Both APC220 and Ethernet on a Mega 1280

I posted this on "Project Guidance" but got no responses. I realized this might be the proper forum.

I have multiple Arduinos with sensors in various locations, communicating with APC220 RF modules. I want to connect Pachtube to all of them. My plan is to use a mega 1280 with a

http://www.ebay.com/itm/New-SainSmart-Sensor-Shield-V5-4-Arduino-APC220-Bluetooth-Analog-Module-Servo-/260928323943?pt=BI_Electrical_Equipment_Tools&hash=item3cc08a4167'

to connect the APC 220 and collect data from my sensors and a

http://www.ebay.com/itm/W5100-Ethernet-Shield-for-Arduino-Laterest-Version-micro-SD-Card-PoE-Ready-00930-/110819574126?pt=LH_DefaultDomain_0&hash=item19cd5c816e

to connect the W5100 and thus to my router. What I am wondering is if you can make either shield easily communicate with serial 2 instead of serial 1 so they are not trying to talk on the same port with both shields, and if so, how? I have not received either shield yet but suspect this might be an issue. Jim

There is something not quite right about that ebay picture and the description.
it states :

Flash Memory 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM 2 KB (ATmega328)
EEPROM 1 KB (ATmega328)

but there is NO second chip on that Ethernet PCB

What I am wondering is if you can make either shield easily communicate with serial 2 instead of serial 1 so they are not trying to talk on the same port with both shields, and if so, how? I have not received either shield yet but suspect this might be an issue.

The Ethernet shield does not use serial at all, so this is NOT going to be an issue. It uses the SPI pins (via the 6 pin ICSP header on the bottom of the ethernet shield/top of the Mega).

PaulS:

What I am wondering is if you can make either shield easily communicate with serial 2 instead of serial 1 so they are not trying to talk on the same port with both shields, and if so, how? I have not received either shield yet but suspect this might be an issue.

The Ethernet shield does not use serial at all, so this is NOT going to be an issue. It uses the SPI pins (via the 6 pin ICSP header on the bottom of the ethernet shield/top of the Mega).

Thanks PaulS, this is great, this makes my project doable.

Jim