All Questions
11
questions
0
votes
1
answer
29
views
RMS current measurements using Arduino uno [closed]
I'm working on an energy monitor using Arduino uno board. I'm using the open energy monitor library to measure RMS current. The current is measured using a CT. While observing the current measured by ...
1
vote
0
answers
50
views
Piezo cantilever energy harvester: how to mesure such small power?
I am currently designing a piezo energy harvester and I would like to modify the resonating frequency to maximize the energy recovered(for exemple by changing the center of mass of the cantilever). My ...
0
votes
1
answer
77
views
Interfacing Arduino for variable power supply
I'm a mechanical engineering student with no knowledge on Arduino microcontroller. I am currently working on a project of using Artificial Neural Network in a hybrid solar heating system. The hybrid ...
- 1
2
votes
1
answer
478
views
ATM90E32 total energy reading
I'm developing a simple power meter using the ATM90E32 from Microchip. For now, I can read all values: frequency, power factor, voltages, apparent power, etc.
Now the issue is with the energy, I need ...
0
votes
2
answers
1k
views
How does programming code provide power to electronic circuits? [closed]
I've been thinking about a question and haven't been able to find an answer. The question is that:
For instance, an Arduino has a 5V output pin to feed any electronic component. When you code ...
- 1
1
vote
0
answers
1k
views
CT (current Transformer protection)
I try to read some value from CT. Everything is alright but sometimes I read some really high value on my arduino pin.
I was looking some information about the CT protection. People talked about diode ...
- 11
0
votes
1
answer
849
views
Measure current of multiple loads with one sensor?
I have been doing some research for my project which requires to measure power consumption of 8 different loads. For that I plan to measure current in each line and multiply that with the voltage of ...
- 222
0
votes
2
answers
1k
views
Using a microcontroller+BLE (Bluetooth Low Energy) +Servo with one battery source
I am currently working on a project where I was looking for a microcontroller that is capable of BLE (Bluetooth Low Energy) which determines a servo's position.
Using an Arduino the project works well ...
- 125
7
votes
1
answer
3k
views
Logging measurements from an analog Gas Meter
I want to capture a gasmeter counter to log the gas consumption in my database.
Problem: till now I did not find a way to read the meter.
I tried a sensitive hall sensor that could react on the ...
- 101
3
votes
2
answers
3k
views
Arduino: How can one control a 2-wire DC motor with PWM?
I want to control the speed of a two-wire DC motor using PWM. I already managed to control a 4-wire motor, but now I need to use a two-wire motor.
I would connect it to the Arduino directly, but the ...
- 245
4
votes
1
answer
1k
views
How calculate three phase kilowatt hour from time sampled data of voltage and current of each phase
My problem is I want to calculate three phase kilo watt hour from time sampled data of current and voltages.
My doubts
1) How can I calculate the kilowatt hour from time sampled data? Is it any ...
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