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4-DCMotor Driver? Answered

please
help me to connect 4-DC-Motor-Driver-Module to arduino
thank you

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steveastrouk

1 year ago

Erm. WHAT motor driver ? Where did it come from ? What chips does it use ? Have you got mating connectors for the white signal lines.

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rickharrissteveastrouk

Answer 1 year ago

The 2 chips are L293D's so the cct will look something like the illustration below (click for full size) cct from http://www.picaxe.com/ interface manual.

You should be able to work out or find out with a meter which connection goes where.

Each L293D will drive 2 DC motors BUT current is limited to 600 mA for each output.

L293D.JPG
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icengrickharris

Answer 1 year ago

While the 293D is designed for 4v to 36volts, that driver PCB looks like a 12V design..

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rickharrisiceng

Answer 1 year ago

It can be the control voltage can be separated from the drive voltage. My diagram shows them both at 5 volts.

http://www.ti.com/lit/ds/symlink/l293.pdf

the data sheet shows that pin 8 can be connected to 4.5 to 36 volts for drive voltage.

the only real issue with the IC is the 600 mA current for each output. A lot of even small DC motors draw more under start up and stall the chip.

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icengrickharris

Answer 1 year ago

Yes, they the motors do draw more at start and at load.

The reasoning for 12v board is the profusion of 16v DC capacitors

I see on the PCB

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Downunder35m

1 year ago

I would thin wires if you don't have the right plugs and breakout wires.