# Is it possible to replace a CC2500 with a CC2531?

I have a working Arduino->CC2500 configuration, and I'd like to know if it's possible to replace that with a CC2531 USB dongle. Does the CC2531 have the ability to form the correct packet structure while operating at the correct frequencies to viably replace the CC2500?

Having said all that, I'm going to interject my personal opinion and note that I absolutely despise the SoC versions of the CC chips. They use an industry-standard 8051 core design, but don't get your hopes up -- a lot of the tools and libraries force you to use IAR, which is the biggest waste of $5000 imaginable. I've found that the SoC versions of the radios usually aren't cheaper than a stand-alone CC-radio + general-purpose MCU. As an example, the USB-enabled PIC16F1454 could easily talk to a CC2500, and it's on the order of$0.80-\$1.00 each.