I cannot get Bluetooth to work on SIM800. AT+GSV command gives following response: SIMCOM_Ltd. SIMCOM_SIM800 Rev: 1308B02SIM800M64_BT. Any AT command I type (eg AT_BTSTATUS=?) gives ERROR. What could be the problem?
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Regret the mistake. I tried AT+BTSTATUS? Got ERROR. Tried AT+BTPOWER=1, got ERROR. How do I enable BT? The user guide only gives AT commands and explanation, no troubleshooting guide. – A M M Mar 28 '16 at 11:30
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_Again_, the command is not for example `AT+BTSTATUS?`, but `AT+BTSTATUS=?`. Here, page 10: http://mt-system.ru/sites/default/files/documents/sim800_series_bluetooth_application_note_v1.04.pdf **read your documentation** – jbm Mar 28 '16 at 13:06
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Vote to close, as the user failed to read his documentation, resulting in typo-style mistakes. See answer and comments. – jbm Apr 03 '16 at 09:54
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From the SIM800 manual here[*], page4, it should be:
AT+BTSTATUS?
Not AT_BTSTATUS=?
You may want to have a look at:
https://en.wikibooks.org/wiki/Serial_Programming/Modems_and_AT_Commands#AT_Commands
...and of course read the manual for your module.
*: http://mt-system.ru/sites/default/files/simcom_sim800_series_bluetooth_application_guide_v1.01.pdf
jbm
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Bluetooth in SIM800 has to be enabled first in order to be available for use.
To power up the bluetooth radio, just enter:
AT+BTPOWER=1
MrBit
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