Closed
Description
Board
Heltec WiFi Kit 32
Device Description
plain module on breadboard, powered by USB
Hardware Configuration
nothing connected
Version
v3.0.1
IDE Name
Arduino IDE 2.3.2
Operating System
Windows 10
Flash frequency
240 MHz
PSRAM enabled
no
Upload speed
921600
Description
ESP32 WiFiScan example returns "no networks found".
I expect it returns at least 2.4 GHz WiFi networks at my location.
Sketch
Examples - WiFi - WiFiScan (unchanged)Debug Message
=========== Before Setup Start ===========
Chip Info:
------------------------------------------
Model : ESP32
Package : D0WD-Q6
Revision : 100
Cores : 2
Frequency : 240 MHz
Embedded Flash : No
Embedded PSRAM : No
2.4GHz WiFi : Yes
Classic BT : Yes
BT Low Energy : Yes
IEEE 802.15.4 : No
------------------------------------------
INTERNAL Memory Info:
------------------------------------------
Total Size : 345956 B ( 337.8 KB)
Free Bytes : 315680 B ( 308.3 KB)
Allocated Bytes : 23212 B ( 22.7 KB)
Minimum Free Bytes: 310344 B ( 303.1 KB)
Largest Free Block: 110580 B ( 108.0 KB)
------------------------------------------
Flash Info:
------------------------------------------
Chip Size : 4194304 B (4 MB)
Block Size : 65536 B ( 64.0 KB)
Sector Size : 4096 B ( 4.0 KB)
Page Size : 256 B ( 0.2 KB)
Bus Speed : 80 MHz
Bus Mode : DIO
------------------------------------------
Partitions Info:
------------------------------------------
nvs : addr: 0x00009000, size: 20.0 KB, type: DATA, subtype: NVS
otadata : addr: 0x0000E000, size: 8.0 KB, type: DATA, subtype: OTA
app0 : addr: 0x00010000, size: 1280.0 KB, type: APP, subtype: OTA_0
app1 : addr: 0x00150000, size: 1280.0 KB, type: APP, subtype: OTA_1
spiffs : addr: 0x00290000, size: 1408.0 KB, type: DATA, subtype: SPIFFS
coredump : addr: 0x003F0000, size: 64.0 KB, type: DATA, subtype: COREDUMP
------------------------------------------
Software Info:
------------------------------------------
Compile Date/Time : Jun 14 2024 21:40:34
Compile Host OS : windows
ESP-IDF Version : v5.1.4-51-g442a798083-dirty
Arduino Version : 3.0.1
------------------------------------------
Board Info:
------------------------------------------
Arduino Board : HELTEC_WIFI_KIT_32
Arduino Variant : heltec_wifi_kit_32
Arduino FQBN : esp32:esp32:heltec_wifi_kit_32:UploadSpeed=921600,CPUFreq=240,DebugLevel=debug,PSRAM=disabled,EraseFlash=none
============ Before Setup End ============
[ 604][W][STA.cpp:533] disconnect(): STA already disconnected.
Setup done
=========== After Setup Start ============
INTERNAL Memory Info:
------------------------------------------
Total Size : 345956 B ( 337.8 KB)
Free Bytes : 268616 B ( 262.3 KB)
Allocated Bytes : 67716 B ( 66.1 KB)
Minimum Free Bytes: 267388 B ( 261.1 KB)
Largest Free Block: 110580 B ( 108.0 KB)
------------------------------------------
GPIO Info:
------------------------------------------
GPIO : BUS_TYPE[bus/unit][chan]
--------------------------------------
1 : UART_TX[0]
3 : UART_RX[0]
============ After Setup End =============
Scan start
Scan done
no networks found
Scan start
Scan done
no networks found
Other Steps to Reproduce
I tried v2.0.17 with same ESP32 board, and the WiFiScan example can find networks.
I tried v3.0.1 with an ESP32-C3 board, and the WiFiScan example can find networks.
I have checked existing issues, online documentation and the Troubleshooting Guide
- I confirm I have checked existing issues, online documentation and Troubleshooting guide.