why my HC-05 bluetooth module disconnected when I send command
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Hope this helps you
Explanation:
It seems that the motors are drawing much more current than you are supplying. You should connected two 9V batteries in parallel, and connect the +ve terminal of battery to Vin of arduino and -ve terminal to GND of arduino.
It seems that the motors are drawing much more current than you are supplying. You should connected two 9V batteries in parallel, and connect the +ve terminal of battery to Vin of arduino and -ve terminal to GND of arduino.Also, there are two power pins on an l29x IC. The logical power supply should be connected to 5V on arduino. But, the other power pin should be connected directly to the battery, so that it can draw as much current as required by the motors directly
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