HM-10 BLE Bluetooth module issues

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recently bought hm-10 ble bluetooth module , connected arduino uno this:

          state ->
          rxd    ->    tx
          txd    ->    rx
          gnd    ->    gnd
          vcc    ->    5v
          en      ->

then tried connect 2 different android smartphones (both supporting ble). both smartphones failed pair hm-10 module. 1 of smartphones connect using specific android app. other smartphone failed connect using same app.

quote from: briler on jan 09, 2017, 08:09 pm
both smartphones failed pair hm-10 module. 1 of smartphones connect using specific android app.
others have had grief hm-10, nonsense. happened, , android app?

your connections correct, idea use 1k/2k voltage divider in arduino's tx line


Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > HM-10 BLE Bluetooth module issues


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