Search found 1750 matches
- Sun Jan 12, 2014 11:25 pm
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: Is there a simple high temp probe that can handle BBQ temps?
- Replies: 15
- Views: 13443
Re: Is there a simple high temp probe that can handle BBQ te
Hi, I was hoping to get some advice on a temperature probe for the raspberry pi. You could consider also contact-less temperature sensors. For example, something like this one: http://www.elechouse.com/elechouse/index.php?main_page=product_info&cPath=152_158&products_id=2241 Best wishes, Ivan Zilic.
- Sun Jan 12, 2014 4:01 pm
- Forum: Other projects
- Topic: Wireless Controller - 120/240 VAC
- Replies: 10
- Views: 3039
Re: Wireless Controller - 120/240 VAC
Hi, Check the datasheet MCP23008 is made by Microchip. Therefore, I'm considering their datasheet as the only relevant. It can be found here: ww1.microchip.com/downloads/en/DeviceDoc/21919e.pdf On its page 24, take a look at the table row D041. It specifies Input High-Level voltages for pins SCL and...
- Sun Jan 12, 2014 2:47 pm
- Forum: Automation, sensing and robotics
- Topic: RaspberryArduino Vending Machine
- Replies: 1
- Views: 1666
Re: RaspberryArduino Vending Machine
Hi, Matthew, Your description is very high-level... [joke mode on] If I may "convert" it to a message suitable for "Car forum", it would be like this: I'm planning to visit my friend and would take a car. Do you thing that a car is proper transportation ? If you have any suggestions, please let me k...
- Sun Jan 12, 2014 1:26 pm
- Forum: Other projects
- Topic: Wireless Controller - 120/240 VAC
- Replies: 10
- Views: 3039
Re: Wireless Controller - 120/240 VAC
Hi, I had a couple of MCP23008 chips laying around so that is what I used. I'm afraid that your design is improper. Summary: - you supply this chip with 5V, - minimum allowed voltage for high level on its serial pins is 4.0V (@ 5V supply), - actual voltage is max 3.3V (or even less, since schematics...
- Sun Jan 12, 2014 6:14 am
- Forum: Automation, sensing and robotics
- Topic: Question about a relatively simple project.
- Replies: 10
- Views: 2120
Re: Question about a relatively simple project.
Hi, I'm going to research opto-cuppler connections and see if this is a viable switch. Take this circuit: http://www.raspberrypi.org/forum/viewtopic.php?f=37&t=62783&p=465699&#p465699 What programming languages detect various states wired to the GPIO? You could go with Python, because you can get th...
- Sun Jan 12, 2014 6:04 am
- Forum: General discussion
- Topic: music
- Replies: 5
- Views: 605
Re: music
Hi,
Best wishes, Ivan Zilic.
Yes.Sagar_murthy wrote:can i store songs in Raspberry Pi and then play depending on the heart beat rate ??
Best wishes, Ivan Zilic.
- Sun Jan 12, 2014 4:59 am
- Forum: Troubleshooting
- Topic: SSH connection probelm
- Replies: 3
- Views: 1522
Re: SSH connection probelm
Hi,
When something is not working, Mac is always involved... what is not the case for router and RasPi...
Take any network traffic sniffer (on 3rd computer, if possible) and check who is actually sending packets and who is silent.
Best wishes, Ivan Zilic.
When something is not working, Mac is always involved... what is not the case for router and RasPi...
Take any network traffic sniffer (on 3rd computer, if possible) and check who is actually sending packets and who is silent.
Best wishes, Ivan Zilic.
- Sun Jan 12, 2014 4:45 am
- Forum: General discussion
- Topic: music
- Replies: 5
- Views: 605
Re: music
Hi,
Best wishes, Ivan Zilic.
Yes.Sagar_murthy wrote:can i program Raspberry pi to play music ?
Best wishes, Ivan Zilic.
- Sun Jan 12, 2014 4:10 am
- Forum: General discussion
- Topic: Find a wireless data sender
- Replies: 4
- Views: 477
Re: Find a wireless data sender
Hi,
Best wishes, Ivan Zilic.
