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Need Help!
I've been cracking my head for hours, and I couldn't come up with a solution.
PIC I am using is PIC16F877A
Alright, I'm supposed to receive a value from the ADC and convert it to its appropriate value and output it to an LCD.
Attached is the code I did... but the problem is the...
Simple Question
Alright, I have a plug (http://www.reuk.co.uk/OtherImages/13-amp-plug.jpg) where I wired L, N and E accordingly.
Then I have a wall socket (**broken link removed**) where I wired L, N and E accordingly as well.
What I did was I pluged in my plug into the wall socket to test...
acs712 program
Hi all.
I've built the circuit as attached, here is the rundown:
- Live current flows from IP+ through IP- of the ACS712.
- VOUT7 of the ACS712 sends Voltage (~5V max) based on a linear graph.
- PIC will perform calculation based on the linear graph and will send result to LCD...
PT is...?
And what I meant was, if you measure Voltage from the mains when connected to an appliance, no matter if you step it down or not, wont it always show 240V?
Hi.
Well.. alright, say I want to measure Voltage used by an appliance from the mains of 240V/50Hz.
Various methods where one of them include stepping down the voltage to about 5V and using the PIC to perform calculation and then display it using an external device.
My question is, if the...
pic 16f877a ad conveter sample
Hi, I have some questions on the ADC of a PIC.
I understand that the ADC converts an analog signal into a digital signal.
So lets say I have an input of 4V, how the ADC would convert it is that it would give a corresponding digital bit.
My question is, how do we...
Measurement Question
I see, that makes a lot of sense.
Now, how would you do a measurement with respect to the Live/Neutral/Earth of the mains and the appliance?
Or shall I phrase it like this:
Live, Neutral and Earth - how do they function?
How do they connect between mains and appliance?
a measurement question
Alright, lets say I want to measure an appliance getting it's power through a 240Vac mains.
My question is.. how does an appliance (lets say a cell phone charger) draw out the amount of current it needs?
What makes it not susceptible to the high voltage that is 240Vac...
My project is to build a digital watt meter, to measure the Voltage, Current, Power, etc. from an appliance connected.
My question is, is there a way I could measure voltage from a 240V/50Hz mains connecting to an appliance?
Please do not suggest Voltmeter, because the watt meter I'm building...
where to measure power factor
ADE7753: Single Phase Multifunction Energy Metering IC with di/dt Input (Serial-Port Interface)
What does a "di/dt" input mean?
how to measure power factor
I'm working on a Digital Wattmeter project, where the wattmeter is plugged to the mains, and an appliance is plugged to the wattmeter.
My question is, is there a way to measure Power Factor accurately?
I have heard of a Power Factor IC, which conveniently measures...
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