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Discussion Title Created date
Looking for RPM (solved)
I'm trying to make my RPM counter on my car. I'm working with signal "w" from alternator. The output is near 15v. Do you think that a 11v zener diode is suffisant to connect my...
Thursday, 19 November 2009 - 22:28
pwm duration for hitec servo
Does somebody knows where to find precise pwm for servo (modelist). I can't found the precise datas for Quote: hitec hs 402(old one). Thanks
Wednesday, 18 November 2009 - 11:44
convert data for usart
Hello I can't send my data to my pc from attiny2313. Lets see my fonction and a part of my code : static void printstr_p(const char *s) { char c; for (c=pgm_read_byte(s); c...
Wednesday, 18 November 2009 - 11:11
Hot regulator
Hello I got a card for show tension on a lcd. The 7805 regulator is hot!! The circuit take 1.7 A ? Does this values is normal?? Thanks
Wednesday, 11 November 2009 - 21:02
LCD-atmega8-peterfleury lib and ports...
Hello I'm working with an atmega8, and i use the peter fleury lib for lcd. I need to dispatch lcd connection on 2 ports off my atmega (to get free interrupts-pins and analog-in-...
Wednesday, 21 October 2009 - 09:13
interrupts go strange
Hello in my programm, after an interrupt, programm start from the beginning.. ... SIGNAL (SIG_INT0) { OCR0A = 0xFF; _delay_ms(10); compteur++; OCR0A = 0x0...
Sunday, 18 October 2009 - 17:10
Problem with pull up and hall effect sensor
Hello I'm trying for hours to use my hall sensor effect with interrupt... Let's see the heart of my problem : .... SIGNAL(SIG_INTERRUPT0) { compteur++; delay_ms(5); }...
Thursday, 10 September 2009 - 20:50
Temperatur sensor
Hello I'm looking for the tutorial about thermistor and avr (with ADC). I heard about, but i don't find it. Thanks...
Monday, 7 September 2009 - 14:23
Hi : conversion INTEGER -> DECIMAL [solved]
Hello I'm using ADC on atmega8. I cant' display the value off ACDH (on lcd) as i well I can't convert ADCH in decimal number to make the ration to 0..5v. So i try this with cal...
Saturday, 22 August 2009 - 09:56
input interrupt
Hi I'm looking for tutorial or good links about interrupts provoked by input (for a counter system). Thanks.
Tuesday, 21 July 2009 - 12:20
Choosing an avr and voltage division
Hi I got a project : show car voltage (11v-14v : battery charge) on a lcd panel. I begin to understand attiny2313 and 13 but i need to choose an avr wich have a analog digital...
Sunday, 28 June 2009 - 11:32
Problem of "invalid storage class" [solved]
Hello this is a part of my code : ... #define MCUCSR MCUSR int16_t pwm=0; volatile char rxbuff; int main (void) { TCCR1A = _BV(WGM10) | _BV(WGM11) | _BV(COM1A1) | _BV(...
Sunday, 17 May 2009 - 17:50