to an email box? And there are SLC based SD cards. More erase cycle, more zero on price tag. Yep, making /root read only is definitely on my to-do list, but I can't log to the cloud - hence my thinking of having a ...
by Lomax
Thu Aug 17, 2017 1:08 pm
Forum: General discussion
Topic: Any point with S.M.A.R.T. capable MicroSD cards?
Replies: 10
Views: 2420

Re: Any point with S.M.A.R.T. capable MicroSD cards?

For a bit more context: I only started looking at this when I realised it would be really handy to run a syslog server on the remote Pi, mainly to log router events and call logs from the attached SIP telephone. The increased writes being a concern wrt flash reliability. My fist thought was to get s...
by Lomax
Thu Aug 17, 2017 12:59 pm
Forum: General discussion
Topic: Any point with S.M.A.R.T. capable MicroSD cards?
Replies: 10
Views: 2420

Re: Any point with S.M.A.R.T. capable MicroSD cards?

Can't see any point running it on SDCards (which are a dime a dozen to replace). It's got nothing to do with the cost, but the inconvenience of a (remote) system going down unexpectedly. If the extra £5 for S.M.A.R.T. support means I'd get advanced notification of an impending failure then I would ...
by Lomax
Thu Aug 17, 2017 12:27 pm
Forum: General discussion
Topic: Houseboat home automation / surveillance system
Replies: 53
Views: 9057

Re: Anyone here with experience of the Monarco Hat?

*bump* Surely many Raspberrians must have dealt with interfacing a Pi to an (electrically) noisy, >5V environment? In cars, for example? Even simple automation would be best done with some kind of buffering/ESD protection on the GPIO pins. Or is it just that everyone uses wireless tech for this, so ...
by Lomax
Thu Aug 17, 2017 12:23 pm
Forum: General discussion
Topic: Any point with S.M.A.R.T. capable MicroSD cards?
Replies: 10
Views: 2420

Re: Any point with S.M.A.R.T. capable MicroSD cards?

SkyRise wrote:
Thu Aug 17, 2017 9:29 am
Looks like there is a package in Debian (smartmontools) containing 'smartctl' which reads this data, but not sure what benefit you'll get...

Good to know about the package, but yeah, is there any real benefit? I mean I just don't know; that's why I asked.
by Lomax
Thu Aug 17, 2017 9:28 am
Forum: General discussion
Topic: Any point with S.M.A.R.T. capable MicroSD cards?
Replies: 10
Views: 2420

Re: Any point with S.M.A.R.T. capable MicroSD cards?

Possibly as it could inform of bad blocks and wear level, but the most important question is is there Linux Software availableto read the SMART? Indeed, I'm of course wondering speficially WRT to the Pi and Raspbian. I've had a few cards go bad over the years and it's always a pain. Currently worki...
by Lomax
Thu Aug 17, 2017 9:15 am
Forum: General discussion
Topic: Any point with S.M.A.R.T. capable MicroSD cards?
Replies: 10
Views: 2420

Any point with S.M.A.R.T. capable MicroSD cards?

I see that the Transcend TS16GUSDC10I includes S.M.A.R.T. support - never seen that on a MicroSD card before. Any point to it?
by Lomax
Tue Aug 15, 2017 12:29 pm
Forum: General discussion
Topic: Houseboat home automation / surveillance system
Replies: 53
Views: 9057

Houseboat home automation / surveillance system

Note: Subject changed from "Anyone here with experience of the Monarco Hat?" I'm very interested in getting a Monarco Hat for a project I'm working on - it ticks off so many of my requirements with a single add-on that it's almost too good to be true. I need 12V power input 1-Wire interface RS-485 ...
by Lomax
Mon Aug 14, 2017 1:50 pm
Forum: General discussion
Topic: IVPort Dual camera multiplexer
Replies: 18
Views: 5030

Re: IVPort Dual camera multiplexer

I'm only guessing here but I wonder if the OP's need for battery is for handheld operation, maybe some sort of 360° camcorder or something. SLA is still a reliable workhorse for many applications but a seriously heavy brute for anything you might want to carry around. Yeah, apologies - I guess I've...
by Lomax
Mon Aug 14, 2017 11:27 am
Forum: General discussion
Topic: IVPort Dual camera multiplexer
Replies: 18
Views: 5030

Re: IVPort Dual camera multiplexer

Just options. Not saing any are better. Fair enough - always interesting to hear other suggestions! FWIW, I have a Pi2 B (my favourite model) running Domoticz, Node-Red, NUT, gpsd and a few other things, with a Sierra Wireless WWAN router , one CSI camera, a 1-Wire interface connected to a few weat...
by Lomax
Sun Aug 13, 2017 9:29 pm
Forum: General discussion
Topic: IVPort Dual camera multiplexer
Replies: 18
Views: 5030

Re: IVPort Dual camera multiplexer

PiGraham wrote:
Sun Aug 13, 2017 8:53 pm
... USB camera with compression hardware built in ...
... Compute modules. Each can directly interface to two PI CSI cameras ...
... One PiZero per camera might be viable ...
All good ideas, but I cannot see why any of them are better than the IVPort/Arducam option?
by Lomax
Sat Aug 12, 2017 11:33 am
Forum: Automation, sensing and robotics
Topic: Remote security/monitoring system - use GPIO to detect crashed Pi?
Replies: 6
Views: 1382

Re: Remote security/monitoring system - use GPIO to detect crashed Pi?

