Design Of A Vitiligo Home Phototherapy Using Narrow Band Ultraviolet-B (NB-UVB) Based On Arduino Uno

Vitiligo is one of the skin diseases where there a disorder in pigmentation (skin color disorder), which characterized by presence macula hypopigmentation (a condition that causes part to become lighter than surrounding color) caused loss melanocyte function special cell found under epidermis functions produce pigments/melanin) chronically and progressively from epidermis. This disease if left untreated can spread other parts body. Phototherapy method help reduce spotting on body using NB-UVB rays. therapy should be carried out an ongoing basis. To contact with others during Covid-19 pandemic vitiligo protocol, author designed Home device. The made this device lamps HC-SR04 sensors detect exposure distance 3 cm. radiation dose starts 150 mJ/cm2 – 3000 mJ/cm2. measured irradiation obtained 2.6 mW/cm2 then converted formula get how long time was. level 1 (58 seconds) 22 (1085 seconds). In accuracy at 58th second, 540th second 1085th 99.99%. For value cm 99.82%, 2 99.96%, 99.33%, 5 99.944%.