shutdown -h now ?smx wrote:Are there scripts out there that manually shutdown the Pi
Add a button to GPIO and a script reading it which triggers the listed command.smx wrote:even better custom hardware solutions?
Best wishes, Ivan Zilic.
Search found 1750 matches
- Tue Jun 24, 2014 5:50 pm
- Forum: Beginners
- Topic: Mobile Pi - Power Solution?
- Replies: 5
- Views: 1195
Re: Mobile Pi - Power Solution?
Hi,
Best wishes, Ivan Zilic.
Best wishes, Ivan Zilic.
- Tue Jun 24, 2014 5:46 pm
- Forum: General discussion
- Topic: Hiding Raspberry Pi inside a wall safely
- Replies: 6
- Views: 2620
Re: Hiding Raspberry Pi inside a wall safely
Hi, Are there power supplies designed to be hidden inside of walls This is such a specific requirement that I doubt you can get any listing this as its feature... A proper substitute is to obtain the power supply (from a decent shop !), which is designed to operate at zero air flow. Best wishes, Iva...
- Tue Jun 24, 2014 5:34 pm
- Forum: Graphics, sound and multimedia
- Topic: Digital Signal Processor
- Replies: 9
- Views: 2167
Re: Digital Signal Processor
Hi,
Best wishes, Ivan Zilic.
You could ask google to check what others similarly did so far...mukndv wrote:I actually have no idea ow to start.
Best wishes, Ivan Zilic.
- Tue Jun 24, 2014 5:30 pm
- Forum: Other projects
- Topic: Timing system with RPi
- Replies: 11
- Views: 3795
Re: Timing system with RPi
Hi Jaska, I would like to know which transmitters and receivers should I use because the range should be up to 2KMs. Longer range requires (also) more power... in each gate. Reconsider taking another approach, two of them could be better: a) you implement communication between gates (eg. when gate #...
- Tue Jun 24, 2014 5:05 pm
- Forum: General discussion
- Topic: Raspberry Pi draws 1.3A current and never lights up LEDs
- Replies: 9
- Views: 1402
Re: Raspberry Pi draws 1.3A current and never lights up LEDs
Hi, Could the fuse have blown? When the fuse blows, it disconnects the current path (= no current). Visually check if there is something unusual... Another thing - when 1.3A is burned somewhere, the temperature there increases... finger could be basic "debugging tool", too... Best wishes, Ivan Zilic.
- Tue Jun 24, 2014 2:51 am
- Forum: Automation, sensing and robotics
- Topic: raspberry pi compatible modem capable of SMS/3G
- Replies: 2
- Views: 2153
- Tue Jun 24, 2014 2:37 am
- Forum: General discussion
- Topic: Pi dev kit
- Replies: 3
- Views: 1070
Re: Pi dev kit
Hi,
Best wishes, Ivan Zilic.
I'd ask the seller...jfitchett56 wrote:But where are the example projects they speak of?
Best wishes, Ivan Zilic.
- Tue Jun 24, 2014 1:55 am
- Forum: Graphics, sound and multimedia
- Topic: Digital Signal Processor
- Replies: 9
- Views: 2167
Re: Digital Signal Processor
Hi,
Best wishes, Ivan Zilic.
I mean if/what boards do you have connected to the RasPi... what is your setup ?mukndv wrote:What do you mean.
Best wishes, Ivan Zilic.
- Tue Jun 24, 2014 1:44 am
- Forum: Graphics, sound and multimedia
- Topic: Digital Signal Processor
- Replies: 9
- Views: 2167
Re: Digital Signal Processor
Hi,
Best wishes, Ivan Zilic.
Which one ?mukndv wrote:I was wondering how to program a Digital Signal Processor (DSP).
Best wishes, Ivan Zilic.
- Tue Jun 24, 2014 12:55 am
- Forum: General discussion
- Topic: can a pi be a router by default?
- Replies: 5
- Views: 1001
Re: can a pi be a router by default?
Hi, Why 2 network cards? Router is by definition a device which routes network traffic between (at least) two networks. If it doesn't perform this, then this is not a router. To have a device connected to two networks at the same time , you (typically) need two network cards. How about 1 WiFi adapte...
- Mon Jun 23, 2014 11:49 pm
- Forum: General discussion
- Topic: can a pi be a router by default?
- Replies: 5
- Views: 1001
Re: can a pi be a router by default?
Hi, I think it cannot . Unless it has software and routing table. Please define "by default". Actually each functionality needs software. This software could be (part of) operating system, a daemon, an application... According to the routing table... I believe that each and every computer that has w...
- Mon Jun 23, 2014 11:18 pm
- Forum: Troubleshooting
- Topic: Phidgets RFID and PiCam incompatibilities?
- Replies: 6
- Views: 2259
Re: Phidgets RFID and PiCam incompatibilities?
Hi,
Best wishes, Ivan Zilic.
Even if the interference causes data to get corrupted, the software should detect this error and handle it in a system-friendly way.AndrewS wrote:the camera cable caused interference with GPS so he had to shield it. I wonder if it's causing similar problems with RFID?
Best wishes, Ivan Zilic.
- Mon Jun 23, 2014 10:19 pm
- Forum: Beginners
- Topic: Using windows software
- Replies: 28
- Views: 5160
Re: Using windows software
Hi, I did not. Didn't know that was an option. But you're right, i will try contacting them. I see the following possibilities: a) Omron sends you Linux app code... good, case almost closed. :-) b) Omron doesn't support Linux, but is willing to give you the product's USB protocol specification... go...
