WIFI Shield Hangs

OpenMV Boards
1

I am trying to get the WIFI shield to work with the H7 Plus. The examples cause the board to hang/freeze.

connect_1.py hangs at wlan.connect(SSID, KEY)
scan_1.py hangs at wlan.scan()

I confirmed using print statements that both programs never make it past those points. I think I waited around 10 minutes for each before pulling the plug.

I have upgraded the firmware: (19, 7, 6, 19, 6, 1, 1377184).

I did test continuity between the cam and the shield with a multi-meter.

I searched the forums and did find Newly bought Wifi Shield hanged, but I am new to this and do not know where to check for shorts.

In case it matters: OpenMV v4.6.20; MicroPython v1.24.62; OPENMV4P with STM32H743

Any tips to further troubleshoot would be appreciated!

2

The latest H7 Plus firmware with WiFi Shield version:

Firmware version: (19, 7, 6, 19, 6, 1, 1377184)

Works as expected. I can scan without any hangs.

Please try: Tools->Install Latest Dev Release.

Otherwise, please check your solder connections.

3

I appreciate your response. I tried the dev release and got the same result. To check the solder connections, I put the H7 on a breadboard, ran a program that set all the gpio pins to high, and then used a multi-meter to confirm voltage at all the gpio pins. I also used a multi-meter to check for shorts around all the pins. Anything else I can try? Is there a way to turn on additional logging?

gpio
gpio1134×2016 194 KB

Thank you!

4

Not sure what else to check. I just put the shield on the camera and it worked. If all pins are operational it could be the WiFi shield itself. I guess it’s a brand new shield?

5

I bought it March 27 of this year and this is my first attempt at using it. I have another H7 that I just got. Maybe I will solder the headers on and try the wifi shield with it.