Questions tagged [meter]

100 questions
1
vote
0 answers

Perfmon - Refresh rate of power meter

I'm writing a tool to collect information about power consumption of notebooks. I need to measure the current power consumption, and I use Perfmon to do so. But I found a strange bug. Here is the typical graph of power consumption (this is "Power…
akarsakov
  • 2,134
  • 4
  • 21
  • 26
0
votes
0 answers

Serial Monitor Prints unreadable characters

I'm trying to read data from Makel M600 model meter with ESP32. I use RS485 and IEC 62056-21. I send command to get device identification but serial monitor prints unreadable characters. Here is the my full code: #include #include…
0
votes
0 answers

Modifying weight and dimension units from letters to full words on WooCommerce product descriptions on the frontend

I wish to change WooCommerce Weight text from letter "G" to "Grams" in products description front end. All so about dimensions from letter "M" to "Meters" WooCommerce dose anyone have any idea how to change that text in frond end ? I don't use any…
0
votes
0 answers

Noise_meter package flutter

I have problem with the noise_meter package. I added all of the permissions for the android and iOs devices as in the pub.dev but the example app is not working at all. I added print in to the onData function but it seems that app is unable to…
0
votes
1 answer

How to specify starting value of tag not from zero?

Suppose, I want to specify (highlight) the range of meter tag from 0.4 to 0.6 values. How can I do that? I want to do something like this: Meter with range
TIAS
  • 3
  • 2
0
votes
0 answers

Reading data from the optical port of the electricity meter

I am trying to read data from optical port of electricity meter. I connect the probe attached to the optical port of the meter to the computer via RS232. I am sending the initial data to the electricity meter as follows. The answer should be the ID…
0
votes
1 answer

HTML meter display value with unit

My code displays a meter with the value displayed: ex. Battery voltage 24 #########==== I would like to add the units too so it looks like this: Battery voltage 24 V #########==== How should I modify my code shown below? meter { …
user3635160
0
votes
1 answer

How to calculate percentile using System.Diagnostics.Metrics.Histogram

I am trying to create pxx metrics using .Net Meter API. Below is the sample code System.Diagnostics.Metrics.MeterListener listener = new System.Diagnostics.Metrics.MeterListener { InstrumentPublished = (instrument,…
Sourabh
  • 59
  • 1
  • 15
0
votes
0 answers

Why Do we need Isolated USB to TTL converter cable for communication between Desktop CPU and target?

We can use non-isolated USB to TTL cable in between battery operated devices, But when we are dealing with AC devices like communication between Desktop CPU and Electric meter(Embedded MCU), we need isolated USB to TTL converter. Any one please help…
0
votes
3 answers

Communicate with Kohler Meter in C#

I m trying to communicate with Kohler active meter. It s half duplex. I ve read all protocol. Kohler has own software to see the profiles. While it was reading the profiles, i tried to view how it is happening. Sending and recieving datas. Then i…
0
votes
3 answers

Trying to interpret returned data from energy meter

I'm trying to read a power meter, model Shark200 using Modbus RTU. I was already able to read it, but I couldn't interpret the returned data. How to interpret the date and value fields? Example of the returned data: 0; 2; 6144; 3840; 17239; -26413;…
João Soares
  • 49
  • 1
  • 12
0
votes
1 answer

How to create a meter whose value changes with change in value of range slider

I am beginner in HTML, CSS and JavaScript The meter I have to create . I got a task to create a speedometer whose value changes with the changes in range slider. I just want to know the basic idea of how to create this. Please help me
0
votes
0 answers

Modbus RTU meter DDS024MR

Last week I connected single-phase meter sdm120 to Raspberry pi. The code below worked find. However, when I try connecting to the DDS024MR meter now, it shows no communication at all. I tried changing ports, etc. What did I do wrong? please help…
marta
  • 1
  • 1
0
votes
2 answers

Display query in ABB HMI using software panel builder 600

I am using ABB HMI and programming it on panel builder 600. I have used meters to display angles and set the scale from -100 to +100. I have acheived success in displaying angles but the problem is the change in angle is very frequent and the needle…
Mar_60
  • 13
  • 3
0
votes
1 answer

How do I launch the Open Camera app to take a picture without user interaction?

I am trying to launch the Open Camera Android app to take a picture without user interaction for meter reading logging purposes. Plenty of examples on the web to do this using Android intents with user interaction (i.e. they have to press a button)…
VinceJS
  • 1,254
  • 3
  • 18
  • 38