- Mon Jun 23, 2014 6:52 pm
- Forum: Other projects
- Topic: Fuel flow sensor and open collector signals
- Replies: 70
- Views: 9989
Re: Fuel flow sensor and open collector signals
Hi, So only the 12V DC to the sensor + and the ground of the sensor with the grnd pin of the RPi? Maybe that's better?! If you'd like the current to flow from the 12V DC supply to the sensor (to supply it), you need a return path also here. So, you must connect together also the second (negative) ou...
- Mon Jun 23, 2014 6:36 pm
- Forum: Other projects
- Topic: Fuel flow sensor and open collector signals
- Replies: 70
- Views: 9989
Re: Fuel flow sensor and open collector signals
Hi, Just in case - you have grounds of the sensor and RasPi connected together, don't you ? Not yet, is that really bad? English language has similar words for circuit, circle and circulation. The last two words directly associate to a closed loop, and/or that something is rolling around. An electri...
- Mon Jun 23, 2014 5:02 pm
- Forum: Other projects
- Topic: Fuel flow sensor and open collector signals
- Replies: 70
- Views: 9989
Re: Fuel flow sensor and open collector signals
Hi, Tomorrow I'll try a low pull-up resistor, 3k3 or 4k7 ohm to connect pin 1 (3.3V) and the gpio pin (22). It seems logic that a current is required to generate a pulse on the Raspberry Pi. Just in case - you have grounds of the sensor and RasPi connected together, don't you ? Best wishes, Ivan Zil...
- Mon Jun 23, 2014 1:51 pm
- Forum: Beginners
- Topic: cannot install Apache ... why ?
- Replies: 6
- Views: 2026
Re: cannot install Apache ... why ?
Hi,
Best wishes, Ivan Zilic.
I don't know... check log files for errors.rapidograf wrote:i did command "sudo service apache2 restart" twice , and 4 times for experimental but , Raspi return same error - apache2 : urecognized service
Best wishes, Ivan Zilic.
- Mon Jun 23, 2014 1:32 pm
- Forum: Other projects
- Topic: Fuel flow sensor and open collector signals
- Replies: 70
- Views: 9989
Re: Fuel flow sensor and open collector signals
Hi, Oke... I've a resistor of 10Kohms, But how should I connect this resistor. So this 10K resistor connected port 1 (3.3 V) and the signal wire and then the whole thing on a GPIO port (let's say 22). Leave existing connections as they are. Connect this resistor between GPIO 3.3V pin (GPIO connector...
- Mon Jun 23, 2014 1:14 pm
- Forum: Beginners
- Topic: cannot install Apache ... why ?
- Replies: 6
- Views: 2026
Re: cannot install Apache ... why ?
Hi, 2) do "sudo service apache2 restart" after that Raspi return string "apache2: unrecognized service" Restart tries to do stop & start. Since the daemon is not running yet at this time (when you run the command for the first time), it cannot be stopped. ;-) Execute the "sudo service apache2 restar...
- Mon Jun 23, 2014 1:06 pm
- Forum: Automation, sensing and robotics
- Topic: DS18b20 voltage question
- Replies: 2
- Views: 1434
Re: DS18b20 voltage question
Hi Leo, As I am going to be using between 7 and 10 probes ( about a 10 meter run, evenly spaced ) should I be use 3.3 or 5 volts. Any comments or advice? Since you have several probes, try to avoid parasite power mode (this depends also on conversion frequency, etc). You can use 5V supply voltage, w...
- Mon Jun 23, 2014 12:45 pm
- Forum: Other projects
- Topic: Fuel flow sensor and open collector signals
- Replies: 70
- Views: 9989
Re: Fuel flow sensor and open collector signals
Hi, The power supply of the sensor should be in the range of 8 - 28V DC. I've constructed a 12V DC supply with 2A output. Make sure that filtering is sufficient (although I don't think this is the issue here). The wires from the DC source are connected to the wires of the sensor and the signal wire ...
- Mon Jun 23, 2014 11:59 am
- Forum: Other projects
- Topic: Fuel flow sensor and open collector signals
- Replies: 70
- Views: 9989
Re: Fuel flow sensor and open collector signals
Hi, The pulses or ticks doesn't make sense, since the 0-1 or 1-0 pulse switches also appear when I'm not blowing in the sensor.... It could be that your hardware setup doesn't generate proper voltage levels. What is the exact circuit around the open-collector output you're using now ? Best wishes, I...
- Mon Jun 23, 2014 11:52 am
- Forum: General discussion
- Topic: 3G USB Dongle on 3.3v
- Replies: 3
- Views: 1631
Re: 3G USB Dongle on 3.3v
Hi Tim, I would be very interested in knowing if anyone have had success with any particular 3G USB Dongle in a setup like this? I have strong doubts that you can find any 3G USB dongle working with 3.3V. This voltage is much below USB specification (read as: in best case you'd implement potentially...
- Mon Jun 23, 2014 2:03 am
- Forum: Troubleshooting
- Topic: Possibly Fried Raspberry Pi
- Replies: 5
- Views: 960
Re: Possibly Fried Raspberry Pi
Hi, As far as preventing this from occurring again what would you suggest. Buy units/modules at decent shops. When there is nominal 5V power supply, use 5V. If you have doubts about voltage regulator, obtain another one. Furthermore, how would I check if the rip is dead Remove all peripherals (inclu...
- Sun Jun 22, 2014 11:42 pm
- Forum: Bare metal, Assembly language
- Topic: Coding in HEX
- Replies: 41
- Views: 11485
Re: Coding in HEX
Hi, That's why I hate also C, and because of C exist hackers. Hacker != Cracker. If I have somebody to help me I can build a server imposible to brake. As they say... the only server impossible to break is the one disconnected/powered off and locked in a dark room. I need only one month to read book...