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reading from dht22 humidity sensor
why can't this code work with dht22. it displays wrong values on lcd 2.152% however humidity is 69% /***************************************************** Chip type...
Tuesday, 12 February 2019 - 10:11
analog to digital converter on atmega8
Iam trying to use ADC of atmega 8 with external 8 MHz crystal. the adc result is sent to PORTB and i tested it using led. now i  want to compare  the result to...
Thursday, 1 February 2018 - 09:06
ATMega8 timer setup question
  I use atmega 8 , how to set Timer 1 in picture to count 1 second if i use external oscillator 8Mhz?
Thursday, 18 January 2018 - 08:56
digital clock doesn't count on lcd
this code for digital clock using codevision atmega 8 simulated on Proteus and it work, when i implement it on atmega 8 chip using real PCB  the lcd displays zero and...
Tuesday, 16 January 2018 - 10:10
serial programmer
in this link serial programmer [http://electronics-diy.com/avr_programmer.php what is the use of the components connected to pin 3 of rs232,if reset pin is already connected to...
Monday, 13 June 2011 - 13:50
if condition
here is ,if condition to compare between constant temperature(Tl,Th)and the readable temperature T. the lamp didn't respond to change in T .it doesn't switch on if T below the...
Friday, 3 June 2011 - 16:49
temperature controller
i have a problem here that i make temperature controller ,and i made compare function to compare the Readable temperature with those values that i have entered . but when i call...
Friday, 27 May 2011 - 23:07
external interrupt
this code for analog to digital and display the result on lcd after each conversion( adc interrupt); but i want to do int0 interrupt when i press the buton, when i enabled it,...
Friday, 20 May 2011 - 17:42
winavr and lcd
i am new user in winavr and i want to know how to connect lcd to one port the ability to change the port and i saw in pic lcd the d0 d1 d2 d3 is connected to gnd is that...
Friday, 6 May 2011 - 22:43
see this https://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=106056
Monday, 25 April 2011 - 10:30
temperature conversion
i asked about displaying the converted temperature on lcd icouldnot do it for example if i have 37 c how to display it on lcd after conversion #include unsigned int adc_rd; //...
Sunday, 24 April 2011 - 12:14
adc to lcd
i want to take analog value of temperature convert it and display on lcd i am using micro c for avr but i have error #include unsigned int adc_rd; //unsigned int temp;...
Friday, 15 April 2011 - 19:44