50ee4244d3
display.cpp:
Optimize battery voltage measurement
While calibrating noticed it is very non-linear
- outsource function to scale using lookup table
- add lookup table to batvoltage measurement
inserted many values to lookup table while testing
currentsensors:
Fix current value jumping around between 0 and 0.2 on display
while standstill
- add parameter snapToZeroThreshold
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
#pragma once
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extern "C" {
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.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 "nvs_flash.h"
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#include "nvs.h"
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#include "ssd1306.h"
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#include "font8x8_basic.h"
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}
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#include "joystick.hpp"
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#include "control.hpp"
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#include "speedsensor.hpp"
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// configuration for initializing display (passed to task as well)
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typedef struct display_config_t {
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gpio_num_t gpio_scl;
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gpio_num_t gpio_sda;
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int gpio_reset; // negative number means reset pin is not connected or not used
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int width;
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int height;
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int offsetX;
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bool flip;
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int contrast;
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} display_config_t;
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// struct with variables passed to task from main()
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typedef struct display_task_parameters_t {
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display_config_t displayConfig;
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controlledArmchair * control;
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evaluatedJoystick * joystick;
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QueueHandle_t encoderQueue;
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controlledMotor * motorLeft;
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controlledMotor * motorRight;
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speedSensor * speedLeft;
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speedSensor * speedRight;
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buzzer_t *buzzer;
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nvs_handle_t * nvsHandle;
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} display_task_parameters_t;
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// enum for selecting the currently shown status page (display content when not in MENU mode)
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typedef enum displayStatusPage_t {STATUS_SCREEN_OVERVIEW=0, STATUS_SCREEN_SPEED, STATUS_SCREEN_JOYSTICK, STATUS_SCREEN_MOTORS} displayStatusPage_t;
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// get precise battery voltage (using lookup table)
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float getBatteryVoltage();
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// function to select one of the defined status screens which are shown on display when not in MENU mode
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void display_selectStatusPage(displayStatusPage_t newStatusPage);
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//task that inititialized the display, displays welcome message
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//and releatedly updates the display with certain content
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void display_task( void * pvParameters );
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//abstracted function for printing one line on the display, using a format string directly
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//and options: Large-font (3 lines, max 5 digits), or inverted color
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void displayTextLine(SSD1306_t *display, int line, bool large, bool inverted, const char *format, ...);
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//abstracted function for printing a string CENTERED on the display, using a format string
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//adds spaces left and right to fill the line (if not too long already)
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void displayTextLineCentered(SSD1306_t *display, int line, bool isLarge, bool inverted, const char *format, ...); |