Post Created date
Is there any possibilities ? [Speed Sensing with ultrasound]
DocJC wrote:A photodiode would be a better sensor for this application. JC any links / references for this application ? thank you
Sunday, 26 May 2013 - 23:10
How to port arduino library ?
it's not directly to the chip pin since there's a function "wire.*"..... Any clues ?
Sunday, 26 May 2013 - 12:21
How to port arduino library ?
For example from arduino : // Aquire time from the RTC chip in BCD format and convert it to DEC void DS1307new::getTime(void) { Wire.beginTransmission(DS1307_ID); Wire.write...
Sunday, 26 May 2013 - 12:20
How can I conver NTC voltage output to Celcius ?
thank very much guys, it works as expected...
Sunday, 26 May 2013 - 09:29
How can I conver NTC voltage output to Celcius ?
it works, but strangely, when I tested it, the temperature should go up, but displaying go down, is it because I put the resistor in reverse ?? thanks
Sunday, 26 May 2013 - 09:25
How can I conver NTC voltage output to Celcius ?
snigelen wrote:One detail. You have adcresistance = (long)((long)(1023*10000)/adc_result-10000); The inner expression "1023*10000" is int*int and will overflow (and later...
Sunday, 26 May 2013 - 09:17
How can I conver NTC voltage output to Celcius ?
snigelen wrote:One detail. You have adcresistance = (long)((long)(1023*10000)/adc_result-10000); The inner expression "1023*10000" is int*int and will overflow (and later...
Sunday, 26 May 2013 - 09:04
How can I conver NTC voltage output to Celcius ?
Here's the function I have used : double ntc_getSH(long adcresistence, double A, double B, double C) { // use the Steinhart-Hart Thermistor Equation // temperature (Kelvin) =...
Sunday, 26 May 2013 - 05:57
How can I conver NTC voltage output to Celcius ?
Thanks bob ;)
Sunday, 26 May 2013 - 05:32
How can I conver NTC voltage output to Celcius ?
ka7ehk wrote:The conversion is not straight forward because NTC thermistors are very nonlinear (resistance vs temperature). Standard methods are described here: http://en....
Sunday, 26 May 2013 - 05:01
Does anyone know on how to initialize ADC on ATMEGA128 ?
could it be this one ? thank you
Saturday, 25 May 2013 - 23:35
Does anyone know on how to initialize ADC on ATMEGA128 ?
This one is from AVR Studio 4 But where can I find it on AVR Studio 6 ? Thank you
Saturday, 25 May 2013 - 23:31

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