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Study thread · IoT
Anyone else seeing garbage on UART right after flash on this board? Baud 115200, wiring triple-checked.
Yep—swap TX/RX once, then hard reset. If still messy, paste your `Serial.begin` line + a 2s boot log.
That fixed it — swapped the wires. Thanks, logging now looks clean.
Chat snippet
Mentor · firmware
I listened to your boot sequence—do these in order: 1) Init NVS before WiFi. 2) Don’t call MQTT until WiFi.status() is STATION_GOT_IP. 3) If you reuse clientId, append a random suffix after deep sleep. Ping me when you’ve tried (2)—if it still hangs, we’ll trace LwIP.
Mentor reply
Showcase · weekend build
Posted v2 of the weather station — solar + LoRa. README still rough; please review when you can. repo/…/weather-lora
Project discussion
Illustrative previews with anonymized names. Real groups follow this pattern every week.
A snapshot of weekly activity — what you can expect when you join.
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Typical week: firmware debugging, deployment questions, and lab discussions — often with multiple replies before lunch.
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Common threads: README reviews with actionable feedback, PCB troubleshooting with shared scope images.
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