SparkFun Electronics will be closed in observance of memorial day on Monday, May 29th. We will resume normal business hours on Tuesday, May 30th. Any orders placed after 2pm Mountain Time on Friday, May 26th will process and ship out on Tuesday, May 30th.


Member Since: February 21, 2010

Country: United Kingdom

  • Plugged the AVR stick in started logging straight away - 0 on both PB4 and PB3. Couple of resistors on PB4 started logging 2557 corresponding to 2.57 volts.
    However, the only way I can get PB3 to change from 0 is to put much too low value resistor to Vcc. PB3 appears to be sinking current??
    Is it configured as an output to drive the LED?

No public wish lists :(