+BLESCANDONE can be sent many times at the end of a scan

[JHedgesBartec]

Answers checklist

• I have read the documentation ESP-AT Programming Guide and the issue is not addressed there.
• I have used the latest released firmware or have updated my ESP-AT branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

AT+GMR

Using Master compiled with additional non BLE commands

AT+GMR
AT+GMR
AT version:3.5.0.0-dev(s-0f91d98 - ESP32 - Jul 19 2024 02:59:04)
SDK version:v5.0.6-dirty
compile time(5d1f30af):Aug  5 2024 12:39:27
Bin version:v4.0.0.0(WROOM-32)

OK

Also seen on release/v3.2.0.0

ESP-AT Firmware Source

GitHub master or release/v3.2.0.0 branches.
Custom compiled with added user commands not related to BLE.

Hardware Information

ESP-WROOM-32

Power Supply used

USB

What is the expected behavior?

Only send a single +BLESCANDONE response message

What is the actual behavior?

Can send many +BLESCANDONE response messages

Probability of recurrence

Issue is intermittent, though seen most when using time limited scans (1 or 2 seconds) in a busy environment.

AT+SYSRAM?

AT+SYSRAM?
AT+SYSRAM?
+SYSRAM:63648,60284
OK

Steps to reproduce

Initialise BLE as Client, set parameters to use a passive scan and scan for devices for 1 or 2 seconds in a busy environment

