Contact person: Business Client

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Location: Dhaka, Bangladesh

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I’m midway through an IoT build that combines a main Arduino board with several Wemos D1 Mini modules. The goal is to get reliable, secure two-way communication between the nodes, tidy up the wiring, and streamline the sketches so the whole system feels production-ready rather than proof-of-concept.

Where I’m stuck is a mix of hardware troubleshooting and firmware refinement—simple things such as pin assignments that clash when multiple sensors share a bus, and bigger items like keeping the Wi-Fi connection stable after deep sleep cycles. I’d like to share my current schematic, the messy but functional .ino files, and a list of symptoms; from there, I need clear guidance and corrected code that I can flash and test immediately.

Deliverables I’ll ask for are:
• Cleaned, fully commented Arduino/Wemos sketches that compile in the current IDE
• Any additional library recommendations or settings tweaks I should apply
• A concise wiring diagram (PDF or Fritzing) matching the revised code

A bonus would be suggestions on OTA updates and over-the-air logging, but the must-have is simply a rock-solid, testable build that I can replicate on identical boards. If this sounds like your wheelhouse, let’s get started." (client-provided description)