Ok, you don't believe me much... let's start with the question: why do you want to upload image to the database ? I'd really like to know this...chathura25 wrote:i need to put this image on to that database.
Best wishes, Ivan Zilic.
Search found 1750 matches
- Fri Jun 27, 2014 8:20 pm
- Forum: General discussion
- Topic: Upload an Images to database
- Replies: 12
- Views: 4700
Re: Upload an Images to database
Hi,
Best wishes, Ivan Zilic.
Best wishes, Ivan Zilic.
- Fri Jun 27, 2014 7:45 pm
- Forum: General discussion
- Topic: Upload an Images to database
- Replies: 12
- Views: 4700
Re: Upload an Images to database
Hi,
Best wishes, Ivan Zilic.
You need to have very strong reason for uploading image to a database. I have doubts, that you have one...chathura25 wrote:i want to upload an image to a database.
Google for "blob".chathura25 wrote:How can i do it?
Yes, indirectly (with additional coding on server side).chathura25 wrote:can i do it via FTP?
Best wishes, Ivan Zilic.
- Fri Jun 27, 2014 12:51 pm
- Forum: Troubleshooting
- Topic: PIR Sensor + GSM Module
- Replies: 9
- Views: 4051
Re: PIR Sensor + GSM Module
Hi,
Check behavior also when power supply output cable length is decreased as much as you can.
Best wishes, Ivan Zilic.
Ok, good.skizzetto wrote:My power supply come from a good manufacturer (not low level china)
Check behavior also when power supply output cable length is decreased as much as you can.
Best wishes, Ivan Zilic.
- Fri Jun 27, 2014 12:43 pm
- Forum: Beginners
- Topic: What can I use for a power supply?
- Replies: 34
- Views: 276060
Re: What can I use for a power supply?
Hi, Is it harmful to connect the Pi to 3A power supply? Explanation which you'll remember for the rest of life: - current (power) capability of a power supply equals to capacity of a truck, - RasPi is cargo load (word "load" is actually used for supplied components/modules). When your power supply c...
- Fri Jun 27, 2014 12:24 pm
- Forum: General discussion
- Topic: 3G USB Dongle on 3.3v
- Replies: 3
- Views: 1631
Re: 3G USB Dongle on 3.3v
Hi Tim, Would it, on a model A be possible then to power the raspberry by suplying 3.3v to the GPIO and 5v to the 3G dongle through a USB Y cable like this: Most likely, you should cut one wire (red) next to the connector plugged-in the RasPi. To give you precise answer you'd need to provide data ho...
- Thu Jun 26, 2014 11:13 pm
- Forum: Troubleshooting
- Topic: PIR Sensor + GSM Module
- Replies: 9
- Views: 4051
Re: PIR Sensor + GSM Module
Hi, How can i improve power filtering? Upf,... this is actually a set of various actions and sometimes also minor steps which produce overall result. The simple thing which you can quickly and easily do (and is very efficient) is to take another power supply for supplying just the GSM module. (Do no...
- Thu Jun 26, 2014 2:20 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, Given that we are talking about 12 volts. What is wrong with a standard voltage divider? You mean to have two pull-up resistors towards 12V, like this one: 12V o | R1 | o-----------------------> RasPi input | R2 | Sensor output o GND o---------------------------------o RasPi GND This circuit is ...
- Thu Jun 26, 2014 1:01 pm
- Forum: Troubleshooting
- Topic: PIR Sensor + GSM Module
- Replies: 9
- Views: 4051
Re: PIR Sensor + GSM Module
Hi, Is it possible that the electromagnetic waves generated by the GSM module interfering with PIR sensor Yes, definitely this can "disturb" the sensor. Another option is that GSM module creates some noise on the power rail (its consumption is significantly increased at mentioned events) and this no...
- Thu Jun 26, 2014 12:46 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, There's now a pull-up resistor between the 3.3V of the RPi and the signal wire and between the 12V DC and signal You have two pull-up resistors ??? Diode's and the first resistor prevent a 12V DC to the GPIO. It doesn't sound good when protection elements are "active" all the time. This is rathe...
- Thu Jun 26, 2014 4:02 am
- Forum: Networking and servers
- Topic: How to store data from my Raspberry Pi to phpMyAdmin?
- Replies: 4
- Views: 2183
Re: How to store data from my Raspberry Pi to phpMyAdmin?
Hi, Now I want to know how can I set my blinking led with WRITE method to store to phpMyAdmin database and display it. Can you please ask the same questions with other words... The sentence above doesn't have much sense... (Furthermore, phpMyAdmin is not a database. It's is just a tool to admin the ...
- Thu Jun 26, 2014 1:07 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,
It would be interesting to see remaining text/description/code related to this schematics. Maybe there is somewhere underlined to enable related pull-up or to add external one...
Best wishes, Ivan Zilic.
I understood also previous content.ame wrote:Sorry, let me rephrase that.
It would be interesting to see remaining text/description/code related to this schematics. Maybe there is somewhere underlined to enable related pull-up or to add external one...
Best wishes, Ivan Zilic.
- Thu Jun 26, 2014 12:49 am
- Forum: Networking and servers
- Topic: Raspberry pi wireless bridge
- Replies: 3
- Views: 1616
Re: Raspberry pi wireless bridge
Hi, what I want to accomplish is to rout the pi's wifi through the Ethernet so I can connect to the internet with a computer that is limited to wired connections. So, this your goal: PC -------Ethernet------- RasPi -------WiFi------- AP ------- (Internet) You're solution kinda left me puzzled as I a...
