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General • PI pico W and breadboard problem

Hi,
I noticed some strange behavior with the Wi-Fi connection when the Pi Pico W (RP2040) is on a breadboard. Sometimes it can only connect to Wi-Fi 1 out of 10 tries. My code includes unlimited reconnects, so it won’t fail after one or three failed connections. The signal strength is between -55 to -61 dBm, about 2 meters from the Wi-Fi router, so it shouldn’t be due to signal interference (i.e., being too close to the Wi-Fi).

Power is probably not the issue. I’ve tried different USB ports, several wall chargers, and even a lab power supply.

When the Pico is off the breadboard, there’s no issue with the connection. I also placed it on a different project PCB, and it connects without any problems.

However, when I place it on a clean breadboard (without wires) or with wires for 7 SEG dipslay, it connects on lets say 1 out of 10 power cycles. Unfortunately, I don’t have another Pi Pico W, so I can’t say for sure if it’s a hardware problem.

Are you familiar with this issue, or could it be something specific to this particular Pico?

Statistics: Posted by Auxilius — Sat Apr 05, 2025 11:19 am — Replies 3 — Views 80



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