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

geniusified December 1, 2021, 5:23pm 14

Get an HM-10 or AT-09. The use BLE and I currently have one module connected to my iPhone

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