Arduino Forum

Forum 2005-2010 (read only) => Hardware => Bugs & Suggestions => Topic started by: awdsas on Aug 20, 2010, 07:33 pm

Title: Ethernet Shield automatic reset circuit
Post by: awdsas on Aug 20, 2010, 07:33 pm
Hi - I've designed a small and simple circuit (that plugs on the POWER connector so it doesn't require any soldering on the shield) that allows to reset the original Ethernet Shield (1st version) when powered from an external power source without interfering with the code upload functionalities.

(http://www.galmacci.com/arduino/ArduinoEthShldRESET-sch.gif)

(http://www.galmacci.com/arduino/ArduinoEthShldRESET-pcb.gif)

Note: resistor R1 is mounted vertical

Enjoy!

- Andrea