I want to start playing with bluetooth connectivity. Are bluetooth modules backwards compatible, i.e. Can the HC-06, HC-05, etc... talk with older iOS devices (Bluetooth 2.1) or would specific modules be needed to communicate with older generation bluetooth devices? Thanks!

Bluetooth module for old iPad connectivity

hc-05 December 2, 2021, 9:47am 20

hi and thanks for the info.

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