I will design miniature wearable electronics 4 layer pcb and firmware

Turning your wearable idea into a tiny, reliable, low-power product? I design compact PCBs and write the firmware so your device is ready to prototype and manufacture.

WHAT YOU GET

• Miniature 4-layer PCB layout (small round, square or custom shapes)
• Low-power circuit design for coin-cell or LiPo battery life
• Sensor integration: heart rate (PPG), IMU, temperature, GPS and more
• BLE firmware (nRF52, ESP32, STM32) with a mobile app connection
• Battery charging and protection, with USB-C or wireless charging
• Complete files: schematic, Gerber, BOM, assembly files and 3D STEP model
• DFM review for small-batch production

IDEAL FOR: Smart rings, watches, fitness bands, medical and health trackers, pet and kids trackers, safety badges and startup MVPs.

Share your size limit, battery size, sensors and features, and I'll suggest the best chipset and layout. Message me first so we can confirm everything!