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Comment 191 ... 200
| date | article | author | comment |
| 19 okt 2016 20:56:21 | Arduino wattmeter | Freddy | I have difficulties to understand your writings. I think you want to test power supplies. Am I right? What do you mean by "stone resistors", load resistors probably? And what is your question? |
| 19 okt 2016 00:32:53 | Arduino wattmeter | Sercan Yavuz | Yes , LT1001 . I will try again. Thanks for the help. I hope I will succeed. I have different values (50 ohms, 100 ohms, etc.) using stone resistance of 100 watts, 200 watts, 300 watts, which I do try to measure the output power device. best regards. |
| 18 okt 2016 00:53:59 | Arduino wattmeter | Freddy | The LTC1001 does not exist, do you mean the LT1001? If so, then the spects for the current measurement will be less. Wat do you mean by "I see no value"? Even zero is a value, or is the display completely blank and doesn't show any text? The range is 50V, 5A as you could read in the text and the caption of figure 2. As a result of this the maximum measurable power will be 250 watts. |
| 16 okt 2016 00:26:11 | Arduino wattmeter | Sercan Yavuz | Hello there, I SercaN from Turkey. First of all thank you for your work. I tried, but I could not find some material here. LTC1050-CN8 response, I bought LTC1001-CN8. * 10 MQ as opposed to 1% VISHAY DALE WSL3637R0100FE, I got the same OMH resistance. now I installed circuit. I've tested with 80 watt bulb, I see no value. What is the measuring range with this circuit. The maximum number of watts, volt-ampere-measure? Thank you in advance for your answers. |
| 04 okt 2016 22:48:27 | Multimeters - measurement deviation | Freddy | It depends on your goals. In general a multimeter has smaller tolerances than a oscilloscope. So, if you need to measure a parameter with close tollerances you need an multimeter. But if don't trust your multimeter with complex waveforms, it becomes a little more complicated: If your measurement doesn't require high accuracy, you can use an oscilloscope with math functions right away. But if a high accuracy is required, the scope should be callibrated prior against a accurate multimeter using a stable DC-voltage. |
| 04 okt 2016 21:47:44 | Multimeters - measurement deviation | analog9080 | Hi, Would you recommend using a scope to make measurements using the math function ? thanks analog9080 |
| 02 okt 2016 08:09:33 | Arduino wattmeter | BSEE TUP Manila 03 | Yup, top line is blank and bottom line is black. hmmm so it means LCD brand does matter? I will try to use shorter wires first. thanks Freddy :) |
| 30 sep 2016 11:15:59 | Arduino wattmeter | Freddy | You mean that the top line is blank and the whole bottom line is black. This is an indication that the display isn't initiated. It could be caused by faulty connections or long wires. Another probebly cause is a deviation in the communication standard. In that case you coud try another display brand or type. |
| 30 sep 2016 08:10:09 | Arduino wattmeter | BSEE TUP Manila 03 | Thanks Freddy. I'll try it in my 4x20 LCD as soon as I fix my current LCD problem. Regarding with the block of characters, sorry I don't know how to explain it but the LCD only shows a line of blocks in the 2nd row of my 2x16 LCD, the bottom part. Instead of a text, it shows a block of characters. |
| 29 sep 2016 22:33:47 | Arduino wattmeter | Freddy | What do you mean by "block of character"? At the beginning of the code you can set the number of lines that the display has. At the line : byte paramPointers[4] = {0,7,13,18}; // Parameter pointer for each display line You can set the initial parameters that show up at start up. The numbers refer to the parameters in the line below. |