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AVR Analog Comparator Interrupt Problems
ka7ehk wrote:But, I am puzzled. The title of this thread is about Comparator Interrupts. Yet, so far, there seems to be nothing about comparators. Dear ka7ehk, In reality I need...
Saturday, 1 February 2014 - 18:34
AVR Analog Comparator Interrupt Problems
Kartman wrote:Vref plays no part if you use logic inputs. Your code only sets/clears the one port bit for both channels. This will give strange results. Dear I am not using logic...
Saturday, 1 February 2014 - 02:52
AVR Analog Comparator Interrupt Problems
Dear theusch, Do you mean that I leave ADC channels and but only compare the Vref value with any inputs and set or reset the output? If,Yes,so this logic is reasonable. Thank you...
Friday, 31 January 2014 - 21:35
Ammeter signal conditioning
Torby wrote:You can also measure current by putting a magnet sensor, say a hall effect part, by a coil. Dear Torby, Please kindly provide me information about Hall Effect, its...
Thursday, 30 January 2014 - 17:46
Ammeter signal conditioning
Another Ammeter I saw "MAKE:AUTONICS" , they used 40 mili-ohms resistor and current transformer output connects with its leads. I think it is use for current-to-voltage conversion.
Thursday, 30 January 2014 - 16:45
External Vref of ATmega8
Thank you for description. Your 1st point ans:I am using transformer step-down. Your 2st point ans:Rectifier used. Your 3st point ans:Voltage divider used for comparator Your 4st...
Wednesday, 29 January 2014 - 09:51
External Vref of ATmega8
ka7ehk wrote:If you make an equal resistor voltage divider from Vcc to ground, and connect the center of the divider to one of the comparator inputs and your test signal to the...
Wednesday, 29 January 2014 - 02:53
External Vref of ATmega8
So what should I do for fulfill my purpose. If voltage increase 5V then PB0 should be on and if voltage decrease 5V the PB0 should be off.And if set Vref to 3V then PB0 should...
Tuesday, 28 January 2014 - 22:53
External Vref of ATmega8
Ok.
Tuesday, 28 January 2014 - 22:48
External Vref of ATmega8
jccordill wrote:Setting AREF to use VCC or internal 2.56v will easily be able to measure your 1v dc signal, no need to switch references. I cannot set fixed because my design...
Tuesday, 28 January 2014 - 22:06
External Vref of ATmega8
I built this one but bit PB0 continuously on???? #include #include int main(void) { DDRB = 0x07; // Setup PB0, PB1 and PB2 as output...
Tuesday, 28 January 2014 - 21:57
External Vref of ATmega8
Because I need selectable reference. I am making over-voltage protector device. For example: If reference voltage 1V and ADC channel voltage 0.5V then no action but...
Tuesday, 28 January 2014 - 21:53

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