Smart Air Filter PCB Design
Budget: $10 – $30 USD
I’m developing a battery-powered smart air-filter controller and need a turnkey PCB that I can send straight to fabrication. The board has to bring together an ESP32 development module, an MPU-6050 accel/gyro, a USB-C fast-charge circuit for a single-cell Li-ion pack, and a power MOSFET for driving the fan motor. Core functionality is air-quality monitoring; features such as filter-change alerts or app-based control can stay on the wish-list for later revisions.
Space inside the enclosure is tight, so component placement must follow a compact layout while still respecting RF clearance around the ESP32 antenna. The unit will be used both indoors and outdoors, so keep an eye on conformal-coating recommendations, connector selection, and creepage where humidity might be an issue.
Please base the schematic and layout on production-grade practices—four-layer if it helps with impedance, but I’ll let you decide. KiCad or Altium files are both fine; just note the version you use.
Deliverables
• Complete schematic and PCB layout files
• Production-ready Gerbers, drill files, pick-and-place, and stack-up drawing
• Detailed BOM with manufacturer part numbers and alternates
• Assembly/fabrication notes (USB-C routing tips, test-point map, recommended conformal coat)
• Optional: one assembled and tested prototype, costed separately
I’ll review the design against ESP32 reference guidelines and MPU-6050 layout notes, then release full sign-off. If you have questions about sensor placement or power-path sizing, feel free to flag them early so we lock everything down before the first spin.
Space inside the enclosure is tight, so component placement must follow a compact layout while still respecting RF clearance around the ESP32 antenna. The unit will be used both indoors and outdoors, so keep an eye on conformal-coating recommendations, connector selection, and creepage where humidity might be an issue.
Please base the schematic and layout on production-grade practices—four-layer if it helps with impedance, but I’ll let you decide. KiCad or Altium files are both fine; just note the version you use.
Deliverables
• Complete schematic and PCB layout files
• Production-ready Gerbers, drill files, pick-and-place, and stack-up drawing
• Detailed BOM with manufacturer part numbers and alternates
• Assembly/fabrication notes (USB-C routing tips, test-point map, recommended conformal coat)
• Optional: one assembled and tested prototype, costed separately
I’ll review the design against ESP32 reference guidelines and MPU-6050 layout notes, then release full sign-off. If you have questions about sensor placement or power-path sizing, feel free to flag them early so we lock everything down before the first spin.