Hmmm,... what is "regular USB wireless receiver" ? Do you mean WiFi dongle ?Rock123 wrote:regular USB wireless receiver
Best wishes, Ivan Zilic.
- Sun Jan 12, 2014 4:06 am
- Forum: Advanced users
- Topic: Design/Dev help needed..for blind disabled son
- Replies: 6
- Views: 1495
Re: Design/Dev help needed..for blind disabled son
Hi, This needs to be a v sturdy controller box Let me start at this hardware side... you can take standard foot switch(es) like this: http://www.maplin.co.uk/p/onoff-footswitch-with-635-mono-jack-plug-du98g More of them can be found here: http://uk.farnell.com/jsp/search/browse.jsp?N=2031+204021&Ns=...
- Sun Jan 12, 2014 2:25 am
- Forum: General discussion
- Topic: Find a wireless data sender
- Replies: 4
- Views: 477
Re: Find a wireless data sender
Hi,
Your question sounds (at least for me,... and obviously not for Dougie) that you'd like to communicate between RasPi and some other device...
Best wishes, Ivan Zilic.
What is receiver ?Rock123 wrote:I need to send out a small piece of data wirelessly from Raspberry, and let the other receiver get it.
Your question sounds (at least for me,... and obviously not for Dougie) that you'd like to communicate between RasPi and some other device...
Best wishes, Ivan Zilic.
- Sun Jan 12, 2014 2:20 am
- Forum: Automation, sensing and robotics
- Topic: How to Turn On and Off House Hold Electronics?
- Replies: 3
- Views: 1226
Re: How to Turn On and Off House Hold Electronics?
Hi,
Best wishes, Ivan Zilic.
You can get a lot software- and hardware-related information here -> use search string "relais".Matthew Moisen wrote:Would anyone be able to point me in the right direction?
Best wishes, Ivan Zilic.
- Sun Jan 12, 2014 2:08 am
- Forum: Networking and servers
- Topic: RPi Firewall
- Replies: 14
- Views: 6321
Re: RPi Firewall
Hi, now when trying to ping, I can see on tcpdump that the request goes from my ip, to the pi wall, but then the pi wall returns the request as refused. Refused ? Rules switch just between accept and drop actions, so requests are not (actively) refused. Appears these rules are doing their job a litt...
- Sat Jan 11, 2014 2:11 pm
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: safe to "hot-plug" sensors and other chips to rasPi?
- Replies: 5
- Views: 3738
Re: safe to "hot-plug" sensors and other chips to rasPi?
Hi, So apologies if this is a stupid question... but is it safe to "hot-plug" things like LEDs, temperature/light sensors, or servo motors onto the GPIO pins on a rasPi? Or do I need to be specifically careful and only rewire my various creations when the raspi is powered fully down? Generally, you ...
- Sat Jan 11, 2014 1:51 pm
- Forum: Automation, sensing and robotics
- Topic: How the Calibration works in the sensor
- Replies: 1
- Views: 1288
Re: How the Calibration works in the sensor
Hi, Assuming that somehow i manage to get the calibration gas with 1000ppm, and i set the value of Potentiometer to 20K, after releasing the gas , how would I know if the sensor is callibrated successfully ? You re-apply 1000ppm again and output value should represent this concentration. and after t...
- Thu Jan 09, 2014 2:23 pm
- Forum: Other projects
- Topic: How can I make a raspberry pi os
- Replies: 12
- Views: 3050
Re: How can I make a raspberry pi os
Hi,
You made my day...
I'm thinking... why don't you compose this OS idea into a presentation-like form and try with a crowdfounding ?
That would force you to do at least some brainstorming...
Best wishes, Ivan Zilic.
didi wrote:the industry giants do not want us to have this kind of power.
You made my day...I'm thinking... why don't you compose this OS idea into a presentation-like form and try with a crowdfounding ?
That would force you to do at least some brainstorming...
Best wishes, Ivan Zilic.
