Heltec Automation HTTM-SCB CapacitiveTouch Sensor Capacitance Switch Button Module With Blue Light
(as of Aug 16,2022 12:55:43 UTC – Details)
Operating voltage: + 2.7 ~ 6V
Two Mode choosen
manufacturer give more support for you
there is chromatic aberration for the blue color when take photos, in fact the color is baby blue, not brunet like the pictures.