Add support for Xteink X4 Pro (SSD1677/UC8179/UC8279, auto-detected) - #43
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Add support for Xteink X4 Pro (SSD1677/UC8179/UC8279, auto-detected)#43clackups wants to merge 2 commits into
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Adds the Xteink X4 Pro e-reader (ESP32-S3, 800x480 SPI e-paper, GT911 touch, CW2017 fuel gauge, dual-channel front-light, three buttons, SDMMC SD). The panel ships with one of three controllers depending on manufacturing run; a new boot-time probe in the new display_xteink_epd.cpp backend identifies which one is present (SSD1677, UC8179, or UC8279) and drives it accordingly, so a single firmware image works across runs. Register sequences, timing and the controller probe are ported from the FreeInk SDK (github.com/Free-Ink/freeink-sdk, MIT licensed), which reverse-engineered the OEM firmware. Only the black/white differential-refresh path is implemented; grayscale is out of scope, matching every other e-paper backend in this codebase. Also adds a CW2017 fuel-gauge backend to components/battery/ and a new xteink_x4_pro board header, Kconfig entries, CMake preset and sdkconfig defaults. This board has been added without on-hardware testing; see HARDWARE.md for the caveat and the touch-orientation dial-in note. Closes #40 Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015WWGnt5dAsEsAJPw7tYxTj
Combines Xteink X4 Pro support with main's Waveshare ESP32-S3-Touch-LCD-7 support: merges the derived-feature-flag tables and CMakePresets board list in AGENTS.md, keeps both boards' Kconfig defaults side by side, and ORs together the two boards' shared-I2C-bus #if conditions in main.cpp. Both xteink_x4_pro and waveshare_touch_lcd_7 presets build cleanly after the merge. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EvLCxY7Bk3XHvGQa6FKyoe
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Adds the Xteink X4 Pro e-reader (ESP32-S3, 800x480 SPI e-paper, GT911 touch, CW2017 fuel gauge, dual-channel front-light, three buttons, SDMMC SD). The panel ships with one of three controllers depending on manufacturing run; a new boot-time probe in the new display_xteink_epd.cpp backend identifies which one is present (SSD1677, UC8179, or UC8279) and drives it accordingly, so a single firmware image works across runs.
Register sequences, timing and the controller probe are ported from the FreeInk SDK (github.com/Free-Ink/freeink-sdk, MIT licensed), which reverse-engineered the OEM firmware. Only the black/white differential-refresh path is implemented; grayscale is out of scope, matching every other e-paper backend in this codebase.
Also adds a CW2017 fuel-gauge backend to components/battery/ and a new xteink_x4_pro board header, Kconfig entries, CMake preset and sdkconfig defaults.
This board has been added without on-hardware testing; see HARDWARE.md for the caveat and the touch-orientation dial-in note.
Closes #40
Claude-Session: https://claude.ai/code/session_015WWGnt5dAsEsAJPw7tYxTj