Following the advent of the high-precision photoelectric heart rate sensor VC9S, the company continued to make great breakthroughs in the measurable range of skin color depth. Now, the scheme of continuous heart rate measurement for 15-level dark skin color VC7—— is officially released-based on VC8201 low-power continuous heart rate chip, measuring 15-level dark skin color with 120μA, responding to the "Belt and Road Initiative" and helping China to develop overseas markets in Asia, Africa and Latin America.

(VC7 scheme test for volunteers with skin color depths of 2R15, 3R15 and 4R15 respectively)