AT command port output

AT+BLEINIT=1
AT+BLEINIT=1

OK
AT+BLESCAN=1,2
AT+BLESCAN=1,2

OK
+BLESCAN:"5d:4f:00:87:9d:75",-53,<data_removed>,,1
+BLESCAN:"15:ac:30:a3:73:cb",-67,<data_removed>,,1
+BLESCAN:"61:c6:7f:a3:fb:cc",-69,<data_removed>,,1
+BLESCAN:"41:0e:b1:c2:8a:f8",-80,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-80,<data_removed>,,1
+BLESCAN:"60:ff:4a:52:96:cd",-92,<data_removed>,,1
+BLESCAN:"41:4a:f6:05:6e:05",-85,<data_removed>,,1
+BLESCAN:"5b:77:8a:e6:b5:7c",-84,<data_removed>,,1
+BLESCAN:"54:44:a3:08:0e:85",-91,<data_removed>,,0
+BLESCAN:"15:ac:30:a3:73:cb",-67,<data_removed>,,1
+BLESCAN:"5d:4f:00:87:9d:75",-53,<data_removed>,,1
+BLESCAN:"6b:77:3c:6e:16:36",-61,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-82,<data_removed>,,1
+BLESCAN:"40:68:f3:91:86:7d",-78,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-70,<data_removed>,,1
+BLESCAN:"51:e7:e8:b0:bc:c3",-75,<data_removed>,,1
+BLESCAN:"15:ac:30:a3:73:cb",-79,<data_removed>,,1
+BLESCAN:"41:0e:b1:c2:8a:f8",-87,<data_removed>,,1
+BLESCAN:"5d:4f:00:87:9d:75",-77,<data_removed>,,1
+BLESCAN:"5a:2d:ea:f5:7c:e2",-86,<data_removed>,,1
+BLESCAN:"08:0d:81:67:f7:b3",-83,<data_removed>,,1
+BLESCAN:"7d:06:6e:80:b9:8b",-83,<data_removed>,,1
+BLESCAN:"4b:84:b4:57:4d:2f",-61,<data_removed>,,1
+BLESCAN:"19:25:5a:75:60:7d",-77,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-79,<data_removed>,,1
+BLESCAN:"60:ff:4a:52:96:cd",-92,<data_removed>,,1
+BLESCAN:"5d:4f:00:87:9d:75",-52,<data_removed>,,1
+BLESCAN:"15:ac:30:a3:73:cb",-67,<data_removed>,,1
+BLESCAN:"6b:77:3c:6e:16:36",-61,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-83,<data_removed>,,1
+BLESCAN:"9b:ca:b4:c4:e8:29",-78,<data_removed>,,0
+BLESCAN:"0b:a5:e7:ea:a5:ea",-70,<data_removed>,,1
+BLESCAN:"15:ac:30:a3:73:cb",-76,<data_removed>,,1
+BLESCAN:"5d:4f:00:87:9d:75",-76,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-82,<data_removed>,,1
+BLESCAN:"f3:d2:98:ae:1c:76",-86,<data_removed>,,1
+BLESCAN:"4b:84:b4:57:4d:2f",-60,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-88,<data_removed>,,1
+BLESCAN:"f9:64:8e:00:dd:62",-67,<data_removed>,,1
+BLESCAN:"54:ff:62:23:c2:f5",-89,<data_removed>,,1
+BLESCAN:"41:0e:b1:c2:8a:f8",-84,<data_removed>,,1
+BLESCAN:"15:ac:30:a3:73:cb",-67,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-81,<data_removed>,,1
+BLESCAN:"5d:4f:00:87:9d:75",-53,<data_removed>,,1
+BLESCAN:"40:68:f3:91:86:7d",-77,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-82,<data_removed>,,1
+BLESCAN:"15:ac:30:a3:73:cb",-78,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-71,<data_removed>,,1
+BLESCAN:"38:f0:c8:06:06:6b",-86,<data_removed>,,0
+BLESCAN:"40:68:f3:91:86:7d",-83,<data_removed>,,1
+BLESCAN:"71:a7:b4:63:11:45",-67,<data_removed>,,1
+BLESCAN:"71:a7:b4:63:11:45",-75,<data_removed>,,1
+BLESCAN:"64:fe:af:d2:8d:3d",-62,<data_removed>,,1
+BLESCAN:"5b:77:8a:e6:b5:7c",-88,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-72,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-93,<data_removed>,,1
+BLESCAN:"08:0d:81:67:f7:b3",-76,<data_removed>,,1
+BLESCAN:"22:6d:19:55:fd:4a",-71,<data_removed>,,1
+BLESCAN:"4b:84:b4:57:4d:2f",-67,<data_removed>,,1
+BLESCAN:"7d:06:6e:80:b9:8b",-76,<data_removed>,,1
+BLESCAN:"28:92:ab:3b:a1:9b",-86,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-91,<data_removed>,,1
+BLESCAN:"19:25:5a:75:60:7d",-71,<data_removed>,,1
+BLESCAN:"53:97:b3:36:00:18",-86,<data_removed>,,1
+BLESCAN:"40:68:f3:91:86:7d",-74,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-89,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-78,<data_removed>,,1
+BLESCAN:"51:e7:e8:b0:bc:c3",-80,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-83,<data_removed>,,1
+BLESCAN:"41:0e:b1:c2:8a:f8",-94,<data_removed>,,1
+BLESCAN:"53:97:b3:36:00:18",-84,<data_removed>,,1
+BLESCAN:"40:68:f3:91:86:7d",-79,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-77,<data_removed>,,1
+BLESCAN:"60:ff:4a:52:96:cd",-93,<data_removed>,,1
+BLESCAN:"61:c6:7f:a3:fb:cc",-69,<data_removed>,,1
+BLESCAN:"5d:4f:00:87:9d:75",-53,<data_removed>,,1
+BLESCAN:"28:92:ab:3b:a1:9b",-87,<data_removed>,,1
+BLESCAN:"74:93:47:c2:5f:5b",-94,<data_removed>,,1
+BLESCAN:"71:a7:b4:63:11:45",-67,<data_removed>,,1
+BLESCAN:"4b:84:b4:57:4d:2f",-67,<data_removed>,,1
+BLESCAN:"22:6d:19:55:fd:4a",-71,<data_removed>,,1
+BLESCAN:"19:25:5a:75:60:7d",-72,<data_removed>,,1
+BLESCAN:"51:e7:e8:b0:bc:c3",-75,<data_removed>,,1
+BLESCAN:"7d:06:6e:80:b9:8b",-80,<data_removed>,,1
+BLESCAN:"40:68:f3:91:86:7d",-79,<data_removed>,,1
+BLESCAN:"19:25:5a:75:60:7d",-77,<data_removed>,,1
+BLESCAN:"7d:06:6e:80:b9:8b",-83,<data_removed>,,1
+BLESCAN:"0b:a5:e7:ea:a5:ea",-75,<data_removed>,,1
+BLESCAN:"15:ac:30:a3:73:cb",-67,<data_removed>,,1
+BLESCAN:"71:a7:b4:63:11:45",-68,<data_removed>,,1
+BLESCAN:"67:d9:6d:75:9f:ba",-77,<data_removed>,,1
+BLESCAN:"49:a7:4f:45:e8:aa",-87,<data_removed>,,1
+BLESCAN:"5d:4f:00:87:9d:75",-53,<data_removed>,,1
+BLESCAN:"08:0d:81:67:f7:b3",-74,<data_removed>,,1
+BLESCAN:"f2:2c:a7:2c:43:03",-78,<data_removed>,,1
+BLESCAN:"6b:77:3c:6e:16:36",-61,<data_removed>,,1
+BLESCAN:"22:6d:19:55:fd:4a",-71,<data_removed>,,1
+BLESCAN:"4b:84:b4:57:4d:2f",-66,<data_removed>,,1
+BLESCAN:"54:44:a3:08:0e:85",-90,<data_removed>,,0
+BLESCAN:"19:25:5a:75:60:7d",-71,<data_removed>,,1
+BLESCAN:"7d:06:6e:80:b9:8b",-87,<data_removed>,,1
+BLESCAN:"19:25:5a:75:60:7d",-78,<data_removed>,,1
+BLESCAN:"54:44:a3:08:0e:85",-90,<data_removed>,,0
+BLESCAN:"40:68:f3:91:86:7d",-75,<data_removed>,,1
+BLESCAN:"15:ac:30:a3:73:cb",-67,<data_removed>,,1
+BLESCAN:"61:c6:7f:a3:fb:cc",-68,<data_removed>,,1
+BLESCAN:"5d:4f:00:87:9d:75",-53,<data_removed>,,1
+BLESCAN:"08:0d:81:67:f7:b3",-74,<data_removed>,,1
+BLESCAN:"22:6d:19:55:fd:4a",-71,<data_removed>,,1
+BLESCAN:"4b:84:b4:57:4d:2f",-60,<data_removed>,,1
+BLESCAN:"4b:84:b4:57:4d:2f",-61,<data_removed>,,1
+BLESCAN:"19:25:5a:75:60:7d",-77,<data_removed>,,1
+BLESCAN:"40:68:f3:91:86:7d",-78,<data_removed>,,1
+BLESCAN:"51:e7:e8:b0:bc:c3",-77,<data_removed>,,1
+BLESCAN:"54:ff:62:23:c2:f5",-86,<data_removed>,,1
+BLESCAN:"60:ff:4a:52:96:cd",-95,<data_removed>,,1
+BLESCAN:"d4:ca:6e:b7:2f:d7",-87,<data_removed>,,0
+BLESCANDONE
+BLESCANDONE
+BLESCANDONE
+BLESCANDONE
+BLESCANDONE

AT log port output

Log output silenced to save memory - so no output.

More Information.

No response

[ustccw]

@Luxin812 PTAL

[Luxin812]

@JHedgesBartec We will resolve this issue as soon as possible. Thank you very much for your feedback.