Remove LED PIN 13?

USB AVR Programmer and SPI interface. Adafruit's USBtinyISP.

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mattrupp
 
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Remove LED PIN 13?

Post by mattrupp »

I have built a bare Arduino board and have included an LED on the digital pin 13. I assumed that I would be able to have the LED in while programming with the USBtinyISP because there is an LED on a standard Arduino and I can use the USBtinyISP while that LED is in circuit. However, I can only program with the LED removed. What do I need to do differently so that I can keep the LED in circuit?

Thank you,

Matt

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adafruit_support_bill
 
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Re: Remove LED PIN 13?

Post by adafruit_support_bill »

Do you have the current-limited resistor in series with the led?

mattrupp
 
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Re: Remove LED PIN 13?

Post by mattrupp »

Yes. I have a 150 in series with it.
Basic Arduino circuit
Basic Arduino circuit
processor_detail.jpg (266.47 KiB) Viewed 1396 times

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adafruit_support_bill
 
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Re: Remove LED PIN 13?

Post by adafruit_support_bill »

I don't believe that is the value used in a standard Arduino. You might want to check the official schematics.

mattrupp
 
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Re: Remove LED PIN 13?

Post by mattrupp »

Thank you.

I changed it to a 1k.

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