I want to build a dual mode module (V2.1 & V4 BLE)--SMD Bluetooth module

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DavidCyr2000

Joined Jan 8, 2017
12
I have been recommended HM-11 from other sources.
I would like to do the same thing (SMD module) but want to have a dual mode module (V2.1 & V4 BLE). I have looked at the dual mode HM-13 but cannot find a source for this module.
Also, is there any other recommendation given this post is 1.5 years old?
Thanks!


Mods Note:
Please don't hijack other member's thread, now you have your own.
This thread was split from Recommend a Bluetooth module for custom arduino based PCB?
 
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