Search:

Type: Posts; User: thebadtall

Page 1 of 14 1 2 3 4

Search: Search took 0.02 seconds.

  1. Replies
    1
    Views
    1,437

    Closed: Long range radio telemetry for RC plane

    Hello friends

    I built a telemetry pair for a friend. An idea I used to have for a really long time, but I had lack of interest to do it only for myself.

    All the system is based on arduino and...
  2. Closed: Re: Audio transmitter - two receivers suggestions

    Aha, thats not good news. I would input the audio signal through the 3.5mm fem.jack and maybe use the mic to say a hello :P

    I will probably get a 15W fm transmitter assembled kit (RD15HVF1) for...
  3. Closed: Re: Audio transmitter - two receivers suggestions

    I havent found unfortunatelly any attenuation network, so i believe that its just a micropower transmitter.

    I am interested in buying a BH1417 kit that found on ebay, but dont know if that too can...
  4. Closed: Re: Audio transmitter - two receivers suggestions

    Hello, I found out that I had a broken old car-fm-transmitter, bought around 2008 from DX
    After some "retrofit" i made it work.
    114227
    With 75 cm antenna it reaches through the other side of the...
  5. Closed: Re: Audio transmitter - two receivers suggestions

    This is what I have found for the 1310. I will test it as soon as it arrives and then will decide.
    114014
    The specifications of the amplifier module - seller - mentions 14V max supply.
    However,...
  6. Closed: Re: Audio transmitter - two receivers suggestions

    This is what Im thinking of
    114013
    Any suggestions ?
    Amplifier module is TA2020 , solar modules are 5v/100mA . Not intended to run from sun , but charge a bit the battery while its not running.
  7. Closed: Audio transmitter - two receivers suggestions

    Hello, I intend to build a pair of wireless - totally cordless speakers, using class D amplifier on each speaker, battery and audio receiver

    I will probably use fm receiver on the speakers and car...
  8. Replies
    5
    Views
    2,467

    Closed: Re: Help interfacing ESP8266

    I use serial2 of the atmega2560 to communicate with 8266 and serial3 to ftdi usb/ttl to read debug.
    The error message is usually "busy" while trying to obtain IP using AT+CIFSR command.
    ...
  9. Replies
    5
    Views
    2,467

    Closed: Re: Help interfacing ESP8266

    The power supply is 200mA for the 3v3 rail.
    I have used 2x 3300uF / 6v polarised capacitors and 2.2uF non polarised

    I dont know wich version it runs, I will check that tomorrow

    I am not using...
  10. Replies
    5
    Views
    2,467

    Closed: Help interfacing ESP8266

    Hello friends

    I have spend around 10 hours trying to make a web server using atmega2560 and ESP8266 with no success.

    The esp8266 is communicating successfully through serial at 9600
    I have...
  11. Closed: Re: How to connect some sensors to motherboard?

    For less troubles,less expenses try arduino ^^
  12. Replies
    4
    Views
    949

    Closed: CPLD Help needed from a begginer

    Hello !
    Lots of free time, and thought to get involved with CPLD for no reason (just for educational reason)

    I have ordered the EPM240 board and blaster programmer.
    I have downloaded the...
  13. Replies
    6
    Views
    784

    Closed: Re: Idea about RMP calculation

    Yes this is a nice approach too. Do you mean to read the coil from stator wich feeds the ignition coil ?

    However, there is no regulator or capacitor or anything in the alternator wiring as it is...
  14. Replies
    6
    Views
    784

    Closed: Re: Idea about RMP calculation

    No, I havent yet started. I am thinking if voltage measuring is a good approach
  15. Replies
    6
    Views
    784

    Closed: Idea about RMP calculation

    Hello I would like to calculate the RPM's of my old vespino.
    Since it is difficult to screw an encoder in the stator, I thought of
    measuring the ac voltage (of generator) through a 10k voltage...
  16. Replies
    12
    Views
    6,351

    Closed: Re: TEA5767 module pinout needed

    It was the cheapest and I grabed a couple. I had bought the "common" one , with the crystal in it 3 monhts ago , tested it, listened to music with it and when i wanted to integrate it on an...
  17. Replies
    12
    Views
    6,351

    Closed: Re: TEA5767 module pinout needed

    I am greateful for your help. I dont know what I missed in my search.
    The bad thing is that board probably needs a crystal, and I dont have a 32,768 KHz neither a 13MHz. I only have 16 and 12 MHz....
  18. Replies
    12
    Views
    6,351

    Closed: Re: TEA5767 module pinout needed

    Of course I have searched with any code I have found in that pcb
    101713101714101715
    But I believe that information is out there. I seek in wrong places , purhaps.
  19. Replies
    12
    Views
    6,351

    Closed: Re: TEA5767 module pinout needed

    Yes I have attemped to contact, but as you mentioned it is new year.
    As far as I know those retailers have no clue about what they sell and I expect that the answer will be "My friend really sorry...
  20. Replies
    12
    Views
    6,351

    Closed: Re: TEA5767 module pinout needed

    Hello Krypton and thank you for your interest and time. But these are 5+5 pins. Not the same pinout as the module i have wich is 4 on the up and 6 on the bottom side.

    I know that top left and top...
  21. Replies
    12
    Views
    6,351

    Closed: Re: TEA5767 module pinout needed

    Hello, I have tried that but i cannot verify the connections as the pins of the chip are very difficult to reach with any tool. I tried with tweezer connected to contact tester but no luck . I can...
  22. Replies
    12
    Views
    6,351

    Closed: TEA5767 module pinout needed

    Hello can you please provide me the pinout of this board ?

    101693

    I have tried to detect the connections through datasheet connections of the ic, but cant contact most of the pins.

    Thank you
  23. Replies
    3
    Views
    705

    Closed: EEPROM Cycle question

    Hello.
    They mention tha EEPROM has 100.000 write cycles.
    My question is "100.000 writes per address or per whole memory ? "
    ( Can I write 100.000 times on address #1 , then another 100.000 times...
  24. Replies
    4
    Views
    1,205

    Closed: Re: 5.1 Output from motherboard

    it was actually the manufacturer's application
    99604
  25. Closed: Re: ATmega8 with bootloader loses the program

    The cause seems to be the unfiltered dac power supply . Wich after replacing the 100nF capacitor on the avcc gnd pins it stop resetting. ( The previous avcc capacitor was failed )
Results 1 to 25 of 338
Page 1 of 14 1 2 3 4