在Arduino编程中，理解和使用数据类型是关键步骤。其中，uint8_t、unit16_t和unit32_t分别代表不同长度和数值范围的无符号整型数据。首先，我们来了解一下uint8_t。它实际上就是unsigned char类型，用于表示一个无符号的8位整型数，其数值范围从0到255，占用一个字节的内存空间。紧随其后的是unit16_...
int32_t; //328bit有符号类型 typedef unsigned long intuint32_t; //32bit有符号类型 typedef signed long longint int64_t; //32bit有符号类型.可能无法使用 typedef unsigned long longint uint64_t; //32bit有符号类型,可能无法使用 /***保存地址值的***/ typedef int16_t intptr_t; //...
}//esp_err_t uart_set_line_inverse(uart_port_t uart_num, uint32_t inverse_mask)uart_set_line_inverse(1, UART_SIGNAL_RTS_INV);//特殊,修改输出或输入的通信电信号正负逻辑//Certain versions of Arduino core don't define MODE_RS485_HALF_DUPLEX and so fail to compile.//By using UART_MOD...
static uint32_t screenHeight; static lv_disp_draw_buf_t draw_buf; static lv_color_t *disp_draw_buf; static lv_disp_drv_t disp_drv; /* Display flushing */ void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p) ...
void Adafruit_NeoPixel::Color(uint8_t r, uint8_t g, uint8_t b)--设置RGB的值,从0,0,0到 255,255,255。返回的是32位压缩RGB值,然后可以将其分配给a变量,供以后使用或传递给setPixelColor()函数。 void Adafruit_NeoPixel::setPixelColor(uint16_t n, uint32_t c)--使用32位“打包”RGB或RGBW...
uint32_t lastMillis; uint8_t hours = 10; uint8_t minutes = 02; uint8_t seconds = 0; void printSeconds() { if (seconds & 1) { ssd1306_printFixed(54, 2, ":", STYLE_NORMAL); } else { ssd1306_printFixed(54, 2, " ", STYLE_NORMAL); ...
uint32_t color = strip.Color(val, val, val); strip.setPixelColor(0, color); if(val>=235) stat = SUB; if(val<=0) stat = ADD; strip.show(); delay(15); if(stat==SUB) val --; else if(stat==ADD) val++; } 1. 2. ...
deltat = fusion.deltatUpdate(); //this have to be done before calling the fusion update //choose only one of these two: // fusion.MahonyUpdate(gx, gy, gz, ax, ay, az, deltat); //mahony is suggested if there isn't the mag and the mcu is slow ...
uint32_t w= (area->x2 - area->x1 +1); uint32_t h= (area->y2 - area->y1 +1); gfx->draw16bitBeRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h); lv_disp_flush_ready(disp); }voidsetup()