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I'm dealing with an application in which I need to upload sketches remotely to an arduino UNO board. I successufully managed to upload sketches using an HC-06 bluetooth adapter. The only problem is that I am forced to manually press the reset button once the bluetooth link is established. Is there a way to automatically reset the arduino, in a software or hardware way, so that it will be able to accept and install the incoming and sketch? Would it be enough to activate a digital pin connected to the reset at the right timing prior the upload process starts?

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Use a BJT/FET.

For a NPN, connect RST to COLLECTOR, a digital pin in series with a 220 ohm (or whatever’s appropriate) resistor to BASE, and EMITTER to GND.

Just bring the digital pin HIGH to reset your arduino.

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Here's a instructable on how to reset the arduino with software

Instructables link

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