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This updates the minimal supported version of CMake to 3.16, which in turn enables us to use more CMake features and have a cleaner build system. This is the version that provides most new features and also the one we use in our latest docker image for CI.
Roaming Example
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example demonstrate a roaming example using 11k and 11v APIs.
How to use example
Before project configuration and build, be sure to set the correct chip target using idf.py set-target <chip_name>.
Hardware Required
- A development board with ESP32/ESP32-S2/ESP32-C3 SoC (e.g., ESP32-DevKitC, ESP-WROVER-KIT, etc.)
- A USB cable for Power supply and programming
Build and Flash
Build the project and flash it to the board, then run the monitor tool to view the serial output:
Run idf.py -p PORT flash monitor to build, flash and monitor the project.
(To exit the serial monitor, type Ctrl-].)
See the Getting Started Guide for all the steps to configure and use the ESP-IDF to build projects.
- ESP-IDF Getting Started Guide on ESP32
- ESP-IDF Getting Started Guide on ESP32-S2
- ESP-IDF Getting Started Guide on ESP32-C3
Example Output
All the logs are taken after debug enabled:
Beacon request:
I (11125) wpa: scan issued at time=7579442263
I (11125) wpa: BSS: Add new id 1 BSSID b6:fb:e4:4d:6e:22 SSID 'ESPTest' chan 1
I (11135) wpa: BSS: Add new id 2 BSSID d6:fb:e4:4d:6e:22 SSID 'ESPDedicated' chan 1
I (11165) wpa: BSS: Add new id 3 BSSID c6:fb:e4:4d:6e:22 SSID 'ESPGuestNetwork' chan 1
I (11185) wpa: BSS: Add new id 4 BSSID b4:fb:e4:4d:6e:22 SSID 'ESPIndia' chan 1
I (11245) wpa: BSS: Add new id 5 BSSID b8:27:eb:3b:4a:59 SSID 'wpa2_enterprise' chan 6
I (11365) wpa: BSS: Add new id 6 BSSID 38:94:ed:34:07:66 SSID 'Nighthawk' chan 6
I (11365) wpa: BSS: Add new id 7 BSSID 10:da:43:dc:99:20 SSID 'NETGEAR40' chan 6
I (12435) wpa: BSS: Add new id 8 BSSID c6:fb:e4:4d:7c:89 SSID 'ESPGuestNetwork' chan 11
I (12445) wpa: BSS: Add new id 9 BSSID d6:fb:e4:4d:7c:89 SSID 'ESPDedicated' chan 11
I (12455) wpa: BSS: Add new id 10 BSSID b6:fb:e4:4d:7c:89 SSID 'ESPTest' chan 11
I (12485) wpa: BSS: Add new id 11 BSSID b4:fb:e4:4d:7c:89 SSID 'ESPIndia' chan 11
I (12825) wpa: scan done received
I (12845) wpa: action frame sent
I (12845) wpa: action frame sent
Sta's moving from one AP to another on BTM request:
I (379479) wpa: WNM: RX action 7 from 50:3e:aa:26:35:42
I (379479) wpa: WNM: BSS Transition Management Request: dialog_token=1 request_mode=0x1 disassoc_timer=0 validity_interval=1
I (379489) wpa: WNM: Neighbor report tag 52
I (379499) wpa: WNM: Subelement id=3 len=1
I (379499) wpa: WNM: BSS Transition Candidate List
I (379509) wpa: 0: b4:e6:2d:eb:1d:76 info=0x0 op_class=81 chan=1 phy=7 pref=255
I (379519) wpa: WNM: Candidate list valid for 102 ms
I (379519) wpa: WNM: Scan only for a specific BSSID since there is only a single candidate b4:e6:2d:eb:1d:76
I (379539) wpa: scan issued at time=9979439869
I (379539) wpa: BSS: Add new id 12 BSSID b4:e6:2d:eb:1d:76 SSID 'roaming_test123' chan 6
I (381979) wpa: scan done received
I (381979) wpa: WNM: Process scan results for BSS Transition Management
I (381979) wpa: WNM: Found an acceptable preferred transition candidate BSS b4:e6:2d:eb:1d:76 (RSSI -7)
I (381989) wpa: WNM: Transition to BSS b4:e6:2d:eb:1d:76 based on BSS Transition Management Request after_new_scan=1)
I (381999) wpa: WNM: Sending successful BSS Transition Management Response
I (382009) wpa: WNM: Send BSS Transition Management Response to 50:3e:aa:26:35:42 dialog_token=1 status=0 reason=0 delay=0
I (382019) wpa: action frame sent
I (382029) wpa: WNM: Issuing connect
I (382029) wifi:state: run -> init (0)
I (382029) wifi:pm stop, total sleep time: 102136757 us / 109258805 us
I (382039) wifi:new:<6,0>, old:<6,0>, ap:<255,255>, sta:<6,0>, prof:1
I (382769) wifi:new:<6,1>, old:<6,0>, ap:<255,255>, sta:<6,1>, prof:1
I (384689) wifi:state: init -> auth (b0)
I (384699) wifi:state: auth -> assoc (0)
I (384709) wifi:state: assoc -> run (10)
I (384729) wifi:connected with roaming_test123, aid = 1, channel 6, 40U, bssid = b4:e6:2d:eb:1d:76
I (384729) wifi:security: WPA2-PSK, phy: bgn, rssi: -7
I (384729) wifi:pm start, type: 1
I (384789) wifi:AP's beacon interval = 102400 us, DTIM period = 2
I (385609) esp_netif_handlers: sta ip: 192.168.4.2, mask: 255.255.255.0, gw: 192.168.4.1
Troubleshooting
For any technical queries, please open an issue on GitHub. We will get back to you soon.