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Top-down view of a matte black circuit board, 100mm by 18mm, featuring gold copper wiring, a long black battery, an ESP32-S3-WROOM-1 chip, several smaller chips, and a circular vibration motor.

Top-down view of a matte black circuit board, 100mm by 18mm, featuring gold copper wiring, a long black battery, an ESP32-S3-WROOM-1 chip, several smaller chips, and a circular vibration motor.

A professional engineering layout of a smart dog collar’s internal spine, 100mm x 18mm. The entire circuit board is matte obsidian black flexible polyimide. The layout is strictly linear and staggered to stay under 5mm thick: Left (0-40mm): A long, flat rectangular 1000mAh battery in a black protective foil wrap. Center (40-65mm): The ESP32-S3-WROOM-1 AI chip, featuring a black metallic shield and gold-etched antenna. Right (65-85mm): A cluster of three tiny black surface-mount chips (MPU-6050, TP4054, and the MAX30102 sensor with a dark red lens). Far Right (85-100mm): A small, flat circular black 'pancake' vibration motor. The wiring traces connecting the parts are polished gold copper, standing out sharply against the all-black board. Underneath the battery, a thin black and copper wireless charging coil is visible. The lighting is cinematic and moody, highlighting the gold-on-black contrast. White background, top-down technical view." Mehr sehen