HC05 Connectivity Problems
Hello, i have a HC05 bluetooth module and whenever i'm trying to connect (on an Android) instead of a password field nothing shows up and then it doesn't connects and shows up at earlier connections. On an iOS device the HC05 doesn't even show up.
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Unknown User•5mo ago
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If you're using an HC-05 with a 5V board, you need to do something to deal with the voltage difference between the 3.3V HC-05 and the 5V board. What board are you using?
I've heard HC-05s use a bluetooth protocol that apple devices don't support, but I can't back that up with anything right now
True, an HC-05 is "BT Classic", which iOS doesn't support
I am using an Arduino Uno
the code and required wiring is shown here https://lastminuteengineers.com/hc05-bluetooth-arduino-tutorial/