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Chris_Pinter

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Christopher Pinter

As the founder and President of Pinter Electronics Consultants Chris has been instrumental in developing the business from its inception in 2005 to its current status.  He has over 15 years of experience in radio and wireless communication hardware design and product development. Chris graduated from the Okanagan University with a diploma in Electronic Engineering Technology and the British Columbia Institute of Technology with a Bachelor of Technology in Electronics.

  • in reply to Former Member
    hello.i write this note just want to say it is my first time to come to the great web site .i am from china and hope to make friends and exchange information

  • Where I can buy a radio module which can integrate AIS in an ARM board and programmed with android?
    http://es.wikipedia.org/wiki/Automatic_Identification_System

     

    ¿donde puedo comprar un módulo de radio para AIS que pueda integrar en una placa ARM y programar con android?

    http://es.wikipedia.org/wiki/Automatic_Identification_System

  • hi i want to know  how i connect two or more office located at different places with radio or wireless communication.

  • in reply to Former Member

    Hello Amalngg,

     

    Wifi was specifically designed for this application.   You want to look at 802.11A devices between buildings.  This protocal operates at 5.8GHz and is very line of sight...so you will not get a lot of interference as long as you use a directional antenna.

     

    For access to the wireless network within your building you want to use 802.11G or N devices to get the maximum bandwidth and user access.

     

    I hope this helps.

     

    Chris Pinter

  • in reply to Chris_Pinter

    Sir,

         I have an issue deciding the value of speed while calculating the wavelength of a signal. The formula I am using is lambda = c/f where 'f' is the frequency and 'c' is the speed. The issue is, while calculating the wavelength of a signal with frequency, say, 10KHz, what should be the value of speed that I should consider? So far I have read in many books and also on the internet that the speed I should consider is the speed of light which I find as wierd because the speed of signals in the frequency range 20Hz to 20KHz is about 340 m/s in air since these are sound waves. So considering the speed of light for finding the wavelength of a much slower signal is something I dont understand.

  • Hi Chris,

     

    I have a customer who wants me to design a ticketing product. The object is that the unit price must be low, but the quantities should be high. The size must be very small. The product will include a display, microcontroller and RF link. My customer anticipated using RFID for the RF link but as I understand it, the tags are stand-alone and do not have a wired read or write interface to a microcontroller. What I need is NFC (near field communications) but I cannot find any off-the-shelf modules that I can use. Looking around at other technologies, there are RF interfaces at 433, 868 or 915MHz (Alpha modules) and I have found small antenna at these frequencies.

     

    My brief at the moment is to prove the concept and provide a demonstration unit. Designing the completed product will only follow if a customer can be found justifying continuing development of the product.

     

    Can you suggest any other solutions that I should be looking at?

     

    Kind regards,

    Paul

  • Hi Chris,

    I want to start working on a project that I am not sure where to start (because I have little knowledge of electronics). Here is a basic example of what I want to do. Lets say I have some lights including their own power source and farther away I have a control board with some buttons on it including its own power source of course. If I wanted to wirelessly turn on any light individually or simultaneously how would I do so?

    Question is simply: What can I use as a transmitter and receiver (maybe an IC of some kind)?

    I can wire and solder fine so no problems there but I just need advice as to what components I would need to use

    thanks,

    bp

  • i like to use NFC with suitable microcontroller on my project so i don't have to use LCD to display current/voltage/temp instead this varibales can be display using any existing NFC cell phone. Can you suggest any NFC devices thats i can buy from element14. Thanks

  • Chris:

    I'm looking for an off-the-shelf low cost < $75 solution for wireless remote control relays. Basically, I want to remotely control a six (6) zone  24 VAC, (0.3 A inrush) automatic sprinkler valve..

    This is similar to what is available to remotely turn on an outdoor holiday display e.g. 75 range. But instead of switching 120VAC it would provide a six (6) SPST dry contacts.

  • Hi

     

    I'm trying to transmit voice data over a 433mhz fsk module . it has 4 data lines and i am able to send data eazily but not able to

    achieve the tx rate nessesary to transmit the data losslessly. Is there any encoding scheme that i can apply to achieve better fidelity ....