Guition 10.1 inch
The JC8012P4A1 in three revisions: 10.1 inch, 1280 × 800, with an ESP32-P4. The largest screen Tessera runs on.

| Tiles per page | 25 (5 × 5), lying down and standing up |
| Touch | Capacitive (GSL3680) |
| Backlight | Dims; standby and night mode |
| Pictures | Yes |
| Status | New; V2 and V3 experimental |
Which one do you have
- V3: the label on the board or the box says V3.
- V2: the rear label says V2, and the case number is 2628 or higher.
- The first revision has neither.
They look alike, but each needs its own firmware: pick the matching model under New screen. A V3 on the first firmware never gets past the bootloader; a V2 shows a washed-out picture with a coloured line. A screen that doesn't start can't update over Wi-Fi, so install the right one over USB.
Good to know
- Building the firmware yourself needs ESPHome 2026.8.0 or newer.
- A touch chip that stays dead after an update needs a full power cycle: unplug for a few seconds, battery included.
- The large glass fits tiles up to most of a page; see Tiles.