Go Down

Topic: Have to push reset after powering UNO up to get program to run... (Read 513 times) previous topic - next topic

5errated

Jun 30, 2012, 06:53 am Last Edit: Jun 30, 2012, 06:58 am by 5errated Reason: 1
What am I missing here?  Every time I power the arduino up, it just sits there and I have to manually push the reset button to get my sketch to run.

I tried adding a 10k resistor between RX and ground, and that doesn't work.

5errated

Ok for grins, I moved the resistor to between ground and the reset pin and it starts the sketch upon powering up now.  Weird.

Is this an OK fix for a permanent project, or will this have bad side effects?

Nick Gammon

There is a resistor between reset and +5V, so you have slightly diminished its affect. Possibly it was resetting too quickly.
Please post technical questions on the forum, not by personal message. Thanks!

More info:
http://www.gammon.com.au/electronics

Go Up
 


Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

Arduino
via Egeo 16
Torino, 10131
Italy