ESP32 IoT Control Board Design
Budget: $250 – $750 USD
I need a custom control board built around the ESP32 for an upcoming IoT monitoring system. The hardware must accept four analog sensor inputs, provide a robust RS-485 port, drive a relay output, and convert 12 V down to 3.3 V with appropriate efficiency and protection (ESD clamps, reverse-polarity safeguards, etc.).
Your job covers the complete board cycle—from schematic capture and part selection through to a clean, fabrication-ready layout. I typically work in KiCad and Altium, so either environment is fine as long as the final package is consistent and well-documented.
Deliverables
• Complete schematics
• Optimised PCB layout (4-layer if you believe it is warranted)
• Gerbers, drill files, and pick-and-place data
• Detailed BOM with supplier links and alternates
• Any design notes or calculations that will help during review and production
To be considered, please point me to at least one previous ESP32 or comparable microcontroller board you have taken to production, highlight any industrial communication work (RS-485, Modbus, etc.), and give an honest estimate of turnaround time.
Once this hardware milestone is complete, I’m planning firmware development and future revisions, so a solid result here can turn into steady follow-on work.
Your job covers the complete board cycle—from schematic capture and part selection through to a clean, fabrication-ready layout. I typically work in KiCad and Altium, so either environment is fine as long as the final package is consistent and well-documented.
Deliverables
• Complete schematics
• Optimised PCB layout (4-layer if you believe it is warranted)
• Gerbers, drill files, and pick-and-place data
• Detailed BOM with supplier links and alternates
• Any design notes or calculations that will help during review and production
To be considered, please point me to at least one previous ESP32 or comparable microcontroller board you have taken to production, highlight any industrial communication work (RS-485, Modbus, etc.), and give an honest estimate of turnaround time.
Once this hardware milestone is complete, I’m planning firmware development and future revisions, so a solid result here can turn into steady follow-on work.