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ATmega8 intefacing 7-seg. display multiplexed for voltmeter
Ok.
Sunday, 19 January 2014 - 20:09
ATmega8 intefacing 7-seg. display multiplexed for voltmeter
Dear Kartman, My uC take 3 adc samples and delay between 600usec and average them and the display. Three samples are sufficient or should be increased.
Sunday, 19 January 2014 - 04:38
ATmega8 intefacing 7-seg. display multiplexed for voltmeter
Plese let me know that I built ATmega8 based voltmeter using 7-segment display at 8MHz and ADC frequency 8MHz/2=4MHz. So, the third digit is changing its value fast then how to...
Saturday, 18 January 2014 - 04:25
ATmega8 intefacing 7-seg. display multiplexed for voltmeter
Please let me know I wrote given code for displaying ADC input values in voltage form but digits are not still and also note that digits are not flickering. In simulation, the...
Wednesday, 15 January 2014 - 03:18
ATmega8 intefacing 7-seg. display multiplexed for voltmeter
Thank you for all.
Wednesday, 15 January 2014 - 02:40
ATmega8 intefacing 7-seg. display multiplexed for voltmeter
Quote:also do you have a clue what the line "_delay_ms(5);" does? how good are your eyes? _delay_ms(5) use for generating delay between segments to on and off.
Tuesday, 14 January 2014 - 14:15
AC 220V INPUT AND FILTERED OUTPUT
Dear Kartman , bob ,ka7ehk. Thank you for all frineds.
Friday, 10 January 2014 - 03:49
AC 220V INPUT AND FILTERED OUTPUT
Dear meslomp, I was open some branded Voltmeter and Ammeter they did not use transformer,they used circuit I mentioned in this thread but friends of this thread are doing care for...
Thursday, 9 January 2014 - 19:00
AC 220V INPUT AND FILTERED OUTPUT
Dear JC, Thank you for good advice I can easily do this. But I designed a voltmeter is for giving three phase voltage readings,Have I use three phase transformer.
Thursday, 9 January 2014 - 03:31
AC 220V INPUT AND FILTERED OUTPUT
After reading replies of all I decided to leave this worse circuit and play other one by your suggestions.Thank you for all that they are care for me and other people who read...
Wednesday, 8 January 2014 - 18:58
AC 220V INPUT AND FILTERED OUTPUT
If I convert AC 220V to DC 220V by using bridge rectifier and voltage divider circuit. Is this right approach or wrong way?
Wednesday, 8 January 2014 - 08:01
AC 220V INPUT AND FILTERED OUTPUT
Dear kartman, I need filtered output from that circuit because when I connect that circuit to my ATmega8 based voltmeter the voltage is not constantly show. As like three digits(...
Wednesday, 8 January 2014 - 07:40

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