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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by Mullemeck

  1. M

    30 sec delay

    I'm using a NE555N. And as low as possible..
  2. M

    30 sec delay

    Hi! I need a circuit that when activate from a button it is on for about 30 sec. I've tried whit a 555 timer but the problem is that it constantly draws a current of 4mA even if it isn't in use. How could i solve this problem?
  3. M

    Pic16f877A programmer

    i have rebuilt the JDM programmmer and it seams to work. I don't get any errors while programming and when i read the pic there is code in it. the problem now is that the pic doesn't do anything. I can't even get it to blink whit a led.. I can't figure out what's the problem..
  4. M

    simple pic programmer problem!

    i dont't think you should take 5v from your serial port, it might not be abel to deliver enough current to the servos. instead take power from the PSU, It'll be easy too
  5. M

    simple pic programmer problem!

    did you get the JDM programmer to work? and did you use IC-prog?
  6. M

    simple pic programmer problem!

    did you try the schematics for the Picup programmer that i posted earlier? it worked for me whit a pic pic16f84a
  7. M

    Pic16f877A programmer

    it sure supports alot of pic:s to bad it's so expensive, anyone has an schematics for it?
  8. M

    Transmitter and reciver for 433Mhz

    okay if it's that hard i guess it might even be cheaper to buy the modules. thanks anyway
  9. M

    simple pic programmer problem!

    Try writing to your pic whitout the programmer cabel in it, you'll probably get the same error. download this file https://www.electro-tech-online.com/ place it in the same cataloge as ic-prog.exe and run ic-prog. goto settings->options->Misc and check the box where it says "enable...
  10. M

    Pic16f877A programmer

    okay I'll try that.
  11. M

    Transmitter and reciver for 433Mhz

    Hi! Does anyone have a schematic for a transmitter an a reciver that operates in 433mhz thx
  12. M

    simple pic programmer problem!

    Men vad trevligt. lite smygreklam för ett annat svenskt elektronikforum www.geekjoan.com/forum
  13. M

    simple pic programmer problem!

    i've also tried IC-prog and i think that your problem is a software problem. I think you can fix your problem by installing som additional drivers. another good and very easy programmer that I'm using right now is Picup **broken link removed** It has worket pefekt for me with the...
  14. M

    Building first robot

    if you don't know anything about pic programming i suggest that you fist tries to blink whit som leds an small experiments before you starts with your robots.
  15. M

    USB as pwr sply

    Most usb-ports can only supply about 500mA so make sure that your radio doesn't draw more than that or you might en up burning your motherboard. another more safer way would be to take +5v from a molex connector inside the computer instead

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