Micro SD Breakout + RuggedCircuits YellowJacket

[rrowe629]

Having some challenges getting these two working togther as I want to store my web pages and do some data logging on the micro SD card. First, several things DO work. I can use the YellowJacket as a web server. I can run the SD example sketch with the Breakout connected to the YellowJacket. I'm aware that they cannot both use pin 10 for Chip Select and have successfully moved this to other pins for the Breakout, i.e. pin 8, pin 9.

When trying to use them together, though, the WiFi server hangs. I've done considerable testing and learned that seems to be a hardware issue. More specifically, the hang occurs when pin 11 is connected to the DI terminal on the Breakout. This will occur whether the SD library is present and whether or not an attempt is made to initialize the Breakout. If the connection is only made for a short period, the server will resume, but if it is connected for an extended period, the server will not recover.

At RuggedCircuit's suggestion, I grounded pin 11 on the YellowJacket through a 10K resistor to see if there was an issue with current drain on the YellowJacket - that did not affect the websever's ability to function.

Are there any known compatability issues with these products? Anything the symptoms above point to? Any other tests I can run? I'd really like to get these working together.

Thanks.

[adafruit]

please try the microSD breakout with a genuine arduino and the SD library examples and code - & let us know if those DONT work

[rrowe629]

Thanks, but I'm a bit new to this and I'm currently a single-arduino shop: the YellowJacket. Just to be clear the card and library work fine with the YellowJacket - as long as I don't initialize the WiFi on the YellowJacket. The problem is when I try to WiFi and SD at the same time.

Roger

[adafruit]

sounds like the microSD card breakout works fine then. You may want to ask the place you purchased the wifi module for assistance

[rrowe629]

Thanks for the suggestion, but I actually went to them first. I'm stuck in the no-man's-land of each product working fine independently, but not together. At this point, I just have to assume they are incompatible.