I will design low cost circuits for mass production

Building a consumer product where every cent of BOM matters? I design simple, reliable circuits for high-volume products where cost is the first requirement.

Examples:

• Plasma arc gas lighter: Li-ion charging, auto cut-off, overload and under-voltage protection. Electronics BOM under $0.30.
• Vegetable mini chopper: RS385 motor from a single 18650 cell. Electronics BOM under $0.25.
• High-power LED flashlight with powerbank: single 21700 cell, IP5306 charging and 5 V output, constant-current LED driver, Padauk MCU.

What I do:

• Circuit design around low-cost, easy-to-source parts
• Replace expensive parts without dropping the protections your product needs
• PCB layout aimed at low fabrication and assembly cost
• Firmware for low-cost 8-bit MCUs (Padauk, STM8, AVR)
• Review an existing design and cut its BOM

You receive:

• Schematic (PDF + source), PCB layout and Gerbers
• BOM with part numbers and unit prices at your volume

Please message me before ordering with what the product does, the battery, the features you need, your target BOM cost and expected quantity.