mirror of https://github.com/arendst/Tasmota.git
106 lines
3.5 KiB
C
106 lines
3.5 KiB
C
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/* 2.9" Waveshare ePaper Driver Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include <string.h>
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#include "esp_log.h"
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#include "imagedata.h"
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#include "epaper-29-ws.h"
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#include "epaper_fonts.h"
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static const char *TAG = "ePaper Example";
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// Pin definition of the ePaper module
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#define MOSI_PIN 5
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#define MISO_PIN -1
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#define SCK_PIN 18
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#define BUSY_PIN 22
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#define DC_PIN 21
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#define RST_PIN 23
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#define CS_PIN 19
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// Color inverse. 1 or 0 = set or reset a bit if set a colored pixel
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#define IF_INVERT_COLOR 1
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void e_paper_task(void *pvParameter)
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{
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epaper_handle_t device = NULL;
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epaper_conf_t epaper_conf = {
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.busy_pin = BUSY_PIN,
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.cs_pin = CS_PIN,
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.dc_pin = DC_PIN,
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.miso_pin = MISO_PIN,
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.mosi_pin = MOSI_PIN,
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.reset_pin = RST_PIN,
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.sck_pin = SCK_PIN,
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.rst_active_level = 0,
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.busy_active_level = 1,
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.dc_lev_data = 1,
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.dc_lev_cmd = 0,
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.clk_freq_hz = 20 * 1000 * 1000,
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.spi_host = HSPI_HOST,
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.width = EPD_WIDTH,
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.height = EPD_HEIGHT,
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.color_inv = 1,
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};
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uint32_t cnt = 0;
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char hum_str[7];
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char tsens_str[7];
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while(1){
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ESP_LOGI(TAG, "Before ePaper driver init, heap: %d", esp_get_free_heap_size());
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device = iot_epaper_create(NULL, &epaper_conf);
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iot_epaper_set_rotate(device, E_PAPER_ROTATE_270);
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ESP_LOGI(TAG, "e-Paper Display Espressif logo");
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iot_epaper_display_frame(device, IMAGE_DATA); // display IMAGE_DATA
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vTaskDelay(5000 / portTICK_PERIOD_MS);
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ESP_LOGI(TAG, "e-Paper Display sample graphics");
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iot_epaper_clean_paint(device, UNCOLORED);
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iot_epaper_draw_string(device, 200, 0, "@espressif", &epaper_font_12, COLORED);
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iot_epaper_draw_string(device, 10, 10, "e-Paper Demo ", &epaper_font_16, COLORED);
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iot_epaper_draw_string(device, 15, 50, "Humidity", &epaper_font_16, COLORED);
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iot_epaper_draw_string(device, 15, 80, "Temperature", &epaper_font_16, COLORED);
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memset(hum_str, 0x00, sizeof(hum_str));
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memset(tsens_str, 0x00, sizeof(tsens_str));
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sprintf(hum_str, "%4d %%", (uint8_t) (esp_random() * 100.0 / UINT32_MAX));
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sprintf(tsens_str, "%4d C", (int8_t) (esp_random() * 100.0 / UINT32_MAX - 50));
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iot_epaper_draw_string(device, 170, 50, hum_str, &epaper_font_16, COLORED);
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iot_epaper_draw_string(device, 170, 80, tsens_str, &epaper_font_16, COLORED);
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iot_epaper_draw_horizontal_line(device, 10, 27, 140, COLORED);
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iot_epaper_draw_horizontal_line(device, 10, 73, 240, COLORED);
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iot_epaper_draw_vertical_line(device, 150, 43, 60, COLORED);
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iot_epaper_draw_rectangle(device, 10, 43, 250, 103, COLORED);
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iot_epaper_display_frame(device, NULL); // display internal frame buffer
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iot_epaper_delete(device, true);
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ESP_LOGI(TAG, "EPD Display update count: %d", cnt++);
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ESP_LOGI(TAG, "After ePaper driver delete, heap: %d", esp_get_free_heap_size());
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vTaskDelay(5000 / portTICK_PERIOD_MS);
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}
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}
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void app_main()
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{
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ESP_LOGI(TAG, "Starting example");
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xTaskCreate(&e_paper_task, "epaper_task", 4 * 1024, NULL, 5, NULL);
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}
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