Excuse me this how to distinguish between the green pin ACS712 module is the cathode

CodePudding user response:

1. Check on the back of the PCB board to VCC or GND artwork
2. The GND is measured with a multimeter and green interface which one pin conduction

CodePudding user response:

The cathode is 12 feet, 34 feet, see green, which connect with 12 feet

CodePudding user response:

To ask, do you want to distinguish

CodePudding user response:

Pro, this is used to measure dc or ac?

CodePudding user response:

The

references 4 floor of the summer snow crystal reply:

, this is used to measure dc or ac?

Should be can

CodePudding user response:

Use this to measure current is directly series in the circuit? The small module measured current is converted into analog voltage, single chip microcomputer in sampling the analog voltage, through the ADC is converted into digital signal, do you need the ACS712 module programming? Know, please tell the younger brother!

CodePudding user response:

Pay attention to the current does not exceed the scope of the module out pins of the output voltage, using ADC acquisition, the module of voltage and current is a linear function, calculate the corresponding relationship between conversion out current can be measured

CodePudding user response:

12 the pin to the anode, 34 pin sister answered negative

CodePudding user response:

The

refer to the original poster bottles of evil! Reply:

could you tell me how to distinguish the ACS712 module the green pin is negative

The original poster is not a treasure to use this powerful tool? The above search ACS712, a material, the seller writes the usage details inside,

Green terminal regardless of is negative, but the hall magnetic field points are negative,
When current OUT half of the output VCC, namely VCC/2;
When positive current is detected, the OUT output is greater than the VCC/2;
When the negative current is detected, the OUT output is less than the VCC/2;

In terms of each current increment of voltage depends on A range, each range voltage increment is different, to know how it is A treasure,