i need help on how to build an interface unit to an already existing electricitymeter

[bonasah]

please i need help on how to build an already exist electricity meter using a microcontroller
i really need help on how to use the microcontroller and which type of microcontroller to use
thank you

 

[bonasah]

please i need help on how to build an already exist electricity meter using a microcontroller
i really need help on how to use the microcontroller and which type of microcontroller to use
thank you

 

[mneary]

Posting every seven minutes won't expedite your answer.

In your other thread you wanted it to look like a prepaid meter. Excuse my cynical mind but the only purpose I could think of involves fraud.

 

[HiTech]

The meters of that type in the USA have tamper-resistant measures on them to prevent fraud.

 

[RODALCO]

Build an opto led / infra red transistor which can read or scan the marks on the disc from the meter, through the meterglass.

Do not tamper with the meter which can incur a stiff penalty by the utility company !

The impulses can be counted and put into a counter or database.
The revs / kWh are usually marked on the meter nameplate.

eg 240 rev / kWh

 

[Nigel Goodwin]

Build an opto led / infra red transistor which can read or scan the marks on the disc from the meter, through the meterglass.

Bit tricky on my LCD electricity meter?

 

[Marks256]

Duct Tape a webcam to the glass. Then write some software to read it. Really easy.

 

[RODALCO]

The LCD meter may have a impulse LED from which you should be able to pick up an impulse with a bit of luck, otherwise put a private checkmeter in series with the POCO supply meter.

 

[Hero999]

You'd also need illumination, which could just be another LED that flashes on which you want to take the reading.