i using hc-05 bluetooth module have wired using voltage divider rx pin well. when establishing connection android phone or pc successfully, both on pc , on phone. when try test send , receive using serial monitor on pc , bluetooth terminal on phone not see displayed when connected arduino mega. when test on arduino uno, seems work fine , displays serial data. not sure issue is, can me out identifying problem? input voltage not enough? 5v output arduino shared amongst 2 other sensors , motor driver circuit. or arduino mega rx , tx pins faulty? way of testing these?
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i not sure issue is,your code, probably.
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or arduino mega rx , tx pins faulty?which ones? if referring pins 0 , 1, ones used upload sketches, , write serial monitor. unlikely faulty.
Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > HC-05 trouble sending and receiving on Arduino Mega
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