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Battery (firmware + server, disabled by default): new battery.c reads a 2x200k voltage divider via ADC oneshot with curve-fitting calibration (the ESP32-C6's scheme), maps through a piecewise LiPo discharge curve, and restores the pin to button duty after each read -- the settled XIAO ESP32-C6 design shares the back button's GPIO0/A0, time-shared per wake. Skipped entirely when on mains (a 2x100k VBUS divider into a spare digital pin -- the 5V pin is dead on battery power, so presence = mains, where the charging voltage would read misleadingly full) or when the reading is implausible. The manage overlay gains a battery region (static outline glyph + "NN%", below the manage QR, all menu levels), and the device POSTs to the new /frame/battery endpoint after a successful fetch; the server stores percent + as-of timestamp, exposed via /api/queue and shown in the web UI. FRAME_BATTERY_ADC_GPIO / FRAME_VBUS_SENSE_GPIO default to -1 (fully inert on the dev board); compile-verified both disabled and enabled, hardware bring-up deferred until the ordered XIAO + batteries arrive. Orientation (server-side only): new config setting + web UI dropdown (landscape / portrait / landscape_flipped / portrait_flipped). Photos are composed/cropped at the logical hanging shape (portrait crops at 480x800, so face-aware crops match how the frame actually hangs), then rotated losslessly into the panel's native 800x480 byte layout after dithering -- the device never knows. Face-label anchors are transformed through the same rotation (logical_to_native()) so they stay attached to faces on rotated frames. Known documented limitation: the on-device manage overlay still renders in native orientation, so it appears sideways on a portrait-hung frame (QRs scan at any rotation; text reads sideways).
77 lines
3.0 KiB
C
77 lines
3.0 KiB
C
#include <stdbool.h>
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#include "esp_event.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#include "esp_netif.h"
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#include "wifi_provisioning.h"
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#include "frame_client.h"
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#include "next_button.h"
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#include "back_button.h"
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#include "combo_button.h"
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#include "battery.h"
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static const char *TAG = "main";
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void app_main(void)
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{
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/* Redirected/invalid captive-portal traffic generates a lot of noise
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* at the default log level. */
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esp_log_level_set("httpd_uri", ESP_LOG_ERROR);
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esp_log_level_set("httpd_txrx", ESP_LOG_ERROR);
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esp_log_level_set("httpd_parse", ESP_LOG_ERROR);
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ESP_ERROR_CHECK(esp_netif_init());
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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esp_err_t nvs_err = nvs_flash_init();
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if (nvs_err == ESP_ERR_NVS_NO_FREE_PAGES || nvs_err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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nvs_err = nvs_flash_init();
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}
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ESP_ERROR_CHECK(nvs_err);
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/* Arms all three buttons as deep-sleep wakeup sources (so holding one
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* wakes the device promptly, not just during its brief awake
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* windows), then checks them -- covers both "held while asleep, just
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* woke us up" and "held while powering on" the same way, since both
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* look identical from here: the pin is just low right now. */
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next_button_init();
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back_button_init();
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combo_button_init();
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bool next_pressed = next_button_check();
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bool back_pressed = back_button_check();
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/* Next takes priority over back if somehow both read pressed at once
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* (e.g. both held through a power-on) -- an arbitrary but
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* deterministic tie-break, not expected to matter in practice. */
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fetch_action_t action = next_pressed ? FETCH_ADVANCE : back_pressed ? FETCH_BACK : FETCH_NORMAL;
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/* Soft-resets or clears config + restarts internally for a medium/
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* long hold and never returns in those cases -- only returns here
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* for "not pressed" (false) or "quick press" (true, show the menu). */
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bool show_management_qr = combo_button_check();
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/* Must come after the button checks: the battery pin is (by design,
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* on the XIAO board) shared with a button, and the ADC read briefly
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* takes the pin over -- see battery.h. -1 = no reading (disabled,
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* on mains, or implausible). */
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int battery_percent = battery_read_percent();
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frame_config_t cfg;
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esp_err_t cfg_err = frame_config_load(&cfg);
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if (cfg_err == ESP_OK) {
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ESP_LOGI(TAG, "Found stored config for '%s', connecting to home WiFi", cfg.sta_ssid);
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if (frame_wifi_connect_sta(&cfg) == ESP_OK) {
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frame_client_run(&cfg, action, show_management_qr, battery_percent);
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return; /* frame_client_run currently never returns */
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}
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ESP_LOGW(TAG, "Could not connect to stored WiFi after %d attempts, falling back to provisioning",
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CONFIG_FRAME_STA_CONNECT_MAX_RETRIES);
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} else {
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ESP_LOGI(TAG, "No stored config found (%s), starting provisioning", esp_err_to_name(cfg_err));
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}
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wifi_provisioning_start();
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}
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