Sample BOM for an ESP32 4-relay control board (Excel)
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Sample BOM for an ESP32 4-relay control board (Excel)

Sample BOM for an ESP32 4-relay control board: designators, values, packages, quantities per order, and a unit price column to fill in. Free download.

Downloadable files

  • bom-esp32-4-role.xlsx
    Excel, 19 component lines · 7 KB    Download

License CC BY 4.0 — free to use, credit “OctaX.one”. Demo the production version requires a free account to download.

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  • 19 component lines, 48 components per board: ESP32 module, 3,3 V regulator, USB programming circuit, 4 relays with transistors, diodes and indicator LEDs.
  • Enter the number of boards and supplier unit prices; the sheet calculates total quantities, amounts and component cost per board.

For reference only; check against the actual schematic before ordering. The relay contact side connected to 220 V mains must be wired by a qualified electrician.

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