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ESP-026: land the ESP-IDF display spike (verified on glass) - #138
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Port the KitchenSync Touch 1.47" LCD to the ESP-IDF firmware. Increment 1 proves the
LovyanGFX Panel_ST7789 + Bus_SPI config comes up under ESP-IDF's SPI on the S3.
- ks_display.{h,cpp}: LGFX config copied verbatim from ktouch_display.cpp; backlight on
ledc (was analogWrite); render task draws a test frame. No touch / live data yet.
- idf_component.yml: LovyanGFX managed component, esp32s3 target only.
- Kconfig: KS_TOUCH_DISPLAY (depends on IDF_TARGET_ESP32S3, default n).
- CMakeLists: always compile ks_display.cpp (no-op stub when flag off).
- ks_main.c: one guarded call + include; P4 build unaffected.
Spike — not for merge until verified on glass.
sdkconfig.defaults.esp32s3 auto-loads only for the S3 target, so a fresh 'idf.py set-target esp32s3' comes up display-enabled and P4 is untouched.
…stry component LovyanGFX is not in the Espressif component registry (the ^1.1.16 registry pin failed to resolve). Pull it from GitHub pinned to tag 1.2.21 — the exact version the Arduino firmware already ships (THIRD_PARTY.md, BSD-2-Clause). Gated to the S3 target.
Split the two-statement brightness clamp onto separate lines. ESP-IDF builds with -Werror=misleading-indentation (Arduino did not). Full esp32s3 build now green.
…G console
- ks_display.cpp: AXS5106L over i2c_master (SDA42/SCL41, 0x63) + GPIO47 reset,
reusing the host-tested axs5106l.c parser (added to CMake SRCS by path). Taps are
echoed on screen ('TAP x,y') and to the log.
- sdkconfig.defaults.esp32s3: route the console to USB-Serial-JTAG (the Arduino
build's hwcdc). ESP-IDF's UART default left the USB port dark after boot, so the
cu.usbmodem port vanished and esptool could not auto-reset. Now it persists +
serial logs work. (Builds green; hardware verification pending the next flash.)
Portrait-native AXS5106L coords -> setRotation(7) landscape: sx=319-raw_y, sy=171-raw_x (verified against a corner tap). Draws a dot at the mapped point.
…d-mode gotcha Rebased the display spike onto master (clean), rebuilt esp32s3, reflashed the Waveshare S3-Touch — panel shows "ESP-IDF DISPLAY OK". Landing the spike. Note the board latches DOWNLOAD mode on every host-issued USB reset (esptool/monitor/DTR), so a fresh flash boots dark and silent until a physical power-cycle — looks like a crash, isn't one. Claude-Session: https://claude.ai/code/session_01F7YsQgso3KNpeXbP5vNVj6
Skeyelab
enabled auto-merge (squash)
July 17, 2026 04:29
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Lands
spike/esp-026-display-esp-idf(rebased onto master, clean). LovyanGFX + AXS5106Lon ESP-IDF, verified on the Waveshare S3-Touch ("ESP-IDF DISPLAY OK"). Clears ESP-026's
stated gate: the display — the migration's only real hardware unknown — is proven on ESP-IDF.
ks_display.{h,cpp},CONFIG_KS_TOUCH_DISPLAY(S3-only), LovyanGFX pinned git dep,sdkconfig.defaults.esp32s3, one guarded call inks_main.c.KitchenSyncTouchuntouched.https://claude.ai/code/session_01F7YsQgso3KNpeXbP5vNVj6