C

Simple Line meter

code

#include "lvgl/lvgl.h"

void lv_ex_lmeter_1(void)
{
    /*Create a style for the line meter*/
    static lv_style_t style_lmeter;
    lv_style_copy(&style_lmeter, &lv_style_pretty_color);
    style_lmeter.line.width = 2;
    style_lmeter.line.color = LV_COLOR_SILVER;
    style_lmeter.body.main_color = lv_color_hex(0x91bfed);         /*Light blue*/
    style_lmeter.body.grad_color = lv_color_hex(0x04386c);         /*Dark blue*/
    style_lmeter.body.padding.left = 16;                           /*Line length*/

    /*Create a line meter */
    lv_obj_t * lmeter;
    lmeter = lv_lmeter_create(lv_scr_act(), NULL);
    lv_lmeter_set_range(lmeter, 0, 100);                   /*Set the range*/
    lv_lmeter_set_value(lmeter, 80);                       /*Set the current value*/
    lv_lmeter_set_scale(lmeter, 240, 31);                  /*Set the angle and number of lines*/
    lv_lmeter_set_style(lmeter, LV_LMETER_STYLE_MAIN, &style_lmeter);           /*Apply the new style*/
    lv_obj_set_size(lmeter, 150, 150);
    lv_obj_align(lmeter, NULL, LV_ALIGN_CENTER, 0, 0);
}

MicroPython

Simple Line meter

code

# Create a style for the line meter
style_lmeter = lv.style_t()
lv.style_copy(style_lmeter, lv.style_pretty_color)
style_lmeter.line.width = 2
style_lmeter.line.color = lv.color_hex(0xc0c0c0)              # Silver
style_lmeter.body.main_color = lv.color_hex(0x91bfed)         # Light blue
style_lmeter.body.grad_color = lv.color_hex(0x04386c)         # Dark blue
style_lmeter.body.padding.left = 16                           # Line length

# Create a line meter
lmeter = lv.lmeter(lv.scr_act())
lmeter.set_range(0, 100)                    # Set the range
lmeter.set_value(80)                        # Set the current value
lmeter.set_scale(240, 31)                   # Set the angle and number of lines
lmeter.set_style(lv.lmeter.STYLE.MAIN, style_lmeter)          # Apply the new style
lmeter.set_size(150, 150)
lmeter.align(None, lv.ALIGN.CENTER, 0, 0)