Thanks, that's a nice simple circuit, for which I already have the parts. However, having thought about it for a while, I'm going to wire the GPIO of the WWAN router to the "Run" pin on the Pi instead (as an active low), so I can reset it remotely in case of hangs. Shame I've only got one GPIO to wo...
by Lomax
Sat Aug 12, 2017 12:36 am
Forum: General discussion
Topic: IVPort Dual camera multiplexer
Replies: 18
Views: 5030

Re: IVPort Dual camera multiplexer

Cost is not an issue, power consumption is. Besides, I want more than two cameras. Four at least.
by Lomax
Fri Aug 11, 2017 10:39 pm
Forum: General discussion
Topic: IVPort Dual camera multiplexer
Replies: 18
Views: 5030

Re: IVPort Dual camera multiplexer

Thanks guys - I do understand there are restrictions on switching speed and framerate, but what other options are there if you want to connect up more than one camera to a (battery powered) Pi? USB seems like a worse option (framerate, CPU load, power usage)? Also, side note: I have since found out ...
by Lomax
Thu Aug 10, 2017 9:04 am
Forum: General discussion
Topic: IVPort Dual camera multiplexer
Replies: 18
Views: 5030

Re: IVPort Dual camera multiplexer

But could it be used in a surveillance camera setup, where you switch periodically between a few cameras (only capturing video from one at a time)?
by Lomax
Mon Aug 07, 2017 5:39 pm
Forum: Automation, sensing and robotics
Topic: Remote security/monitoring system - use GPIO to detect crashed Pi?
Replies: 6
Views: 1382

Re: Remote security/monitoring system - use GPIO to detect crashed Pi?

The problem is with any crash or even a card failure is a gpio pin could be left in its existing state. What you need is an external watch dog circuit at gets trigged by a gpio pin. I posted such a circuit in this post you want the second of my posted circuits dated 04 Jun 2017, 10:58 Many thanks, ...
by Lomax
Sun Aug 06, 2017 10:39 pm
Forum: HATs and other add-ons
Topic: gpsd failing on boot, but starts manually
Replies: 14
Views: 28892

Re: gpsd failing on boot, but starts manually

I was battling with this recently, and someone pointed me to the startup troubleshooting section on the official GPSD website (http://catb.org/gpsd/troubleshooting.html#startuptroubleshooting). I had already tried most of the methods mentioned in this thread with no luck, but the solution suggested ...
by Lomax
Sat Aug 05, 2017 5:56 pm
Forum: Automation, sensing and robotics
Topic: Remote security/monitoring system - use GPIO to detect crashed Pi?
Replies: 6
Views: 1382

Re: Remote security/monitoring system - use GPIO to detect crashed Pi?

What if there's an SD card failure? This has happened to me, twice.
by Lomax
Sat Aug 05, 2017 5:03 pm
Forum: Automation, sensing and robotics
Topic: Remote security/monitoring system - use GPIO to detect crashed Pi?
Replies: 6
Views: 1382

Remote security/monitoring system - use GPIO to detect crashed Pi?

I've been working on a remote security/monitoring system for my boat - based on the Pi of course :) I've got a nice 3G/4G modem/router for this, which has a single I/O pin. It just struck me that it would be nice to be able to use this to detect whether the Pi is running as it should, so that the ro...
by Lomax
Tue Feb 14, 2017 6:51 pm
Forum: Raspbian
Topic: libav-tools depends on X11!?
Replies: 2
Views: 1250

Re: libav-tools depends on X11!?

*bump*
by Lomax
Tue Feb 14, 2017 12:32 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: CSI FPC DIP15 to round cable
Replies: 3
Views: 1823

Re: CSI FPC DIP15 to round cable

I found some cheap 1mm pitch FFC 15-pin connectors on eBay, so will give the PCB route a go.
by Lomax
Tue Feb 14, 2017 6:16 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: CSI FPC DIP15 to round cable
Replies: 3
Views: 1823

Re: CSI FPC DIP15 to round cable

You are right in that you only need 12 conductors. You could get away with not connecting CAM_CLK , as it is used to control the red LED on the v1.3 camera module, but the other 11 are necessary. Therefore, I would just do all 12. Indeed, all the GND wires are electrically connected. Thanks, that's...
by Lomax
Sun Feb 12, 2017 5:12 am
Forum: Camera board
Topic: Camera tilt solenoid
Replies: 20
Views: 4116

Re: Camera tilt solenoid

Couple of renders of how the housing will look. Final dimensions are 46mm W x 55mm D X 54mm H. The mechanism should allow for 0 to 60 degrees of tilt. Housing made from laser cut 3mm white acrylic, window from cast 1mm clear acrylic. Anyone know of a good (and cheap) laser cutting facility in the UK?
by Lomax
Sat Feb 11, 2017 7:53 pm
Forum: Camera board
Topic: Camera tilt solenoid
Replies: 20
Views: 4116

Re: Camera tilt solenoid

What type of cable are you planning to use between the computer and the camera? At the moment I'm using the HDMI adapters from Petit Studios , which work very well indeed with a 2M cheapo HDMI cable I had lying around. I've seen reports that even a 5M cable works without issues, which is more than ...

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