New kit – not fully working?

[detour]

Hi, I just got the kit and assembled it yesterday. My soldering work seems to look good but I’m not getting it to work. I’m testing using an LED/resistor connected to a couple different outputs on it. I notice that when I first power up the Arduino board the LED comes on and stays on, even though the example code is running to have it blink. So at least I know it is getting power through the shield. The LED on the Arduino is blinking, just not the one attached through the shield. Any thoughts on how to troubleshoot?

[Michael]

I assume you installed the EZ-Expander library. What kind of Arduino are you using?

Can you post your code?

[Michael]

I assume you installed the EZ-Expander library. What kind of Arduino are you using?

Can you post your code?

[detour]

Yes, I have the library installed. I first tried with a BareConductive Touchboard and then with a Leonardo. Same results. Here’s the code:

#include <EZExpander.h>

// Create an EZExpander object
EZExpander expander = EZExpander();

void setup() {
// put your setup code here, to run once:

}

void loop() {

for(int i=20;i<=35;i++) {
expander.digitalWrite(i, HIGH);
}
delay(1000);
for(int i=20;i<=35;i++) {
expander.digitalWrite(i, LOW);
}
delay(1000);
}

[Michael]

Oh, I’m sorry about that. This is a very old product and only works with AVR based Arduino boards like the Duemilanove and the Uno. Back when I made this product in 2009, there were no Arduino boards that were not based on an AVR microcontroller. I need to make this clear in the documentation, and I think I owe you a refund since this constraint was not clear.

[Michael]

I just quickly added support for Leonardo on a branch that you can try. I tested this and it works.

https://github.com/nootropicdesign/ez-expander/tree/leonardo-support

[detour]

Boom! Thank you, working perfectly now.

[Author]

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