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PCF8574 I2C port expander
I am having problems with getting a PCF8574 I2C port expander to work properly with an ATmega168. Right now, I am experimenting with just reading the ports through I2C. This is...
Thursday, 21 May 2009 - 04:22
measure multiple PWM signals
I would like to measure the duty cycle of the PWM signal from 5-10 different devices. How can this be done with one input capture pin? I need some easy way to cycle through all...
Monday, 9 March 2009 - 02:16
code explanation
I am looking at the bootloader avr-gcc code for appnote AVR109 and I came across this bit. sendchar((BLOCKSIZE>>8) & 0xFF); sendchar(BLOCKSIZE & 0xFF); void sendchar (...
Monday, 23 February 2009 - 17:37
XBee opinion
I would like to know if anybody has experience with using XBees in a house. More specifically, how well do they perform going through walls? I am guessing that the 50mW versions...
Tuesday, 17 February 2009 - 06:39
4-Wire PWM PC fan
I am just learning basic electronics and programming AVRs. I have gone through all the tutorials for working with bits, timers and USART, etc. I am a bit more comfortable, now...
Saturday, 7 February 2009 - 19:13