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Recent content by maros_d

  1. M

    [SOLVED] SIM900 - How can I find out that recipient picked up the phone?

    There is no special code. I activated CLCC mode with this: UART_send_string("AT+CLCC=1\r\n"); Thats all. You will get CLCC message automatically when phone call is established or canceled.
  2. M

    [AVR] code help an error coming

    Re: code help an error coming pls solve Sorry, but you should be thinking a little bit about it. This forum is of course for help, but we couldnt write the entire source code instead of you. If atmega16 doesnt have some register or peripheral module, so use another or rename the register...
  3. M

    [AVR] code help an error coming

    Re: code help an error coming pls solve and of course you have to wait for 200ms after startup before you call lcd_config(). And I have an experience that it is good to send 3x lcd_cmd(0x03); at first. This is my LCD routine: void LCD_init( void) { // set LCD port LCDPORTI_C |= 0xfc...
  4. M

    [AVR] code help an error coming

    Re: code help an error coming pls solve T1 (PB1) pin if you are using a counter and OC1A and OC1B if you are using a timer
  5. M

    component marking not clear

    me too. You could search some schematics for PIR sensors on the internet. It depends on the application
  6. M

    inductor toroid core

    and ETD ferrite cores? These inductors and transformers are used in switching power supplies at higher frequencies..
  7. M

    [AVR] code help an error coming

    Re: code help an error coming pls solve wait a moment...step by step. Do you able now to compile your source code or not? nothing... in this situation is while(1) {} only neverending loop, where program is waiting for some interrupt from the Timer1...when the interrupt occurs, program...
  8. M

    component marking not clear

    Its quad 2-input NOR gate, so maybe for logical operation (if there are two PIR sensors) or for negation of a signal...or some signal processing (sharp edges and so on).
  9. M

    [AVR] code help an error coming

    Re: code help an error coming pls solve Look at my last post: And you cannot call ISR routine in a while(1){} routine. It's not make sense
  10. M

    [AVR] code help an error coming

    Re: code help an error coming pls solve I edited my last post. If you have ATmega16, so you have a bad interrupt vector. Try this: TIMER1_CAPT_vect because the vector what you have right now is for ATtiny devices.
  11. M

    [AVR] code help an error coming

    Re: code help an error coming pls solve Try this: #include<avr/io.h> #define F_CPU 1000000UL #include<util/delay.h> #include<stdio.h> #define LCD_RS 0 #define LCD_RW 1 #define LCD_EN 2 #define LCD PORTC void lcd_config(); void lcd_cmd(unsigned char); void lcd_data(unsigned char); int...
  12. M

    inductor toroid core

    Yes, they have less efficiency then toroidal cores, but if you dont have any toroidal core, you have a "no choice". To mix iron powder with epoxy is not good idea for me, because you have to mix properly so as the mixture was homogeneous. And I think that efficiency will be lower than EI core -...
  13. M

    inductor toroid core

    I understand... I thought that you are making some type of equalizer where inductors are used too. If you have not a toroid core, so you can use EI core too. Could you tell me which inductance you have to have?
  14. M

    automatically goes standby

    You have to watch a really short movies and everything will be OK :grin: Maybe your question is for LG support and service in your country.
  15. M

    inductor toroid core

    Maybe you can use a synthetic inductor - gyrator:

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