Comment summary #26
The comments are shown without formatting, links and images.
Comment 251 ... 260
| date | article | author | comment |
| 05 apr 2016 05:33:54 | Arduino wattmeter | Power factor | How can I measure power factor using pic microcontroller I found this link for power factor measurement using pic microcontroller http://microcontrollerslab.com/power-factor-measurement-using-microcontroller/ but how to write code ? |
| 28 maa 2016 21:32:11 | Measuring voltage | Mounir | thank you this is very helpful for me |
| 25 maa 2016 17:40:24 | Arduino wattmeter | Jesso | Sorry, but you don't understand what I mean. I am asking if you have an idea how can I include a start/stop button in your program. Thanks |
| 25 maa 2016 16:22:39 | Arduino wattmeter | Freddy | There is no start/stop button. The program runs immediately from power up. |
| 25 maa 2016 16:17:45 | Arduino wattmeter | Jesso | Hello, I have a question regarding the use of the start/stop button. I would to know if you can tell me how can I program the button so that once I press it, the loop runs. Thank you in advance. |
| 22 maa 2016 21:47:41 | Arduino wattmeter | Freddy | @ Jacky How so? |
| 22 maa 2016 21:21:12 | Arduino wattmeter | Jacky GOUSART | Goodnight Freddy, As such, your joule program may he operable to measures only a positive DC voltage and a DC also positive. In advance, thank you for your answer Jacky Gousart |
| 21 maa 2016 23:26:04 | Arduino wattmeter | Freddy | The purpose of this project was presenting a simple wattmeter so people can learn how wattmeters work. There was no intention to make a high performance instrument. Beside this, a Raspberry pi will not make the design of a higher performance meter easier. The analog section will be the most complex, and the smart stuff can be done by an ARM processor. |
| 20 maa 2016 23:38:35 | Arduino wattmeter | Wolfram Fischer | @Freddy: This project is sooo much nice, could you make it running on a Raspberry PI too? There would be nice features as Datalogging much more easier. Or did you do that already on a PI? |
| 20 maa 2016 22:42:18 | Arduino wattmeter | Freddy | Yes, you can use an external reference and alter the software as you mentioned. You have to change some hardware too: The voltage on A6 must be set at half the reference voltage. This is set with the voltage divider R6,R7. Because a byte is written in ADMUX, it also writes zeros. So ADLAR is made zero by writing 0xC4, binair:11000100. You can make any current range you like. But sensitive ranges are more difficult due to leakage and bias currents. |