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why do these two different?
This.. uint32_t DAC; uint16_t dist,span,zero; span = 1000; zero = 50; DAC = 255*(dist-zero)/(span-zero); with this... uint32_t DAC; uint16_t dist,span,zero; span = 1000;...
Wednesday, 24 September 2008 - 01:49
PWM + Filter
Hi, I want to use mega8 to generate a sine wave using it's PWM output. The frequency range would be from 20Hz to 20KHz (audio frequency). What is the good PWM frequency should I...
Tuesday, 13 May 2008 - 06:02
Automotive design consideration
Hi there, does everyone have ever design some kind of automotive related electronic stuff? I'm going to make a kind of media player to fit inside my car. I've heard from people...
Saturday, 10 May 2008 - 05:31
About Dean's MyUSB
Hi fellows, Idea just came out of my mind. I want to make some kind of USB speaker application using AT90USBKey - AT90USB1287. I know there are many direct USB audio chip (sound...
Tuesday, 29 April 2008 - 04:11
i2c slave using AVRLib
hi, does everyone know how to make an i2c slave device using library i2c.c under AVRLib? I'm confused how to use it. I've done made several projects that utilize this library as...
Friday, 28 March 2008 - 10:04
Array manipulation.
Hi, I want to manipulate some array type variables. char first[6] = {"01234"}; char second[6] = {"56789"}; char *third; char third = malloc(11); strcpy(third,first); strcat(...
Thursday, 27 March 2008 - 08:05
Don't understand malloc issue
Hi there, i have code: void ReadMultipleByte(uint8_t Addr, uint8_t amount, uint8_t *result) { uint8_t *packet; packet = (uint8_t *) malloc(amount); packet[0] = Addr;...
Tuesday, 11 March 2008 - 10:01
Which temperature sensor do you choose?
I want to make a simple temperature sensing a drum filled with water, I just want to measure the air temperature inside the drum. The temperature range from 0 Celcius to 120...
Monday, 10 March 2008 - 03:10
ATmega8 operating at lower supply voltage than recommended
Hi, Preamble: according to datasheet we all know that ATMega8 operates at 4.5V to 5.5V and also the ATMega8L operates at 2.7V to 5.5V. OK. General knowledge: I have a circuit...
Wednesday, 20 February 2008 - 09:37
Passing array return value
Hi there, uint8_t anyfunction(void)[] { uint8_t anything[4]={1,2,3,4}; return anything; } int main(void) { uint8_t somevar[4]; somevar=anyfunction(); while(1); return 0...
Tuesday, 5 February 2008 - 07:30
Strange thing happens on Port D bit 4.
Hi there, I would like to connect 6 IR sensor modules to an ATMega8, read the status of each sensor and send the result to PC using USART. Those sensors were handmade and well...
Saturday, 29 December 2007 - 09:32
SPI anomaly :(
Hi everyone, i want to ask questions about SPI communication using ATMega8 and ATMega16. Here's a brief info about my system. I'm connecting two AVRs using SPI communication. The...
Tuesday, 20 November 2007 - 12:35

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