- Thu Jun 26, 2014 12:16 am
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: Making Custom Cables for GPIO
- Replies: 3
- Views: 2474
Re: Making Curtom Cables for GPIO
Hi, I have been looking online for a long time to try and find how to make custom length GPIO cables. You need: http://uk.farnell.com/fci/71600-126lf/socket-idc-w-o-s-relief-26way/dp/1103931 http://www.ebay.com/itm/1PCS-FD-IDE-IDC-IDS-Ribbon-Cable-Crimping-Crimp-Hand-Tool-/320953398499?pt=LH_Default...
- Wed Jun 25, 2014 11:58 pm
- Forum: Beginners
- Topic: referencing hardware outputs
- Replies: 24
- Views: 2745
Re: referencing hardware outputs
Hi, Essentially the naming is arbitrary then? For the parts you implement you're free to use naming you like... for using already implemented bits use names they picked. I would just use the name and assign it to the hardware somehow? This your "assign" task is actually reading from/writing to hardw...
- Wed Jun 25, 2014 11:43 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, I have problems understanding how this circuit could work properly with open-collector output... Perhaps they are assuming the built-in pullup is turned on. Well, yes, we could speculate and this is a valid theory... My arguments against are that: - assuming that pull-up is turned on is brave as...
- Wed Jun 25, 2014 10:51 pm
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: Help with LCD on GPIO
- Replies: 3
- Views: 1806
Re: Help with LCD on GPIO
Hi, i followed this guide : ...uk/2012/07/ 16x2 -lcd-module-co... my LCD is a COG (Chip on Glass?) type LCD by TinSharp with the model number TG12864H-17. Your display doesn't seem to be 16x2... the problems are that there are a few extra pins like CS and RES No, no, the problem is that you're not a...
- Wed Jun 25, 2014 10:33 pm
- Forum: Beginners
- Topic: I want to read the booting text
- Replies: 3
- Views: 709
Re: I want to read the booting text
Hi,
Read the information post-mortem from file /var/log/dmesg.
Best wishes, Ivan Zilic.
You can't.CharlyDelta wrote:When booting, how can I stop and start the scrolling text to read it easily ?
Read the information post-mortem from file /var/log/dmesg.
Best wishes, Ivan Zilic.
- Wed Jun 25, 2014 8:37 pm
- Forum: Other projects
- Topic: Timing system with RPi
- Replies: 11
- Views: 3795
Re: Timing system with RPi
Hi, a) you implement communication between gates how can I make it work when skier fails to hit a gate and a gate will not send timestamp and ID to next split time? If the skier fails to hit gate #7, you'll not have a timestamp from this gate. To enable the same gate #7 to forward data from previous...
- Wed Jun 25, 2014 6:51 pm
- Forum: Beginners
- Topic: referencing hardware outputs
- Replies: 24
- Views: 2745
Re: referencing hardware outputs
Hi, how would i go about calling the outputs from my hardware? Use short descriptive names. (1st priority is to be descriptive, 2nd is to make it short). I'd use few characters describing sensor type (position, orientation, acceleration...) and a name itself, like: PosLat, PosLong, AccX, MagY, RollZ...
- Wed Jun 25, 2014 5:30 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 connection scheme from AIC systems AG I have problems understanding how this circuit could work properly with open-collector output... You can't harm RasPi with it,... so, you can try it... but don't put all your money on it (or, else, to the information that the sensor has OC output). Best ...
- Wed Jun 25, 2014 4:49 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,
Best wishes, Ivan Zilic.
Ok, sorry. By default, I expect that a content is related to the topic.rgrbic wrote:Check the posts, nobody said that schmitt trigger can solve the problem.
Best wishes, Ivan Zilic.
- Wed Jun 25, 2014 3:46 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, Given that the sensor employs a Schmitt trigger on the output It depends on application and setup, but you can use it. Schmitt trigger is always an input feature. By adding a Schmitt trigger you cannot increase number of ticks. In ideal case, the number of ticks is equal (= low noise on signal l...
- Wed Jun 25, 2014 3:28 pm
- Forum: Networking and servers
- Topic: Raspberry pi wireless bridge
- Replies: 3
- Views: 1616
Re: Raspberry pi wireless bridge
Hi, what is the easiest or simplest way to bridge the wifi to the Ethernet on the pi? This kind of answers always depend of the knowledge/skills somebody has... ;-) Since you haven't provided enough details, I/we have to make some assumptions. But let's set naming conventions first: - WiFi net = net...
- Wed Jun 25, 2014 1:14 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,
Best wishes, Ivan Zilic.
Do you have an ammeter (universal instrument which can measure also current) ?pieterbl wrote:It still doesn't work properly.
Best wishes, Ivan Zilic.
- Tue Jun 24, 2014 6:23 pm
- Forum: Beginners
- Topic: Mobile Pi - Power Solution?
- Replies: 5
- Views: 1195
Re: Mobile Pi - Power Solution?
Hi,
Best wishes, Ivan Zilic.
There were some discussions here in the past... search for "UPS" and/or "gold cap".smx wrote:Sorry, I wasn't clear enough. I mean, whether solutions exist that shutdown if the power is getting low or that supply extra power in an accident of power loss.
Best wishes, Ivan Zilic.