How to connect ACS712 to a microcontroller

[SevenZero]

We need to first connect the ACS712 current sensor properly to an analogue input pin. The value read from the sensor is proportional to current measured on the sensing terminals.

Pin diagram

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Internal diagram

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More information from the manufacturer of this chip.
http://www.allegromicro.com/Products/Cu ... CS712.aspx

You can buy this sensor in Sri Lanka from TRONIC.LK.