Recent content by Tomson

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    Some kind of morse code device

    Thank you for all the replies, especially Kris for the circuit design! I will try to built this device as it is for my little son who desperately wants to morse wit his friend. They only have old Nokia mobile phones and no smart phones so a software solution is not possible. I will be fun to...
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    Some kind of morse code device

    Yes, davvenn got what I meant :) A circuit design would be very great Kris. This is a really generous offer from you. I hope I can return the favour somehow :) I am located in Germany and usually use conrad.de or reichelt.de as suppliers for my projects but I am also able to order from any...
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    Some kind of morse code device

    Hi Kris, Thank you for the fast answer. The mobile phones shall only be used to send the signal over a longer distance (as transmitters). Instead of speaking the mobile phones shall only send and receive the buzz tones through headsets. So that you could actually morse with no need to speak. So...
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    Some kind of morse code device

    Hi, I try to build a morse code device but I have some problems. The concept is to use a momentary switch connected to a DC 9V battery and a device to generate a buzz as well as a mobile phone with headset. I thought of something like a piezo buzzer but I can't use a piezo buzzer because my...
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