- Thu Jan 09, 2014 1:52 pm
- Forum: Other projects
- Topic: using a Pi as virus scanner for other systems
- Replies: 13
- Views: 8813
Re: using a Pi as virus scanner for other systems
Hi Richard, I agree with redhawk. The Rpi is not practical. There just isn't enough bandwidth or CPU power to do what you want. I don't want to be mean... but how do you know what I want... ;-) Let me write you my personal use case, where RasPi fits perfectly - I have a dedicated network drive which...
- Thu Jan 09, 2014 1:36 pm
- Forum: Other projects
- Topic: using a Pi as virus scanner for other systems
- Replies: 13
- Views: 8813
Re: using a Pi as virus scanner for other systems
Hi, It would be better to apply measure(s) of prevention to the incoming data than to react to an infected file. Intruders detection & prevention is also something what we could discuss about, but I believe that it is totaly different area... Therefore, it would be a big mistake to spread the inform...
- Thu Jan 09, 2014 1:22 pm
- Forum: Other projects
- Topic: using a Pi as virus scanner for other systems
- Replies: 13
- Views: 8813
Re: using a Pi as virus scanner for other systems
Hi, With that said there is nothing wrong in using the Pi as a virus cleaner it's simply not practical to do so. This could be practical when we're talking about network drives (NAS)... or if we delegate the RasPi also to permanently "convert" USB drives into networked ones. (Just imagine a blog tit...
- Thu Jan 09, 2014 1:12 pm
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: Amplify IR signal
- Replies: 11
- Views: 3341
Re: Amplify IR signal
Hi, I'm trying to connect multiple IR LEDs (5mm) in my raspberry. Please provide a link to LEDs' datasheet. The data that they are 5mm is far from being enough... actually, it is irrelevant... My problem is that the LED lights too weak. Have you checked that a carrier frequency is equal on both (all...
- Thu Jan 09, 2014 10:49 am
- Forum: Interfacing (DSI, CSI, I2C, etc.)
- Topic: Mikroelektronics DAC over I2C
- Replies: 2
- Views: 935
Re: Mikroelektronics DAC over I2C
Hi, There are two clock pins on the DAC that I'm not sure what to do with... DACL and ADCL... I'm not sure if I need to hook these up or if I don't need them because I'm using it over I2C. Here the I2C is control bus and SPI-marked pins belong to data bus. You must use both of them. What to do with ...
- Thu Jan 09, 2014 9:32 am
- Forum: Advanced users
- Topic: Want to Hire a Pi Programmer with Electronics Knowledge
- Replies: 10
- Views: 2485
Re: Want to Hire a Pi Programmer with Electronics Knowledge
Hi, Any takers? Upf, no luck so far ??? I see at least two different options you could take - first is to visit local (technical) college or robots/electronics hobby clubs. There you can get enthusiasts and you can involve him/her/them into your project... this would be a cheap and nice social exper...
- Thu Jan 09, 2014 12:55 am
- Forum: Beginners
- Topic: RFID reader - USB
- Replies: 2
- Views: 578
Re: RFID reader - USB
Hi,
Yes, RasPi is one of them, as we all know...
Best wishes, Ivan Zilic.
According to the comments, this reader is compatible with any computer + operating system which supports USB keyboards.assuncao wrote:I would like to know if anyone knows if the RFID reader below is compatible with Raspberry Pi?
Yes, RasPi is one of them, as we all know...
Best wishes, Ivan Zilic.
- Wed Jan 08, 2014 2:47 pm
- Forum: Beginners
- Topic: Control 16-channel relays board
- Replies: 2
- Views: 1912
Re: Control 16-channel relays board
Hi, I'd like to know if it is possible to control all these 16 relays of this board: Yest it is. Can I use the GPIO for that? Yes you can. Do I need anything else or just cables to connect them? You need additional circuit. As you can see from poor specification (they always make me smile when color...
- Wed Jan 08, 2014 3:10 am
- Forum: Gaming
- Topic: Arcade controls
- Replies: 5
- Views: 3058
Re: Arcade controls
Hi Dan, I wanted my controls to behave as keyboard inputs, to make programming for them easier... I have a solution for this one - a dedicated USB chip which offers you 30 keyboard inputs. You can add additional one to get 30 more unique keyboard inputs. The advantage of this chip is that multiple b...