Hermann Björgvin HaraldssonandClaude Opus 4.7
97a5443601
Full hardware swap from Panlee SC01 Plus (480×320 IPS) to Waveshare 2.16" square AMOLED (480×480, CO5300 + CST9220 + AXP2101 + QMI8658). Library stack moves to Arduino_GFX, SensorLib, XPowersLib on the pioarduino platform 55.03.38-1 (Arduino Core 3.x). UI: - 4 screens (splash, usage, controller, bluetooth) with 3-button physical navigation: GPIO 0 = prev, AXP PKEY = cycle, GPIO 18 = next. - IMU-driven 90° auto-rotation. CO5300 can't rotate via MADCTL, so flush callback does CPU strip-rotation in PARTIAL render mode. Rotation transitions use AMOLED brightness flash (instant black → redraw → ramp). - Battery indicator (Lucide icons) in upper-right, RGB565A8 alpha so it blends over the splash animations. - USB plugged/unplugged auto-switches between Usage and Controller screens (suppressed while on splash). - Fonts and icons re-scaled ~1.9× for the higher-DPI panel; 20px margins to clear rounded corners. Splash: - 13 × 20×20 pixel-art creature animations sourced from claudepix.vercel.app via tools/scrape_claudepix.js (scraper handles both PRESET creature-engine and standalone FRAMES+PAL formats). tools/convert_to_c.js emits firmware/src/splash_animations.h. Attribution preserved in README and the generated header. Tooling: - tools/png_to_lvgl.js converts alpha PNGs to LVGL RGB565A8 (planar layout, with --tint to colorize Lucide black-on-transparent sources). - tools/scrape_claudepix.js, tools/convert_to_c.js for the splash pipeline. Docs: - New worktree CLAUDE.md with hardware pin map, file inventory, build commands, and the 8 critical gotchas (CO5300 rotation, OPI PSRAM, pioarduino requirement, LVGL 9 font patching, centralized touch read, even-aligned flush regions, touch swap/mirror values, RGB565A8 layout). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
#include "imu.h"
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#include "display_cfg.h"
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#include <Arduino.h>
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// Poll and hysteresis timing
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#define IMU_POLL_MS 100 // read accel at ~10 Hz
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#define STABLE_TIME_MS 300 // orientation must be stable this long before rotating
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#define TILT_THRESHOLD 0.5f // ~30 degrees from axis (sin(30) ~ 0.5)
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static uint8_t current_rotation = 0;
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static uint8_t candidate_rotation = 0;
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static uint32_t candidate_since = 0;
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static uint32_t last_poll_ms = 0;
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static bool imu_ok = false;
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// Determine target rotation from accelerometer gravity vector.
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// Returns 0-3 or 255 if ambiguous (e.g. face-up/face-down).
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static uint8_t accel_to_rotation(float ax, float ay) {
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float abs_ax = fabsf(ax);
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float abs_ay = fabsf(ay);
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if (abs_ax < TILT_THRESHOLD && abs_ay < TILT_THRESHOLD) {
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return 255; // ambiguous, keep current
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}
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if (abs_ay > abs_ax) {
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return (ay > 0) ? 3 : 1;
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} else {
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return (ax > 0) ? 0 : 2;
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}
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}
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void imu_init(void) {
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if (!imu.begin(Wire, QMI8658_L_SLAVE_ADDRESS, IIC_SDA, IIC_SCL)) {
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Serial.println("QMI8658 init failed");
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return;
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}
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Serial.println("QMI8658 init OK");
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imu.configAccelerometer(
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SensorQMI8658::ACC_RANGE_4G,
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SensorQMI8658::ACC_ODR_LOWPOWER_21Hz,
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SensorQMI8658::LPF_MODE_3);
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imu.enableAccelerometer();
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imu_ok = true;
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}
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void imu_tick(void) {
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if (!imu_ok) return;
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uint32_t now = millis();
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if (now - last_poll_ms < IMU_POLL_MS) return;
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last_poll_ms = now;
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float ax, ay, az;
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if (!imu.getAccelerometer(ax, ay, az)) return;
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uint8_t target = accel_to_rotation(ax, ay);
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if (target == 255 || target == current_rotation) {
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candidate_rotation = current_rotation;
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return;
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}
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if (target != candidate_rotation) {
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candidate_rotation = target;
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candidate_since = now;
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} else if (now - candidate_since >= STABLE_TIME_MS) {
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current_rotation = target;
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Serial.printf("Rotation: %d\n", current_rotation);
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}
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}
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uint8_t imu_get_rotation(void) {
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return current_rotation;
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}
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void imu_set_rotation(uint8_t r) {
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current_rotation = r % 4;
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Serial.printf("Rotation: %d (manual)\n", current_rotation);
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}
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