Difference in Gold and Silver versions of SparkFun Bluetooth Modem - BlueSMiRF

Wireless & IoT Bluetooth
1

What is the difference between these 2 items please?

SparkFun Bluetooth Modem - BlueSMiRF Silver WRL-12577

SparkFun Bluetooth Modem - BlueSMiRF Gold WRL-12582

Thank you

Geoff

2

Now I’m finding the difference.

https://learn.sparkfun.com/tutorials/us … esmirf/all

3

Glad you figured it out!

For the curious:

The “Silver” and “Gold” designations of these modules indicates whether they use an RN-42 Bluetooth module or an RN-41. The Silvers use the RN-42, and the Gold uses an RN-41. The difference between those two modules? Range and transmit power. The RN-41 is a class 1 Bluetooth module, so it can communicate at up to 100 meters, but it also transmits at a higher power (meaning shorter battery life). The RN-42 is class 2, which limits the transmit range to about 10 meters.