69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/* Simple firmware for a ESP32 displaying a static image on an EPaper Screen */
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#include "esp_heap_caps.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_log.h"
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#include "dragon.h"
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#include "epd_highlevel.h"
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#include "epdiy.h"
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#include "board/tps65185.h"
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EpdiyHighlevelState hl;
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// choose the default demo board depending on the architecture
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#ifdef CONFIG_IDF_TARGET_ESP32
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#define DEMO_BOARD epd_board_v6
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#elif defined(CONFIG_IDF_TARGET_ESP32S3)
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#define DEMO_BOARD epd_board_v7
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#endif
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int temperature = 25;
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void draw_dragon() {
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EpdRect dragon_area = { .x = 0, .y = 0, .width = dragon_width, .height = dragon_height };
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epd_poweron();
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epd_fullclear(&hl, temperature);
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epd_copy_to_framebuffer(dragon_area, dragon_data, epd_hl_get_framebuffer(&hl));
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enum EpdDrawError _err = epd_hl_update_screen(&hl, MODE_GC16, temperature);
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epd_poweroff();
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}
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void idf_loop() {
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// make a full black | white print to force epdiy to send the update
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epd_fill_rect(epd_full_screen(), 0, epd_hl_get_framebuffer(&hl));
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epd_hl_update_screen(&hl, MODE_DU, temperature);
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vTaskDelay(pdMS_TO_TICKS(1));
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epd_fill_rect(epd_full_screen(), 255, epd_hl_get_framebuffer(&hl));
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epd_hl_update_screen(&hl, MODE_DU, temperature);
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}
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void idf_setup() {
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epd_init(&DEMO_BOARD, &ED097TC2, EPD_LUT_64K);
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hl = epd_hl_init(&epdiy_NULL);
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// starts the board in kickback more
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tps_vcom_kickback();
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// display starts to pass BLACK to WHITE but doing nothing+
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// dince the NULL waveform is full of 0 "Do nothing for each pixel"
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idf_loop();
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// start measure and set ACQ bit:
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tps_vcom_kickback_start();
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int isrdy = 1;
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int kickback_volt = 0;
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while (kickback_volt == 0) {
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idf_loop();
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isrdy++;
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kickback_volt = tps_vcom_kickback_rdy();
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}
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ESP_LOGI("vcom", "readings are of %d mV. It was ready in %d refreshes", kickback_volt, isrdy);
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vTaskDelay(pdMS_TO_TICKS(2000));
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esp_restart();
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}
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#ifndef ARDUINO_ARCH_ESP32
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void app_main() {
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idf_setup();
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}
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#endif
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