Description:
- 【PANEL AND CONTROLLER IN ONE KIT】 NOTHING ELSE TO SOURCE: a 7.5 inch 800 x 480 black, white and red e-paper panel with a matching ESP32 board that already carries the 24-pin FPC connector. No adapter, no level shifting, no wiring guesswork. Connect micro USB, upload the sample sketch and the panel draws. - 【BLACK, WHITE AND RED ON PAPER】 REFLECTS LIGHT INSTEAD OF EMITTING IT: no backlight, no glare and a viewing angle that does not wash out. The image stays sharp in direct sunlight where an LCD becomes unreadable, and nothing flickers once the screen has settled. - 【HOLDS THE IMAGE WITH POWER OFF】 DRAWS CURRENT ONLY WHILE REFRESHING: e-paper is bistable, so an image written to the panel stays there indefinitely with the power disconnected. Combined with ESP32 deep sleep, a battery powered sign or dashboard runs for weeks between updates. - 【RUNS UNTETHERED】 BATTERY CONNECTOR, CHARGER AND POWER SWITCH ON BOARD: a JST connector takes a 3.7V protected LiPo or Li-ion cell, charged over micro USB while the board runs, with an onboard voltage sensor so your firmware can show the cell level. Eight tactile buttons drive menus and page turns, and a slide switch cuts power completely. No battery included. - 【BUILT FOR STATIC CONTENT】 A FULL REFRESH TAKES ABOUT 20 SECONDS: three-colour e-paper cycles the black, white and red layers to place each pixel, so the screen flashes several times before the image settles. That suits signage, shelf labels, meeting room displays, weather stations, calendars and status boards, and rules out video, animation or live readouts.