This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | |||
bluetooth:notes_on_hc-05_module [2018/03/03 08:35] ko4bb |
bluetooth:notes_on_hc-05_module [2018/03/03 08:37] ko4bb |
||
---|---|---|---|
Line 10: | Line 10: | ||
- Hold pin 11 at any time after having applied power. If so, pin 11 must be held high until you are done with AT commands. In this case, the baud rate is the rate defined by command AT+UART | - Hold pin 11 at any time after having applied power. If so, pin 11 must be held high until you are done with AT commands. In this case, the baud rate is the rate defined by command AT+UART | ||
* There are many firmware versions, there may be very significant differences between the versions. | * There are many firmware versions, there may be very significant differences between the versions. | ||
- | - Some will not let you go to command mode, or will severely limit the kind of commands available. | + | - Some will not let you go to command mode, or will severely limit the kind of commands available. Stay away from modules sold as HC-06 as they are very limited and cost the same, but even some HC-05 have limitations. |
- If you can, make sure to buy modules that can be put in Master mode, they tend to have better firmware. | - If you can, make sure to buy modules that can be put in Master mode, they tend to have better firmware. | ||
* When you change a setting, it is automatically saved. Some settings take effect immediately, some wait until you reboot | * When you change a setting, it is automatically saved. Some settings take effect immediately, some wait until you reboot |