A Hidden Protest 2020.02.10 Wearable device, 2020Adafruit feather 32u4, masks, buttons, servo motors, 3D printed parts, wires.After doctor Li — the whistleblower’s death, many Chinese young people and activists were in a rage. They wore masks with the protest words above, and walk on the street. But in China, that would cause a very serious result. Thus, I designed this wearable device, which can help them make a safer protest.